SCI 7

What are the two classes of matter?

• atom and molecule

• plant and animal cells

• element and compound

• substance and mixture

Which is true regarding air?

• compound of gases

• substance of gases

• element of gases

• mixture of gases

What process is used to separate salt from water in seawater?

• condensation

• distillation

• evaporation

• filtration

What substance is made by mixing two elements without being chemically combined?

• compound

• element

• mixture

• substance

Which is the best way to use separate iron parts from a mixture?

• filter paper

• magnet

• water

• spoon

What substance is considered the solvent in a saltwater solution?

• salt

• water

• both are solvent

• neither substance is a solvent

What substance can dissolve into other substances in a solution?

• solute

• mixture

• solvent

• neither substance is a solvent

What is the substance that is being dissolved in a solution?

• solute

• solvent

• mixture

• solution

Which of the following refers to the solution that contains as much solute as can dissolve at a given temperature?

• solubility

• dilute solution

• saturated solution

• unsaturated solution

Which of the following refers to the solution that contains less solute than can dissolve at a

given temperature?

• solubility

• dilute solution

• saturated solution

• unsaturated solution