7th Grade Science Semester One

Front

What effect does increasing the surface area of a solute have on the rate of dissolution in an aqueous solution?

Back

It increases the rate of dissolution.

Front

In a Kool-aid mixture, which component is the solvent?

Back

Water.

Front

What is the term for a substance that dissolves in a solvent?

Back

Solute.

Front

If a car travels 400 m in 20 seconds, what is its speed?

Back

20 m/s.

Front

What is a crucial step in an experiment to determine how temperature affects the rate of dissolution of sugar in water?

Back

Keep the amount of water constant for each trial.

Front

Define 'dissolution' in the context of chemistry.

Back

The process of a solute dissolving in a solvent.

Front

What is a saturated solution?

Back

A solution that cannot dissolve any more solute at a given temperature.

Front

What is an unsaturated solution?

Back

A solution that can still dissolve more solute at a given temperature.

Front

What is a supersaturated solution?

Back

A solution that contains more dissolved solute than a saturated solution at the same temperature.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.