Cause of the Seasons

Discover why we have seasons! Learn about Earth's rotation, revolution, and tilt.

8.7A - Rotation vs. Revolution Seasons Watch the video BEFORE answering the questions. It takes the Earth 24 hours to rotate on it's axis. It takes the Earth 365 days to revolve around the Sun. Use the image to answer the following questions. At which location is it daytime? A B AB At which location is it summer? A B AB At which location is it winter? A B AB Click on the blank for the drop-down word bank. The day and night cycle on Earth is caused by the Earth's rotationon its axis. Seasons are caused by the 23.5 degree tilt of the axis and the revolution of the earth around the sun. The hemisphere that is tilted towards the sun experiences summer, while the hemisphere that is tilted away from the sun experiences winter. The varying distance from the Sun to the Earth is notthe reason for the seasons. Use the diagram to identify the seasons. What is the season in the Northern Hemisphere in Position 1. spring summer winter fall Between position 1 2 do the days get shorter or longer? shorter longer What is the season in the Northern Hemisphere during position 2? spring summer winter fall Between positions 2 3 do the days get shorter or longer? shorter longer What is the season in the Northern Hemisphere during Position 3? spring summer winter fall Between positions 3 4 do the days get shorter or longer? shorter longer What season is it in the Northern Hemisphere during position 4? spring summer winter fall