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100

What is a mixture?

A mixture is a combination of 2 or more substances. 

100

Define filtration

The process of separating substances with a filter 

100

Define evaporation

Is the change from a liquid into a gas

100

Define condensation

is the process of a gas changing into a liquid

200

What process could you use to separate lemon seeds from lemon juice in a mixture?

sieve or filtration

200

How could you separate safety pins from sand?

magnet

200

How could you separate sand from water?

by filtration 

200

How could you separate the marbles from a mixture of sand and salt?

by picking them out, by sieve, or by a spoon

300

If table salt and sugar are mixed together, what will be two physical properties of the mixtures?

The mixture will have white crystals and will taste both sweet and salty.

300

How could you separate water from sand?

By evaporation

300

in a salty water, what is the solvent?

water

300

What is the solute and the solvent in a solution of sugar water?

solute: sugar

solvent: water

400

Why can't you see the separate particles of a solute in a solution?

Because the solute has broken into very small particles.

400

Why does sugar dissolve more quickly in hot water than in cold water?

Solubility varies with temperature. Raising the temperature of the solvent can speed up the process of dissolving the solute. 

400

Why would grinding a solute allow the solute to dissolve more quickly?

Grinding the solute allows more of the solute to be in contact with the solvent, allowing the solute to dissolve faster. 

400

What is solubility?

IT is the ability of one substance to dissolve in another.

500

What is the difference between a solute and a solvent?

A solute is the substance that dissolves. A solvent does the dissolving. 

500

How could you separate the mud?

filtration to separate the large particles, and then evaporate the water so dirt is left.

500

How are a solute and solvent alike and how they are different?

Both are part of a solution. A solute dissolves in a solvent. 

500

What do we call the water on the outside of a cool glass of water on a warm day?

condensation