Hypothesis
Warm Up 9/19 1. Suppose you have a sample of an unknown mineral. Its mass is 50 g and it has a volume of 100 cm3. What is its density? 2. Copper has a.
Corrosion
Earth’s Atmosphere! Earth’s Atmosphere!. What is an atmosphere? An atmosphere is the layer of gases that surround the planet. Ours is as thin as Earth’s.
