Astrum
What Makes Stars So Different From Each Other?
Why are stars different brightness, colours and sizes? A look at the main sequence of stars, and what makes stars different from each other.
Curated Video
Photosynthesis Experiment
Follow along and learn about the process of photosynthesis in plants. Then do a simple experiment to demonstrate the process.
0:00 – Introduction
0:07 – What you need
0:17 – Explanation
1:16 – Safety
1:23 – Experiment
2:09 – Results
...
Curated Video
The Chemistry In Wonder Woman
Dr. Boyd discusses the chemistry behind "Dr. Poison's" new chemical weapon in the new Wonder Woman movie.
Curated Video
Color Changing Celery
Learn about plants, and see how you can change their color!
Minute 0:30 – Introduction
Minute 0:43 – What you need
Minute 1:06 – Explanation & description of plants and their function
Minute 2:24 – Experimental plan
Minute 3:03 –...
Curated Video
Static Electricity – Part 2
In Part 2 of a discussion on static electricity, Dr. Boyd shows you the effect static electricity has on water.
0:00 – Introduction
0:07 – Explanation of Static Electricity
0:50 – What you’ll need
1:28 – Polarity of Water
2:10 –...
Veritasium
Why Trees Are Out to Get You
These videos are from 2012 so my interest in trees goes back a long ways. I think these videos discuss two of the most interesting and amazing facts about our leafy friends: they are made mostly of CO2 (which comes from us breathing out...
Veritasium
Making Liquid Nitrogen From Scratch!
Making liquid nitrogen is hard - in fact up until 150 years ago scientists doubted whether it was even possible to liquefy nitrogen. In 1823, At the royal institution in London, Michael Faraday first produced liquid chlorine, kind of...
Curated Video
Formal Charge Made Simple: A Guide to Molecular Stability
Formal Charge Made Simple: A Guide to Molecular Stability Formal charge is a bookkeeping tool used to estimate the charge distribution within a molecule. It is calculated by comparing the number of valence electrons in an atom's free...
Curated Video
Lewis Structures in Action: CO₂ and NO₂ Examples
In this topic, we explore how to draw and interpret the Lewis structures of carbon dioxide (CO₂) and nitrogen dioxide (NO₂), two important molecules in chemistry. CO₂ features a linear structure with double bonds between carbon and...
Curated Video
VSEPR Theory - lone electron pair influence
Bond Angle Distortion: Lone pairs reduce bond angles between bonding pairs. For example, in a molecule like NH₃ (ammonia), the ideal tetrahedral angle of 109.5° is compressed to around 107° due to the presence of a lone pair on nitrogen....
Curated Video
VSEPR Theory: Predicting Molecular Shapes with Ease
VSEPR postulates state that the geometry of a molecule depends on the number and arrangement of bonding and lone electron pairs around the central atom
Curated Video
Lewis Symbols Decoded: Simplifying Electron Counts
Lewis symbols represent valence electrons around an atom's chemical symbol, helping visualize bonding and the formation of molecules
Astrum
What We Get Wrong About Nebulas
Thanks to the Hubble Space Telescope, we have seen nebula like never before. But are they really as colourful as Hubble makes out?
Science ABC
What Happens (Chemically) When Wood Burns?
When wood comes in contact with fire, it undergoes thermal degradation, or pyrolysis. The pyrolysis of wood leads to the release of certain volatile gases and the formation of char, which eventually undergoes flaming and glowing...
Science ABC
Respiratory System: From Inspiration to Expiration Explained in Simple Words
The respiratory system is composed of the nose or nasal cavity, the pharynx, the larynx, the trachea, the bronchi, and the lungs. The respiratory system's functions are gaseous exchange, inhaling oxygen and exhaling out carbon dioxide,...
Science ABC
Rancidity: Why Do Foods Turn Rancid?
Rancidity refers to the complete or incomplete hydrolysis or oxidation of fats and oils when exposed to air, light, moisture, and bacterial activity; this generally occurs in food items, making them undesirable for consumption. In more...
Science ABC
Lymphatic System Explained In Simple Words
The lymphatic system consists of a complex network of lymphatic vessels, glands or nodes, and organs, such as the spleen and thymus, extending throughout the body. Through it flows a fluid called lymph. The lymphatic system has three...
Science ABC
How Do Astronauts Get Breathable Oxygen In Space (Aboard The ISS)?
Astronauts onboard the ISS get their breathable oxygen in two main ways - through systems onboard the ISS that generate breathable oxygen and through resupply missions that deliver breathable oxygen to the ISS. There is plenty of oxygen...
Science ABC
How Do Airplanes Get the Oxygen We Breathe?
As a plane flies, fast-moving air enters both the jet turbine engines. This fast-moving air is compressed as it passes through layers of fan blades inside the turbine. It’s at the compressor stage that a portion of the hot air is...
Science ABC
Does Donating Blood Burn Calories?
Donating blood can lead to weight loss, but this loss is not significant. As covered in this video, the average donation is 1 pint of blood, which weighs about 1 pound; so right off the bat, youre walking out of the donation center 1...
Science ABC
Germination: How Does A Seed Become A Plant?
Seed grow into plants through the process of germination. Germination requires optimum sunlight, temperature, water and air for the seed to turn into a plant. Isn’t it amazing that a tree as tall as a building can emerge from just a tiny...
Science ABC
Cosmic Calendar: History of The Universe In Just 365 days!
The concept of the cosmic calendar was popularized by famous astronomer Carl Sagan to help people understand just how far apart on a time scale events in the Universe are. Basically, he arranged the 13.8 billion years of the Universe’s...
Science ABC
Circulatory System And The Heart | Explained In Simple Words
The circulatory system is a vast, complex network of blood vessels that serve as highways for transporting blood which contains life-sustaining molecules, such as nutrients, gasses, hormones and waste products, to the various organs of...
Science ABC
Cellular Respiration: How Do Cells Get Energy?
Cellular respiration is the process through which the cell generates energy, in the form of ATP, using food and oxygen. The is a multistep biochemical process where food, primarily the carbohydrate glucose, is broken down to produce...