Mixtures and Solutions Investigation 1 Review

A combination of rocks and water is an example of

• A mixture
• A solution 
• Dissovling

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

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

Which of the following is NOT a mixture?

• sand, salt, and rocks in a bucket
• trail mix made with dried fruit,
  nuts, chocolate drops, and
  pretzels
• water in a glass
• rocks and sand in the ocean

Soup has ingredients in it that dissolve. True or False

• True 
• False

Water and Kool-Aid are mixed together. Hot water, coffee and sugar are mixed together. Which substance is the solvent in both?

• Water
• Coffee
• Kool-aid
• Sugar

Salt dissolves in water like ----

• Pepper dissolves in water
• Sugar dissolves in water
• Rocks dissolve in water
• Seeds dissolve in water

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

• mixture
• solution
• solute
• solvent

The most important rule of any lab investigation is-

• Follow teacher directions
• Wear safety goggles
• Wear an apron 
• Eat the materials

All are solutes except

• sugar
• pepper
• salt
• powdered chocolate 

If I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?

• 20 grams
• 0 grams
• 27 grams
• 10 grams