Click the play button below to view a video regarding Earth-Sun Relationships and their effect on sessons.

While viewing the short film, answer the following questions in your notes or on the worksheet located in the "Resources" section. You may need to watch the film more than once in order to answer all of the questions. You will then use your answers to assist you in completing the final assessment for this lesson.

• What is the angle of the tilt of the earth?
• What effect does the tilt have on the earth?
• What would happen if there was no tilt?
• How does the tilt of the earth effect the length of days?
• What is a solstice?
• What is an equinox?
• The winter solstice in North America is December 21st, when is the winter solstice in Australia?
• Why does Pennsylvania experience more extreme forms of the four seasons than does Texas? In other words, why do you see a snowy winter and hot summer in Pennsylvania, whereas in Texas, the temperature change is much less severe?