Ch.1 Introduction to Matter

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What holds atoms together in a molecule?

Back

Chemical bonds.

Front

True or False: A substance that undergoes a chemical change is still the same substance after the change.

Back

False.

Front

True or False: A change that produces one or more new substances is called a physical change.

Back

False.

Front

True or False: To find the mass of a rectangular object, you multiply the object's length, width, and height.

Back

False.

Front

What is a physical change?

Back

A change that does not produce new substances.

Front

What is a chemical change?

Back

A change that produces one or more new substances.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object; weight is the force of gravity acting on that mass.

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

What is the formula for density?

Back

Density = Mass / Volume.