Separating Solutions

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

• sugar

• sand

• coffee

• salt

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

• sorting

• evaporation

• filtration

• magnetism

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

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

Soup has ingredients in it that dissolve. True or False

• True 
• False

Tags

NGSS.MS-PS1-2

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

• mixture
• solution
• solute
• solvent

When we combined the sand and water together, it formed a _________.

• mixture
• solution

We were able to separate the salt water solution.

• True
• False

In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

• stir the powder in the liquid
• freeze the mixture
• add more powder to the liquid
• store the mixture in a dark place

Tags

NGSS.HS-PS1-5

Which tool is best used to separate gravel and water?

• Filter
• Screen
• Evaporation

Which mixture can best be separated by using a filter?

• salt and water
• powder and water
• gravel and water