8.7 (A) Rotation / Revolution

In this diagram, the Northern Hemisphere would be in what season at Position A?

• Fall

• Spring

• Summer

• Winter

Answer explanation

In the northern hemisphere it is summer when the earth's axis points towardd the sun.

What is one possible advantage of this model?

• The flashlight and globe show how Earth´s rotation causes day and night.

• The flashlight and globe are scale-sized models of the sun and Earth.

• The model shows the amount of sunlight that shines on Earth.

• The actual distance between the sun and Earth is represented.

Early scientists believed the sun revolved around Earth. What do modern scientists believe about the revolution of the sun and Earth?

• Earth revolves around the sun, causing day and night.

• Earth revolves around the sun, causing seasons, as well as day and night.

• Earth revolves around the sun on a tilted axis, causing a change in seasons, and Earth rotates on its axis, causing day and night.

• Earth revolves around the sun, causing day and night, and Earth rotates on its axis, causing a change in seasons.

Which diagram reflects daytime hours for Position X?

• 
• 
• 
• 

Which is the best conclusion based on the information in the table?

• Distance from the sun is a major cause of the seasons of Earth.

• The distance between Earth and the sun does not affect Earth's seasons.

• The temperature in the Northern Hemisphere decreases as Earth's distance form the sun increases.

• The temperature in the Southern Hemisphere increases as Earth's distance form the sun increases.

In the diagram below, Earth's Southern Hemisphere is experiencing-

• Summer

• Winter

• Spring

• Fall

A student explains the movement on earth in relationship to the sun. Which statement provides the best illustration?

• A key turning in a lock.

• A person spinning a soccer ball on one finger while standing in place.

• An amusement park ride with cars turning as they move around the center.

• A car driving down the road with all wheels rotating.

Answer explanation

A models rotation

B also models rotation

C cars are moving around a center

D all four wheels are rotating in place and not around a center.

Which best explain the changes in the seasons?

• Seasons change as a result of high temperatures caused by Earth's tilt and revolution around the sun.

• Seasons change as light from the sun hits atmosphere and as Earth rotates around the sun.

• Season change as a result of the temperature the creasing because of Earth's revolution around the sun.

• Seasons change due to the amount of sunlight hitting Earth and Earth's tilt as it revolves around the sun.

Which term best completes the analogy in the box?

• Night

• Orbit

• Year

• Sun

What information belongs in section B of the diagram?

• Causes seasons

• Causes day and night

• Movement of Earth

• None of the above