.3a Mixtures and Solutions

A mixture is the result of a physical change because...

• The parts can be separated
• A new substance is made
• There is a chemical reaction
• One part of the mixture disappears

You know that a substance has dissolved when it-

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

To separate a mixture of salt and water what separation tool/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

Substance dissolved in a solution

• concentration
• solute
• solvent
• solution

Tags

NGSS.HS-PS1-5

Capable of being dissolved

• Soluble
• concentration
• colloid
• molarity

This type of mixture has large enough particles that you can see the different types of particles.

• Homogeneous

• Heterogeneous

• Colloid

• Solution

A colloid mixture does not have particles large enough to settle to the bottom, but they are large enough to

• be filtered out of the solution.

• be pulled out by hand.

• float to the top.

• scatter light waves.

Tags

NGSS.MS-PS4-2

A mixture with such small particles that you cannot see the individual particles.

• Suspension

• Sublimation

• Heterogeneous

• Homogeneous

Which of the following examples is a Homogeneous mixture?

• Tap Water

• Beach Sand

• Chocolate chip cookie

• Mud water