What is true about a solution?

• Solutions are not mixtures.
• Solutions are mixtures.
• All mixtures are solutions.

When you make lemonade, which statement describes the ingredients used in the solution?

• The sugar, lemon, and water all retain their separate properties.
• It becomes a heterogenous mixture.
• Some of the physical properties of the ingredients change.

Tags

NGSS.MS-PS1-2

Which process would be best to use to separate a solution?

• freezing
• condensation
• evaporation
• melting

Tags

NGSS.MS-PS1-4

Which example below is an example of a simple mixture where the ingredients maintain their physical properties?

• sugar and water
• ocean water and sand
• trail mix

Which solids are soluble (can dissolve) in water?

• iron filings and sand

• sand and salt

• salt and pepper

• lemonade powder and sugar

What are some of the processes you can use to separate a mixture?

• magnetism, filtration, and evaporation
• freezing the mixture
• separation, condensation

You know that a substance has dissolved when it-

• becomes a solid
• produces condensation and has water droplets 
• spreads evenly throughout a liquid

Tags

NGSS.5-PS1-3

NGSS.5-PS1-4

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

• a mixture

• a solution

• a solute

• a solvent

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

• Filter

• Screen

• Magnet

• Evaporation

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
• Screen
• Magnet
• Evaporation

Tags

NGSS.3-PS2-4