HMH Unit 5 Nature of Matter Assessment

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

Who proposed that all matter is made of tiny, solid balls called atoms?

Back

Democritus.

Front

Why do we keep milk in the refrigerator?

Back

The reactions that cause milk to spoil are slower at lower temperatures.

Front

What is a solid?

Back

A solid is a state of matter where particles are closely packed together and vibrate in place.

Front

What ingredient dissolves in water when making soup?

Back

Salt.

Front

What is an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance with different properties.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What happens to particles in a solid when heated?

Back

When heated, the particles in a solid gain energy and may begin to vibrate more vigorously.