The First Great Lesson

Where did the stars come from? And the Sun? How was our Earth created? And what about the rest of the Universe?

Combining and Separating

Why does sand settle to the bottom of the ocean, but salt mixes in? How do people get sea salt out of the sea?

Crystallization

Could you tell the difference between sugar and salt without tasting them? Have you ever seen a crystal up close? How are crystals made?