History of life on Earth – the evolution Chart Play

How did the atmosphere form? Student activity Play

How do tiny marine plants influence the climate on the Earth? Animation Play

How far away are the stars? Student activity Play

How far away are the stars? Whiteboard exercise Play

How far is the horizon? Student activity Play

How far is the horizon? Whiteboard exercise Play

How gravity affects orbits Simulation Play

How it all started Animation Play

How light travels Student activity Play

How planets reflect light Student activity Play

How planets reflect light Whiteboard exercise Play

How the Moon affects the ocean’s water level Student activity Play

How the Moon affects the ocean’s water level Whiteboard exercise Play

How the structure of our planet is investigated Student activity Play

How to calculate a change in potential energy Whiteboard exercise Play

How to calculate a change in potential energy Student activity Play

How to calculate a change in potential energy near the surface of the Earth Whiteboard exercise Play

How to calculate a change in potential energy near the surface of the Earth Student activity Play

How to measure the speed of light Student activity Play

How to write very big and very small numbers Student activity Play

How were the oceans formed? Student activity Play

Hubble's Law Illustration Play

Hubble's Law Glossary Play

Hubble's Law Whiteboard exercise Play