1st Semester Science Review

When should safety goggles be worn?

• at all times in the lab

• when you feel like it

• when liquids could splash into your eyes OR when using glassware

Weathering is......

• rocks, grass, and mud.

• the breakdown of rocks into smaller pieces

• the breakdown of wind, rain, and friction

• the weather outside

What is the most important job of the earthworm?

• food for people

• to fertilize and mix up soil

• as bait to catch fish

A combination of two or more substances that can be easily separated.

• dissolve
• mixture
• solution
• physical property

One or more substances dissolve in another and cannot be easily separated.

• mixture
• solution
• dissolve
• solute

If you pour sugar into hot water the sugar will

• disappear
• evaporate
• dissolve
• expand

Which of the following would be considered a mixture? 

• lemonade
• sweet tea
• trail mix

A salad would be considered a _____________. 

• mixture
• solution

This is an example of a

• Solution

• Mixture

Matter that has its own shape and takes up space.

• solid
• liquid
• gas