Water at 20°C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly? OPTIONS:
- Cover it.
- Heat it.
- Place it in the dark.
- Put salt in it.
A: Heat it.

A glacier is a slow moving river of ice. How does a glacier help create soil? OPTIONS:
- It scrapes small particles off large rocks.
- It carries plants down mountains and to oceans.
- It melts and becomes part of streams and rivers.
- It freezes small particles of dirt to form large rocks.
A: It scrapes small particles off large rocks.

A salvage yard contains a mixture of iron, glass, aluminum, and plastic. Which property of iron does the salvage yard take advantage of when separating the iron from the rest of the materials? OPTIONS:
- magnetic
- electrical
- ductility
- malleability
A: magnetic

You wish to closely observe a small insect. Which tool is the best to use? OPTIONS:
- a balance
- a test tube
- a telescope
- a magnifying glass
A:
a magnifying glass