Science Ch 7

Earth's atmosphere is mainly made up of

• nitrogen and oxygen

• nitrogen and helium

• helium from a basketball

Sleet and hail are types of

• kool-aid

• precipitation

• air pressure

What is the energy source that drives the water cycle?

• the Moon

• plants

• the Sun

During the water cycle, water moves

• North and South

• between plants and soil

• between Earth and the air.

Global winds move air

• from Mrs. Bush's class to the playground

• between the equator and the poles

• from the Wood gym to the Slim gym

• around the equator

A hurricane forms

• when two oceans are mad at each other

• when there's too much water in the ocean

• over warm ocean waters

Which best describes a tropical climate?

• warm and cold

• rainy and snowy

• hot and humid

a. warm air slides over cold air

b. layers of clouds form

c. brings light, steady rain

These describe a(n) __________________

• Cold Front

• Warm Front

• Blizzard

• Earthquake

Steps:

1. Water vapor rises and cools

2. ?

3. dew appears on grass

What belongs in step 2?

• water boils

• snow

• gas changes to liquid

Which tool measures wind speed?

• anemometer

• thermometer

• a piece of paper