Rocks, Bodies of Water, Resources

Students collected a group of rocks.
All of the rocks the students collected –

• have very sharp edges.
• are the same color.
• are different sizes.
• have the same texture.

Which of the following could be used to describe the texture of a rock?

• Heavy
• smooth
• black
• small

Students group rocks into three groups; large medium and small. The students are sorting by which of the following characteristics?

• texture
• color
• hardness
• size

Which of these is the largest source of salt water?

• rivers
• lakes
• oceans
• streams

All of these can be sources of fresh water EXCEPT -

• rivers.
• oceans.
• lakes.
• steams.

Fresh water flows from the tops of mountains and hills downward in moving bodies of water known as -

• ponds.
• oceans.
• rivers.
• lakes.

An ocean is larger than a lake. Another difference is that only lakes have -

• small waves.
• small fish.
• green plants.
• fresh water.

What source of water covers most of the Earth’s surface?

• Lakes
• Rivers
• Streams
• Oceans

All of the following are natural resources EXCEPT -

• rocks
• soil
• plastic
• water

A resource is a material people use. Some resources are manmade, while others are natural. Manmade resources are special because these resources are —

• difficult to find.
• grown on farms.
• created by humans.
• formed underground.