Study for the Matter Test

Front

What happens when baking soda is mixed with vinegar?

Back

It produces a gas (carbon dioxide) that fills the balloon, causing it to expand.

Front

What is a physical change?

Back

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 change that results in the formation of new chemical substances.

Front

What is the best method to separate a mixture of sand and iron filings?

Back

Stir with a magnet to attract the iron filings.

Front

What is the best method to separate sugar from water?

Back

Evaporate the water to leave the sugar behind.

Front

What is an example of a reversible change?

Back

Melting ice into water, which can be frozen back into ice.

Front

What is an example of a non-reversible change?

Back

Burning wood, which creates ash and smoke.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

What is a mixture?

Back

A combination of two or more substances that retain their individual properties.