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?
Course Category: Properties of Matter
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?
Different Properties at Different Temperatures
Do liquids all freeze at the same temperature?
Particle Behavior – Solids, Liquids, and Gases
What are the differences between ice, water, and steam? What are the similarities between water, juice, and milk?
Force Direction of Solids, Liquids, and Gases
What is a force? Do we have force? Do solids have force? What about liquids and gases?