Keyword: scale

Compare the size of the Sun and the Earth building and using a pinhole camera.
A game of cards to understand powers of 10 and the very diverse scales in Nature
Learn how to build a model of the Sun...which can fit nearly 1 million little Earth balls!
Discover how to read and draw maps by observing.
Build a scale model of the Solar System on your city map
A virtual journey to space to learn that we live on a tiny planet, in a vast and empty space.
Hands-on activity to measure the Sun by using household materials.