Mixtures and Solutions

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

• a filter funnel
• a sieve
• an evaporating basin
• a distillation

Which one of the following solids is insoluble (not soluble) in water?

• sugar
• sand
• copper sulfate
• salt

The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as

• decanting
•  evaporation
• loading
• chromatography

Which one of the following would you use to separate sand from iron filings?

• a bar magnet
• filter paper
• chromatography paper
• alum

Boiling point is a point at which liquid turns in to..

• solid
• liquid
• molten
• gas

A combination of 2 or more substances that can be easily separated is called- 

• a mixture
• a solution 
• a solute 
• a solvent 

A combination of two or more substances that cannot easily be separated--

• mixture
• solution
• solute
• solvent

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?

• 20 grams
• 0 grams
• 27 grams
• 10 grams

Which of the following is a method of separating solutions?

• hand separation
• filtering
• screening
• evaporation 

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

• hand separation
• Screen
• Magnet
• Evaporation