Mixtures and Solutions Review

Which one of the following statements is true about mixtures & solutions?

• Solutions aren't a type of mixture

• Solutions & mixtures are both easy to separate

• Solutions are a type of mixture

• Solutions & mixtures are both hard or impossible to separate

In a solution one or more substances _________ , or spreads out evenly, into another substance.

• evaporates

• dissolves

• won't mix

• disappears

A solution is always a mixture, but a mixture is NOT always a solution.

• True

• False

How would you separate a mixture of salt & water?

• You can't because it's impossible

• Pour the mixture through a hand strainer to separate the salt from the water

• Heat the mixture for 5 minutes, let it cool, & the salt will float to the top

• Stir together until the salt dissolves into the water, place it on a heating source, & let the water evaporate until the salt is left behind

Look at the recipe cards below. Select ALL cards listing ingredients that are easy to separate.

Also answer if your selections are regular mixtures or solutions.

• 
• 
• 
• My selections are regular mixtures

• My selections are solutions

Which of the following is a combination of substances where the substances keep their original physical properties?

• Solution

• Mixture

What tool below worked best to remove the paper clips from your ocean last week?

• 
• 
• 
• 

Ocean water is a solution.

• True

• False

Tags

NGSS.MS-ESS2-4

Select ALL of the choices that list what happens when a solution is created.

• A new substance is formed when the materials are combined

• None of the combined materials dissolve into one another

• The physical properties of the materials change when combined

• It is hard or impossible to separate the materials once they're combined

Which of the following is NOT just a regular mixture?

• Crayons, pencils, and markers stored in one box

• Trail mix made with fruit snacks, chocolate chips, and

  pretzels

• Eggs cooked in a pan with salt, pepper, and milk

• Rocks and sand stirred around in a bucket