Reversible and Irreversible Changes

Which of the following is a method of separating solutions?

• hand separation

• screening

• filtering

• evaporation

A ______________ is formed when different substances are combined such that no chemical change occurs.

• solution

• mixture

• solution

• substance

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?

• filter

• magnet

• screen

• evaporation

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Sand and gravel may be separated from each other through using..

• a sieve

• distillation

• a filter funnel

• an evaporating dish

Which of the following objects are soluble in water?

• sand

• oil

• iron fillings

• sugar

A solution is a mixture of one or more substances _________ evenly into another substance.

• carried

• split

• dissolved

• evaporated

What will allow a solution to dissolve faster?

• cold water

• hot water

• warm water

Tags

NGSS.MS-PS1-4

How do you separate a mixture of salt and sand?

• heat the sand and salt and pour through a filter

• pour water in the salt and sand and pour through a paper filter, evaporate the water

• pour water in the salt and sand and use a magnet to separate

• pour through a strainer, add water, evaporate the water

The word "soluble" means...

• not able to dissolve

• able to dissolve

Which material is soluble?

• sand

• iron filings

• spaghetti

• salt