7th P.S. Phy & Chem changes

Front

What happens to particles during freezing?

Back

Particles move slower.

Front

What happens to atoms during condensation?

Back

Atoms move slower.

Front

What do we call two or more substances that are combined but can be separated back?

Back

Mixture.

Front

Which of the following is NOT a physical change: tearing paper, dissolving tablets, evaporation, rusting nail?

Back

Rusting nail.

Front

What is the substance that is being dissolved called?

Back

Solute.

Front

What is the process called when a liquid turns into a gas?

Back

Evaporation.

Front

What do we call a mixture where one substance is dissolved in another?

Back

Solution.

Front

What is the term for the ability of a substance to dissolve in another substance?

Back

Solubility.

Front

What happens to the energy of particles when they freeze?

Back

Energy decreases.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.