Anything that has mass and volume can be observed WITHOUT changing the composition of the substance

can only be observed by attempting to change the identity of a substance because a ping pong ball is filled with air, which is less dense than the dense material that fills a golf ball.

density is the amount of matter in a given space Density = Mass (in grams) Volume (in cm ) 3

a) physical b) because… vegetable oil water dawn corn syrup because density always stays the same, regardless of the size or shape

the amount of matter in an object the amount space an object occupies during a chemical change, the matter changes composition because the flavor and composition are the same

Change in color or odor Fizzing or bubbling Light being released Heat or sound being released It will float in the water. The most dense solid is Zinc. (It’s NOT mercury, because mercury is a liquid.) Aluminum, bromine, zinc, mercury

- Ability to rusts in damp air Metal, good conductor, boiling point, melting point, density Souring, decaying, spoiling, rusting, Volume = L x W x H = 2 x 2 x 2 = 8 cm 3 Density = Mass/Volume = 32 grams/8cm = 4 g/cm 3 3

The ability of a substance to be pulled into a wire solubility Thermal conductivity The ability of a substance to be flattened or pulled into sheets state the ability of a substance to be flattened or pulled into sheets