SCIENCE

Front

A candy bar melts is an example of ....

Back

A solid changing to liquid.

Front

Unit used to measure the mass of an object.

Back

gram

Front

An object sinks when placed in a glass of water because...

Back

it is more dense.

Front

An object that floats in water is ______ dense than water.

Back

less.

Front

Which kind of change alters the form of an object without changing what type of matter it is?

Back

physical change.

Front

What is density?

Back

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

Front

What is a physical change?

Back

A change that alters the form of a substance but not its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is the unit of measurement for volume?

Back

Liter.

Front

What happens to the density of an object when it is heated?

Back

It generally decreases.