Mixtures and Solutions

Front

How do you know that a substance has dissolved?

Back

It spreads evenly throughout a liquid.

Front

If I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?

Back

27 grams

Front

Mixtures are combinations of two materials that retain their physical qualities.

Back

True

Front

Method of separating solutions: hand separation, filtering, screening, evaporation

Back

evaporation

Front

A combination of 2 or more substances that cannot be easily separated is called:

Back

a mixture

Front

To separate a mixture of salt and water, what separation tool/method is used?

Back

Evaporation

Front

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in? Options: Filter, Screen, Magnet, Evaporation

Back

Magnet

Front

Trail mix, with nuts, raisins, pretzels and candy pieces is a good example of a mixture.

Back

True

Front

Back

True

Front

Which of the following will NOT dissolve in water? Options: salt, rocks, apple juice

Back

rocks