Science Unit 6 review

The energy that causes seawater to form water vapor comes from - -

• the clouds

• underwater mountains

• the ocean

• the sun

Changes in seasons bring changes in weather. Which of the following BEST explains why winters in most parts of the world are cold?

• The sun's rays hit Earth less directly in the winter.

• Earth rotates farther from the sun.

• The sun is closer to earth in January, February, and March.

• Earth tilts to and from the sun.

Look at the picture above. What would happen if the clouds were taken out of the system?

• The ocean water would get colder.

• There would be more cloudy days.

• There would be no evaporation.

• There would not be any precipitation.

Which of these causes day and night on Earth?

• Earth orbiting the Sun

• The moon orbiting Earth

• Earth rotating on its axis

• The moon blocking sunlight