Solutions and Mixtures

Mrs West is experimenting with solutions. She takes a large beaker of distilled water and dissolves salt, and then sugar. Has she created a solution or a mixture?

• Solution

• Mixture

Answer explanation

A solution is a homogeneous mixture made of a solute dissolved uniformly in a solvent.

Ms West is still experimenting with solutions. She takes a large beaker and dissolves salt and then sugar. Identify the solute(s) and solvent(s).

• Salt and sugar are the solutes/water is the solvent.

• Salt and sugar are the solvents/water is the solute.

Which component makes up the majority of a solution?

• liquid

• solute

• solvent

• neither; Solutions are always half solute and half solvent.

If someone is stirring tea to mix sugar into it, which of the following rate factors are they using?

• temperature

• agitation

• particle size

• solubility

In an experiment trying to dissolve sugar in water, a person boils water in a pot on the stove and then puts the water and the sugar in a cup. That person times how long it takes to dissolve the sugar.

Which of the following factors is this person testing?

• particle size

• solubility

• agitation

• rate of dissolving

When substances are mixed together, they retain their physical properties.

• True

• False

Tags

NGSS.MS-PS1-2

Physical properties of a substance can be used to separate mixtures?

• True

• False

The secret code word if asked is DENSITY.

• DENSITY

• not this

• not this

• not this