In this video, we cover:<br/>
- What air po<br/>llution is
- What substances c<br/>ount as air pollutants- How those substances are made
- Why they're harmful / the problems they cause

Ever wondered what your blood is made of? Red blood cells, white blood, platelets and plasma! Learn what each of these components does and how we can replace it with artificial blood.

This video covers the structure and function of the heart, the double circulatory system, the associated blood vessels, pacemaker cells and the coronary arteries.

Photosynthesis. What is it? How does it work? Why do plants do it? What is all that glucose used for?

Learn how the lungs and alveoli are adapted to carry out gas exchange.

This video covers the effects of exercise on the body, including details about respiration and the oxygen debt.

Learn the roles of arteries, capillaries and veins and how they are adapted to those roles; as well how to calculated the rate of blood flow.

This video covers:<br/>
- What exchange s<br/>urfaces are
- The key features<br/> of exchange surfaces
- Specific examples including alveoli, villi, root hair cells, and leaves

This video covers:

- Which gases make up our atmos
phere
- Why atmosphere pressure decreases with increasing
altitude
- Why it is difficult to breathe at

high altitude
s

General info:
-
Suitable...

This video covers: - Why do things rust? What are the conditions for rusting? - Whats the chemical equation for rusting? - Corrosion experiment - How to prevent rusting by using the barrier method or sacrificial method - What is...

Limiting and Excess Reactants Explained. Often, in chemical reactions there will be less of one reactant that the other - we call this one the limiting reactant because how much reaction can take place. Whereas the more abundant reactant...

In today's video we'll cover:<br/>
- What was<br/>te water is
- The different <br/>sources of waste water
- How we can treat waste water

This video covers the term 'mole', explains 'Avogadros constant', and runs through examples of the sort of calculations you might have to do with moles.



This video is sui
table for:
- H
igher tier only/>- All exam...

This video covers how to find the 'relative formula mass', which is the sum of the relative atomic masses of all the atoms within a molecule or compound. It also covers how to find the the percentage mass of a particular element in a...

This video covers:

- The difference between 'actual yield' and 'theoretical y
ield'
- Why the actual yield may be less than the theoret
ical yield
- How to calculate the pe

rcentage yield


Exam board specific...

In this video we cover: - Oxidation and reduction in terms of oxygen and electrons - Redox reactions - Displacement reactions - Ionic equations - Half equations This video is suitable for: - Higher tier only - All exam boards - Triple...

In this video, you'll learn:<br/>
- The test for detecting c<br/>hlorine gas
- The test fo<br/>r detecting oxygen gas
- Th<br/>e test for detecting hydrogen gas
- The test for detecting carbon dioxide gas

What are alkali metals? Why are they so reactive? What are the trends as you go down the group? How do they react with water, oxygen and chlorine? Learn all this and more!

This video covers: - What fuel cells are - How they work - How to write half equations and full equations for fuel cells - The pro's and con's of hydrogen fuel cells Exam board specific info: AQA - Separate/triple science only IGCSE...

Unlock the mysteries of the respiratory system with this catchy tune! From the nose down to the alveoli, journey through the process that keeps us all alive. Dive into the wonders...

Want to learn about Blood flow, Mitosis, the Respiratory System, or the Digestive System? Well, if you want to do that while also having fun, listen to these biology songs. Learning biology has never been this...

Fats add flavor to food in all sorts of ways - but they can also backfire.

Taking good care of your cast iron (or carbon steel!) cookware starts with understanding the chemistry it relies on.

Dr. Forrester explains the benefits of exercise, proper nutrition, and getting plenty of rest for a young, growing individual.