Mixtures and Solutions

A combination of 2 or more ingredients where each keep their own physical properties and can be easily separated.

• solution
• dissolve
• mixture
• saltwater

A mixture of one substance evenly dissolved in another.

• mixture
• property
• density
• solution

A science class performed an investigation by evaporating a solution containing 10g of salt and 50ml of water.  How much salt would you expect to find in the cup at the end of the investigation?

• 60g
• 50g
• 10g
• 5g

Which example below describes a simple mixture where the ingredients maintain their physical properties?

• bucket of saltwater and sand
• peanuts, raisins, and chocolate pieces
• sugar and water
• all of the above

You have the following solids in a lab: salt, sand, lemonade powder, and pepper.  Which solids will dissolve in water to create a solution?

• pepper, sand, and salt
• salt, lemonade powder, and sand
• salt and lemonade powder
• pepper and sand

What tool can you use to separate a mixture of rocks and sand the fastest? 

• sieve
• tweezers
• magnet
• hands

What tool can you use to separate a mixture of sand and water?

• hands
• filter
• tweezers
• craft stick

characteristics that can be used to classify matter

• mixture
• solution
• solute
• physical property

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.MS-ETS1-2

When making fudge on the stove the spoon in the pan becomes very hot.  why?

• The Spoon is too short for the pan
• A spoon is a poor conductor of heat
• A spoon is a good insulator
• A spoon is a good conductor of heat

Tags

NGSS.MS-PS3-3