Best Free Science Courses

Find the best online Free Science Courses for you. The courses are sorted based on popularity and user ratings. We do not allow paid placements in any of our rankings.

Astronomy – State of the Art

Join Prof. Chris Impey in this Astronomy for beginners course and learn about today's amazing astronomical discoveries!

Created by Chris Impey - University Distinguished Professor, University of Arizona


Students: 105277, Price: Free

This astronomy for beginners course is for anyone who loves astronomy and wants to get up to date on the most recent astronomical discoveries.  Join Professor Chris Impey and our team of instructors from Steward Observatory at the University of Arizona to learn the science behind the latest astronomy news headlines, to enrich your understanding of the universe, and to glimpse the future of this exciting area of research.  Lecture material will be augmented by discussion, live Q&A, and guest lectures. Find us on Facebook, Google+, YouTube, and follow us on Twitter @AstronomySOTA.

Physics: Intro to Electricity & Magnetism

A fun and easy way to boost your physics grades

Created by Scott Redmond - College Physics Tutor and Former Professor


Students: 25378, Price: Free

This course introduces the fundamental concepts of electric charge, electric force, and electric fields, using hand-drawn animations.  This is excellent for students who are taking a physics class but need extra help understanding the material, whether it's because your teacher is hard to understand, you miss some lectures, or you'd simply like a fresh perspective.

Master the Core Concepts of Electricity & Magnetism in this Introductory Course

  • Learn the fundamental concepts, electric charge and electric field, that help the rest of the course go more smoothly.
  • Understand how charging by induction really works so you can guarantee you'll get those grades on your unit test.
  • Explain how the electric field is independent of the test charge.
  • Solve problems involving electric charges moving through electric fields.

Boost Your Grades in Your Electricity & Magnetism Physics Course

This course will boost your physics grades by clearly explaining the fundamental introductory concepts and giving insight into what sorts of difficulties professors like to introduce in exams.  Here, you will learn all about the first two chapters, on electric charge and electric fields, of a standard physics course on electricity and magnetism.  The course author uses his experience teaching college physics to highlight the key ideas and dangerous misconceptions while having some fun with hand-drawn animations and some goofy examples.

At the end of this course, you will have a solid understanding of electric charges and electric fields, and you will know what mistakes to avoid so you can get better grades on your next test or exam.

Geology: Earth Science for Everyone

This is the ultimate geology crash-course, you'll learn about the magic of Earth's inner workings concisely and easily.

Created by DJ Lake - Aspiring Geologist! (MSc. Student)


Students: 22892, Price: Free

This ambitious course in Earth Science is the first of its kind. DJ Lake inspires wonder, explaining challenging scientific concepts clearly and easily.

Starting billions of years ago at the beginning of time, we bring you right to the present day. The veil is lifted on why the Earth works as it does, how we know what we know about our planet, and how all this affects your daily experience of the world.

This course is an introduction to Earth Science topics through the history of geology and chemistry. It is aimed at giving the student knowledge of why and how we know what we know in Earth Science. If you are looking for a course that will teach you identification of common rocks & minerals, you might find another course more appropriate because the focus here is big-picture ideas. 

We'll answer the fundamental questions...

      • How are mountains made?
      • Why do oceans exist?
      • What is a crystal?
      • How old is the Earth?
      • and many more…

Basic Hydrology

Creating hydrologic models of small watersheds for conservation bmps, leveraging the power of GIS.

Created by Tim Clark - Conservation Planning, Design & Implementation across NY!


Students: 16127, Price: Free

This course teaches soil and water district technicians and junior engineers how to model small watersheds for conservation and stormwater management structures. Three hydrological models are presented: EFH2, TR-20/TR-55, and the rational method. The course includes a blend of GIS and by-hand analysis methods. For the GIS portions, parallel workflows are presented for ArcGIS (Spatial Analyst extension), and for QGIS. The EFH2 software is presented for rural hydrology while HydroCAD (Free Sampler edition) is used for urban projects. The course culminates in two design examples to allow students to implement what they've learned.

Chemistry 101 – Part 4 Chemistry in Society

An introductory course for anybody who wants to study chemistry - either towards future pathways or just for fun!

Created by Graham Bray - Director of STEM, East Sussex, UK


Students: 14446, Price: Free

This course is the fourth and final part of a comprehensive introduction to Chemistry, covering everything you will need to know as you prepare for possible future exams. It doesn't matter how much, or how little, prior knowledge of Chemistry you've got as this course will take you through all the necessary stages.

Foundations of Computer Science: Theory and Practice

Learn the fundamental topics of Computer Science and practice them for full mastery

Created by SE Factory - Leading coding bootcamp in Lebanon


Students: 13019, Price: Free

  • Master a selection of Algorithms and how to analyze their performance using complexity analysis

  • Understand the different data structures like LinkedLists, Stacks, Queues, Trees, Graphs (etc.) and use them to solve problems efficiently

  • Learn these essential topics using Python. Python is easy and quite fun!

Study groups

Study groups will be organized in Beirut, Lebanon once a week during which you'll be able to go over the material that you didn't understand, ask questions and solve problems with our experts. Schedule will be sent to all students taking this course.

Who is this course for?

  1. Anyone who wants to learn the fundamental topics of Computer Science. A good understanding of Data Structures and Algorithms will take you a long way as a programmer

  2. As an enthusiast you will learn the ability to evaluate your code and optimize it for greatest efficiency. Data Structures will greatly enhance how you write your code and how to effectively store and manipulate data in memory

  3. As a former Computer Science or Software Engineering student this course will be a strong refresher

Enroll in this FREE course and you will learn:

  1. Python (Programming Language)

  2. Algorithms (Sort, Search, Binary Search Tree Insert/Delete/Search, Depth First Search, Breadth First Search)

  3. Complexity Analysis (Big-O)

  4. Data Structures (Linked List, Stack, Queue, Priority Queue, Trees, Graphs)

Astronomy for VCE Physics

Learn the VCE Physics Astronomy course through instruction, simulations and your own observations of the night sky.

Created by Paul Fielding - Teacher


Students: 12113, Price: Free

This course covers the content as prescribed by VCAA for the Unit 1,2 Physics Detailed Study of Astronomy.

The course includes audio/video instruction, running simulations, analysing images and, importantly, your own observations of the night sky.

The course will take 3 weeks to complete, with 3 lessons per week.

Each lesson typically involves:

- the introduction of the theory (video and/or text)

- experiment/practical activity/night sky observation/simulation exercise

- further reading/references

- quiz

The final lessons will go through revision of course content, then a final test.

AP Environmental Science

A practical guide to Environmental Science

Created by Vedika Shenoy - Instructor


Students: 10733, Price: Free

AP Environmental Science is a course that gives you a chance to "learn about the natural world," and to "study both human-made and natural environmental problems," as stated on College Board. Currently, however, it is clear that many students are not reaping the full benefits that this course has to offer. As shown by the most recent exam score distributions in 2016, a majority (54.4%) of the students taking the exam did not pass. Additionally, the mean score sat at a low 2.55. 

So, why is this? 

As a student who actually self studied this course last year (and got a 5 on the exam), I realized that prep material, while structured, was not actually conducive to helping the student make connections between concepts as was intended by College Board. 

There is a large volume of information that you are expected to know for this exam - everything from laws, to case studies, to chemical reactions. Now, don't let this scare you - the material is incredibly interesting, and if presented in the correct manner, is possible to internalize fully. The problem is, in most books, this is not the case. Information is presented in a somewhat disjointed manner - water concepts are discussed in an early chapter, but water pollution itself is not actually discussed until some 200 pages later. 

With this course, I hope to accomplish a few things. 

Present information in a manner most conducive to learning. 

As I just mentioned, the information presented in most prep books makes it difficult to draw connections between various concepts. With this course, I have rearranged a few concepts slightly in a way that I, as a student, felt was best for my learning. 

Review and clarify information tested on the exam. 

Within this course, I have created short and to-the-point videos that allow students to review and learn the basic concepts that will be tested on the AP exam. i have created short review sheets for each section, and have also recommended exercises from a few other books that I felt prepared me well for the exam. 

Focus on the free response section. 

I said before that the scores distributions for the AP Environmental Science exam were terribly low. This is most likely due to the fact that many students perform badly on the free response section, which accounts for 40% of your total score. In my videos, I have placed an emphasis on the free response questions, as these rely most heavily on making connections and using your problem solving skills. 

Give you a basic introduction to environmental science and various overlapping fields. 

Not only do I want to prepare you for the AP Exam, but I also want you to leave with a basic understanding of environmental science. The curriculum for this course doesn't only focus on science - it also touches upon laws, politics, and businesses, among other things. 

Introduction to Developing QGIS Python Plugins

Customize and expand the functionality of QGIS

Created by Konrad Hafen - Spatial Scientist


Students: 8865, Price: Free

Create custom applications and UIs that expand the functionality of QGIS and can be installed by any user. This course will teach you how to develop custom user interfaces (UIs) and link UIs to Python code to perform custom analysis. The plugins you create can be uploaded to the QGIS Plugin Repository to be installed by any user.

Free Chemistry Course – Colligative Properties of Solutions

Freezing point depression, boiling point elevation, osmotic pressure, Raoult's law of volatile and nonvolatile solutions

Created by Live Tutelage - Elearning


Students: 7745, Price: Free

    the end of the course, the student will be able to understand the colligative
    properties of solutions.

    main colligative properties of solution include freezing point depression,
    boiling point elevation and osmotic pressure.

    learning freezing point depression, student will be able to calculate

    • freezing point of a solution
    • the
      unknown molar mass of a solute in the solution

    Boiling point elevation, student will be able to learn how to calculate

    • the boiling point of
    • the
      unknown molar mass of solute in the solution

    osmotic pressure, student will learn how to calculate

    • the
      unknown molecular weight of solute in the solution

    important colligative property is Van't Hoff Factor. It helps us to understand
    if a compound associates or dissociates in a solution.

    going through Van't Hoff factor, student be able to calculate

    • degree of dissociation
    • association
      of a compound in the solution

    Raoult's law of solutions, student will learn

    • Raoult's law of volatile
    • Raoult's law of non-volatile
    • Henry's law
    • how
      Raoult's law is a special case of Henry law

    Raoult's law of non-volatile solute, student will be able to learn how to use
    Raoult's law formula

    • for dilute solutions
    • for
      concentrated solutions

The Vocabulary of Science: First Steps to Science Literacy

Learn to think more critically about science by mastering the language we use to talk about science

Created by Kevin deLaplante - PhD, Philosopher, Founder of the Critical Thinker Academy


Students: 7443, Price: Free


Is evolution a theory, a fact, or both? This question has been debated by critics and defenders of evolution for many years.

Some claim that evolution is a theory, not a fact. Others claim that evolution is a fact, not a theory. And still others say that evolution is both a theory and a fact.

What exactly is going on here?

One reason why the debate persists is that people disagree not only on the strength of the evidence for evolution, but also on the meanings of the key terms, “theory” and “fact”.

This course is designed to help you understand and think critically about debates like these, debates about the nature of science that turn on the meanings of scientific terms like “theory”, “fact”, “law”, “hypothesis” and “model”.


I have 20 years of experience teaching the history and philosophy of science at the university level, but now I work as independent online educator. I have given lectures on the topic of science literacy to national and international audiences.

I have over 30,000 students on Udemy, where I also offer courses on critical thinking and argumentative essay writing.


This course is for anyone interested in learning more about how a philosopher of science thinks about science and scientific reasoning.

It will be of special interest to science students, science educators of all kinds, and people interested in debates about the nature of science.

In this course you’ll learn the various meanings of the key terms, “theory”, “fact”, “law”, “hypothesis” and “model”, as they're used both within and outside science.

You'll learn the most common confusions made by people who write about science.

And you'll have an opportunity to test your understanding through quizzes and a video critique assignment.

Basic Python/Machine Learning in Bioinformatics

Please download the kaggle for the code

Created by William Kang - Bioinformatics Researcher


Students: 6961, Price: Free

This is a course intended for beginners interested in applying Python in Bioinformatics. We will go over basic Python concepts, useful Python libraries for bioinformatics/ML, and going through several mini-projects that will use these Python/ML concepts. These mini-projects include a sequence analysis (with no libraries) Python example, a Python sequence analysis example using libraries, and a basic Sklearn Machine Learning example.

Learn Image Analysis

Become an expert in image analysis: create powerful algorithms to detect features reliably and measure them accurately

Created by MIPAR Image Analysis - Software Company


Students: 6946, Price: Free

In this course you will learn how to create image analysis algorithms that actually work. You will learn the basics of image analysis, how to create your own analysis workflows, and how to become an expert at solving your own problems. We will teach you all the tools required to go from beginner to expert in image analysis. Come join us!

Note:  We have lots more content planned!  The finished course will have five sections, each covering a stage of the image analysis process.  Be sure to stay tuned!

Culvert Design using HY-8

A guide to designing culverts for access roads and laneways supporting agricultural conservation projects

Created by Tim Clark - Conservation Planning, Design & Implementation across NY!


Students: 6808, Price: Free

This course will guide you through using HY-8 to analyze culverts. You'll watch short demonstration videos and then apply what you've learned to class exercises, and then check you work. Focus is on applying the software to real problems - does not delve deeply into hydraulics, hydrology, erosion control, fish passage, or construction.

An Introduction to Heat Transfer

The essential course for understanding the Mechanics of Heat

Created by Haroon Junaidi - Lecturer: Engineer : Published Author


Students: 6768, Price: Free

The course will cover the three modes of heat transfer namely conduction, convection and radiation in detail. These modes will be explained through descriptions and illustrations. The underlying equations that  define these phenomenon will also be explained in an easy to understand manner.

The last section of the course will explore some interesting examples of Heat transfer from everyday life to engineering. The way heat is managed by entities from animals to satellites will be looked at in detail.

This course will provide several golden nuggets of information to those who are interested in finding out how the thermal mechanics of this world work. It will also provide a head start to students who are due to study heat transfer as part of their engineering curriculum. For students who have struggled with this subject, this course will aim to build and solidify core concepts.  

The course is made up of written lectures, Power points,  videos and downloadable pdfs. Notes will be provided and tutorials will be given on solving mathematical problems. Almost 30 minutes of videos will be included. 

If you are dissatisfied with the course, your money will be refunded. 

Mass Transfer: Diffusion & Convection

Learn the mass transfer mechanisms and how to model them for further Mass Transfer Unit Operation Equipment Design.

Created by Chemical Engineering Guy - Just a Guy teaching Chemical Engineering Online!


Students: 6755, Price: Free


Your Mass Transfer Unit Operation and Separation Process Career starts with the understanding of the phenomena occurring in the molecular level.

Understanding how equilibrium and diffusion helps mass transfer between phases will let you understand how several equipment works, such as Flashing Drums, Absorbers, Distillation Columns, Extractors, etc...

We will cover:

  • Introduction to Mass Transfer, its importance and role in Separation Processes

  • Diffusion: Fick's Law

  • The mathematical models required (flux equation, continuity equation, differential equation

  • Diffusion Coefficients: Estimation and Calculation via Correlations

  • Steady-State Diffusion: (equimolar counterflow diffusion, unimolecular diffusion)

  • Unsteady-State Diffusion

  • Mass transfer coefficients

  • Dimensionless numbers: Reynolds, Sherwood, Prandtl, Nusselt, etc...

  • Laminar Flow Mass Transfer Models (Falling Film, Boundary Layers)

  • Turbulent Flow Mass Transfer Models 

  • Fluid-Fluid Theory (Film, Penetration, Surface Renewal theories)

  • Interphase Theory (Two-film Theory + Overall Mass Transfer)

  • Stage Operations

  • Counter-current & Cross-current Operation

Solved-Problem Approach:

All theory is backed with exercises, solved problems, and proposed problems for homework/individual study.

At the end of the course:

You will be able to understand mass transfer mechanism and processes which are required for further Equipment Design and Operation. You will be able to continue with a Mass Transfer Unit Operation Course and/or Separation Processes Course.

About your instructor:

I majored in Chemical Engineering with a minor in Industrial Engineering back in 2012.

I worked as a Process Design/Operation Engineer in INEOS Koln, mostly on the petrochemical area relating to naphtha treating. There I designed and modeled several processes relating separation of isopentane/pentane mixtures, catalytic reactors and separation processes such as distillation columns, flash separation devices and transportation of tank-trucks of product.

Chemistry – Guided Memorization Nomenclature

Ditch the Flash Cards and Master Nomenclature 5 Minutes at a Time

Created by Michelle Dicus - Chemistry Professor


Students: 5607, Price: Free

Learning how to learn Chemistry is the single most important skill you'll need to master the material in a rigorous high school or college Chemistry course. CoreMethod Chemistry trains your brain to do just that through a chemical naming training series!  CoreMethod Chemistry has a vision for foundational skill training in 3 core areas; The Language, The Math, and the Chemical Concepts. Investing in learning the language of chemistry first, the way you would any new language...a deep integration and automatic recall... will provide the context for everything else you learn in a Chemistry course. It is sure to make your experience in Chemistry enjoyable and successful. This course will train you beyond rot memorization in a fun and effective way and build your confidence for earning an A in your Chemistry class.  It will demystify the language of chemistry, bring your awareness to the patterns that exist in the system of Chemistry, and ultimately help you appreciate the simplicity found in the methods and approaches used in Chemistry.

How to learn physics faster? AP Physics, IIT (Free course)

"11 ways to learn physics faster" (AP Physics, physics 1, IIT JEE , NEET physics, IGCSE)

Created by Vishesh Nigam - learn faster, learn better with me!


Students: 5571, Price: Free

How do I learn physics faster? How do I tackle numerical problems in physics? what is the best way to learn physics? How do I get good marks in physics? If you relate to any of the questions, this is a free course for you. Here are 11 ideas to get better at physics.

These ideas and tips have come about as a collaboration between me and one of my best students  who studies at UC Berkeley College of Engineering. Tip no. 11 - “Self Belief” , is particularly from her. She believes that systematic effort plus self belief is the key to getting better at physics.

After you complete the course I would strongly recommend you to follow the 11 tips consistently over next 30 days. You may find it a little difficult to practice in the beginning. However as you try and practice more, you will find that your understanding of Physics is improving every day.

In fact, physics is a lot about internalizing the concepts by repeat reading or watching and applying them not only in problem solving but also in real life.

So enjoy this free course and let me know what you think!

Who can enroll in this course:

  • Physics students of class 11 and 12

  • Physics students preparing for AP physics, physics 1, high school, IIT JEE, NEET or freshman engineering

  • Physics courses for physics teachers

ATOLL PRO: Introduction to Aquaculture

Get started growing healthy food by learning about aquaculture and aquaponics.

Created by Barbara Payne McLain - Educational Director


Students: 5191, Price: Free

This incredible online introduction to aquaculture is "one of a kind" in the educational community. Using multiple, expert instructors, we hope to convince you to get started on your journey in this exciting industry with interesting video lectures and plenty of self-assessments to insure that you are "getting it." Learn why aquaculture and aquaponics are the fastest growing branches of agriculture today.

Donʻt want a new career? Then skip right to the aquaponics section and grow your own organic vegetables using freshwater fish to reduce your growing time and save a ton of water.

Jump in and challenge yourself to complete the entire course and all the quizzes. Several schools (high school/community college/university) have used our ATOLL course for graduation credit.

Stream Crossing Design (NY NRCS Standard 578)

A guide to designing at-grade, culvert and bridge crossings for animals and agricultural vehicles in NY.

Created by Tim Clark - Conservation Planning, Design & Implementation across NY!


Students: 4606, Price: Free

We'll be looking at the 3 types of stream crossings: at grade (fords), culverts, and bridges. Each type has trade-offs in price, design complexity, pollution prevention, wildlife impact, and stream morphology impact. We'll cover the pros and cons you should consider during the design process so you can make good decisions when crossing streams on your farm projects.

Electromagnetic Tutorials part 1 with MATLAB & GeoGebra

Vector algebra with MATLAB

Created by Husain Habib - Electronic Engineer Graduate


Students: 4519, Price: Free

Electromagnetic tutorial to learn how to use mathematical skills for solving Electromagnetic problems from Coulomb's Law to Maxwell's equations , 

this is the first course out of 9 Parts, ( all from sadiku book: elements of electromagnetic)

CH 1: Vector Algebra

CH 2: Coordinate Systems and Transformations

CH 3: Vector Calculus

CH 4: Electro Static Fields

CH 5: Electric Fields in Material Space

CH 6: Electro Static Boundary-Value Problems

CH 7: Magneto Static Fields

CH 8: Magnetic Forces Materials and Devices

CH 9: Maxwell’s Equations 

Physics: Master 2D Torque in Record Time

Catch up with your class faster than you thought possible, and watch your grades soar!

Created by Scott Redmond - College Physics Tutor and Former Professor


Students: 4489, Price: Free

This course
teaches introductory physics students how to
calculate torque and how to set up free body diagrams
and solve problems involving torque. Torque is one of the
trickiest concepts in introductory physics, and it is quite common
for students to stumble with it at first.

course is designed to teach you the fundamentals as quickly as
possible. Using short-and-sweet videos, this course
breaks torque skills into bite-sized chunks and gives lots of
practice with detailed examples and rapid-fire calculations in
which you pause the video to try the problem and then resume to see
how you did. You can save time by using this interactivity to
master torque in one shot, and you can also pick and choose
individual topics to review specific skills or even speed up or slow
down each video to help you understand it better.

vast majority of this course is video. There is also a PDF
worksheet that you may optionally print out to help you understand
some hands-on concepts.

taking this course, students should understand vectors, especially
vector components. It can help if students already know
how to use geometry and trigonometry to find angles between
lines, although this is demonstrated in many examples.

goal of this course is to give you the benefits of a private
tutor at a fraction of the cost. This
course is perfect for students who need to catch up with their class
on their own time, who don't learn well by reading their
textbook, or who want to learn tricks and techniques to master torque
faster and easier than studying on their own.

Physics: A beginners guide to Kinematics

This introduction course to vectors and kinematics is suitable for interested students with good algebra skills.

Created by Ryan Thompson - Physics and Math Teacher


Students: 4055, Price: Free

This course will explain the difference between a vector and a scalar and demonstrate how to solve simple problems in physics with them. I have been teaching physics for 14 years and I will guide you through this amazing subject. At the end of this course you will understand a fundamental property of physics: the vector and be able to solve simple problems with vectors. Sample questions and worked out answers are also a part of this course.

Conducting Introductory Computational Biology Research

Get an introduction to computational biology and learn what it takes to develop a research project

Created by Saaim Khan - Award-Winning Researcher & Educator


Students: 3985, Price: Free

Learn about Computational Biology and how YOU can create an introductory research project!

Get access to valuable tutorials and lectures that will grant you the knowledge to become comfortable in the field of Computational Biology for FREE!

  • Precision Medicine Approach

  • Selecting an Appropriate Disease of Focus

  • NCBI and GEO2R

  • String-db, Gene Ontology and KEGG Pathways

  • Developing Research Conclusions

Content Overview
Suitable for anyone with basic biology knowledge, this course will take you through the world of computational biology and how computers and genomics have the power to change the face of medicine.

Starting with the philosophy behind precision medicine, this course will help you embrace the way that computational biologists think and operate, providing you with necessary approach to solving complex biomedical issues

With these basics mastered, the course will take you through selecting a disease of study that will both give you the motivation to see your project come to fruition and yield results. With your disease of focus in hand, this course will then guide you through some major computational biology analysis tools such as GEO2R, Strong-db, the Gene Ontology Consortium and KEGG Pathways, in order to develop sound research conclusions

Students completing the course will have the knowledge to investigate a disease from a computational biology point of view and will possess the necessary skills and data to form a research project.

Artificial Intelligence In Bioinformatics

Take the first step into machine learning for bioinformatics with a step-by-step approach

Created by Yash Gupta - Chief Technical Officer at The Helyx Initiative


Students: 3899, Price: Free

This free course is heavily based on the ideology of "learning by doing" and, as a result, will be very hands-on. Students will learn a lot more about the emerging field of the future, artificial intelligence, and machine learning, through a series of mini-projects relating to biology in a field known as bioinformatics that can be expanded on after the course. As a result of the projects being done throughout the course, students will also gain further research and publication ideas, such as science fairs and journals. These projects include:

  • Using breast cancer dimension data to classify breast cancer

  • Classifying bioassay data

  • Detecting pneumonia by analyzing lung images with convolutional neural networks

  • Detecting malaria by analyzing skin images

Current Environmental News and Endangered Animals

Free Learning Courses Highlighting Current Science/Environment news & Endangered Animals

Created by AUDREY 4CARE - an Instructor at Udemy 4 Science Learning Videos


Students: 3145, Price: Free

Audrey(AUDREY4CARE) is the Winner of 2018 U.S. President's Environment Youth Awards!

Welcome to AUDREY4CARE! And Thanks for Signing up "Best Science Learning Videos" in advance (wink! wink!). I am your instructor for this course, just call me Audrey, and I hope that you enjoy all the chapters. 

All the contents are from reputable sources like CNN , BBC, the Guardian, National Geographic, World Wild Life(WWF), NYTimes, Animal Planet, Reuters, the Journal, Washington Post, CBS, ABC, UN, etc. Sounds hard and complicated ? Don't worry! I will summarize them to you with very easy explanations by a little girl, me!!. If I understand, you can understand too!

These videos are for people who want to keep up with "Current Science Issues" or who have got kids and you want to get them on board with learning about everyday "Science/Environmental Issues", so "YOU over there!  Check it out!"

I have tried to make each videos easy to grasp and joyful.  I have been creating weekly videos highlighting <Current Science/Environmental News & Endangered Animals>, which have been used as educational videos in different schools in her local community. What's to lose?  It's free classes anyway!! :)

So what are you waiting for?  let's get started... and have fun!! 

Love, Audrey

-All topics are weekly updated-


If you have any problems or questions, I encourage you to contact me through the course Q&A or the Udemy message system.  You may also directly contact me at my email address (  I would appreciate any comments, suggestions and feedback that will help us to enhance the videos.

Data Types and methods of Data collection in Research

Research Methodology

Created by Shailaja Patil - Assistant Professor


Students: 3118, Price: Free

After completing the course students will be able to get importance of data in research, types of data, sources of data with suitable examples. Researchers can get methods of data collection. Researchers will come to know the parameters for selection of data collection methods. Researchers will be able to select the data collection method for their research.

Chemistry (Course 1 of 4) An Inquiry-Based Approach

Learn Chemistry Like a Scientist. Course 1: The Fundamentals.

Created by Brian Swanson - Professional Math and Science Educator


Students: 2694, Price: Free

This curriculum covers the following topics through a series of courses with learner-centered, inquiry-based, and teacher-supported activities that use models, investigative questioning, and mathematical relationships to help you discover the wonderful world of Chemistry.  It is a unique, fun, and effective way to learn.  No textbook required.  The activities guide you to learn the concepts and the teacher instruction will complement and support the discovery process.  The activities are used with permission from the POGIL Project. 


Course 1 (This Course) (free):

  • Introduction to Chemistry
    Fundamentals of Experimental Design

    Organizing Data

    Significant Digits and Measurement

    Significant Zeros

    Classification of Matter

Course 2 (A Separate Course) ($49):

  • Atomic and Electron Structure



    Average Atomic Mass

    Coulombic Attraction

    Electron Energy and Light

    Electron Configurations

  • Periodic Table

    Cracking the Periodic Table Code

    Periodic Trends

  • Ionic and Molecular Compounds

    Naming Ionic Compounds

    Polyatomic Ions

    Naming Molecular Compounds

    Naming Acids

    Molecular Geometry

Course 3 (A Separate Course) ($49):

  • Chemical Reactions and Stoichiometry

    Types of Chemical Reactions

    Relative Mass and Mole

    Mole Ratios

    Limiting and Excess Reactants

  • Properties of Gases

    Gas Variables

  • Solubility and Solutions

    Saturated and Unsaturated Solutions



Course 4 (A Separate Course) ($49):

  • Thermochemistry


    Bond Energy

  • Equilibrium in Reactions


  • Acids and Bases

    Acids and Bases Introduction

    Strong versus Weak Acids

    Calculating pH

  • Oxidation and Reduction

    Oxidation and Reduction Reactions

    The Activity Series


Why Study Astronomy?

Find the answers to all your questions

Created by Astron SHK Trust - Science & creativity hand in hand


Students: 2666, Price: Free

Astronomy is the subject of the entire universe! allows us to jump into the world which has no boundaries. Astronomy is mind-numbingly massive subject and we as humans have spent years exploring it. The more you know about it, the more interesting it gets. It is interesting to know the wonders of the universe, but we often tend to wonder why we should study about it?

In this course, Get ready to discover the edges of your imagination. Astronomy makes you realize how tiny you are and gives you a whole new perspective on life! What lies beyond the beautiful images of the heavenly bodies? How astronomy is involved in our day to day lives? Why study astronomy? How do you get benefited from this? Hop on and join me now to find all these answers.

Chemical Hygiene Training

How to play safe in a research laboratory

Created by Sheldon Gu - Chemist


Students: 2559, Price: Free

This is a training MOOC for chemical hygiene. The primary goal is to provide domain knowledge to the audience. These domain knowledge includes how to read safety data sheet, how to recognize specific labels et al. The second goal is to provide some kind of skills or correct responses in different scenarios. These skills will be like how to properly label containers with chemicals, how to properly deal with a leak in laboratory and what is the suitable reaction to a fire in laboratory.