True or False: saltwater is a mixture

True or false: freezing water is a chemical reaction

True or False: You have matter

True or False: In the chemical reaction of metal rusting, water is a reactant

List the different states of matter and explain how they're different. Give an example of each.

If you were on the moon, how would that affect your matter and mass?

Explain an example of a chemical reaction. What is the reactant, and what is the product?

A bowling ball and a tennis ball are dropped from a building at the same time with the same amount of force.  Which ball is hitting the ground first? The bowling ball or tennis ball? 1.PS.1

the movement of energy caused by vibrations. 1.PS.2

how high or low a sound is

rapid back and forth movement of matter that produces sound.