Lesson 10 - Earth and Sun
In this lesson, students will examine how the sun affects life here on Earth. The effects of the sun can be both good and bad. Life on Earth depends on the solar radiation, heat and light that we receive from the sun. Plants use solar energy to make food by the process of photosynthesis. The sun, however, does have a dark side as well. The sun produces types of radiation that can have a detrimental effect on life here on Earth. Solar radiation can cause cancer. Life on Earth would be destroyed by this radiation were it not for the protection our atmosphere and the Earth’s magnetic field.