Science Review Matter

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What happens to the mass of water when it freezes into ice?

Back

The mass remains the same; ice weighs the same as the water it was made from.

Front

What is the melting point?

Back

The melting point is the temperature at which a solid becomes a liquid.

Front

What is the relationship between mass and weight?

Back

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

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 is the principle of conservation of mass?

Back

The principle states that mass is neither created nor destroyed in a chemical reaction.

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

What happens to the state of water when it is heated?

Back

When heated, water changes from a solid (ice) to a liquid (water) and then to a gas (steam).

Front

What is an example of a solid turning into a liquid?

Back

An example is ice melting into water.