Matter Review 8th Grade

Front

What happens to the mass of ice cubes when they are heated to boiling in a closed container?

Back

The mass will stay the same.

Front

Which substance is a good conductor of electricity?

Back

A copper penny.

Front

What is the independent variable when testing for maximum balloon pressure before bursting?

Back

Pressure.

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

If a plastic toy has a mass of 100g and a volume of 10mL, what is its density?

Back

10 g/mL.

Front

Which state of matter has the least kinetic energy?

Back

Solid.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What are the three states of matter?

Back

Solid, liquid, gas.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is the boiling point of water at sea level?

Back

100 degrees Celsius.