Objective: Children will use colored paper to investigate the effects of the Sun’s ultraviolet rays.‹ Return to Theme
Note: This activity requires taking the children outside to a sunny location.
The Sun sends out heat and light to the Earth. Without the Sun, life on Earth would not be possible. Part of the light from the Sun contains invisible ultraviolet (UV) rays. Even though we cannot see them, UV rays are very strong. They can cause damage to many things if they are not protected; in this lesson, UV rays caused the colors in the paper to fade. We all need some Sun exposure to get our supply of Vitamin D. It does not take much time in the Sun for us to get the amount of Vitamin D we need. Like the colors in the paper fading, the Sun’s rays can cause damage to our skin and our eyes. In order to enjoy the Sun, you need to protect your skin and eyes from the damaging rays of the Sun. Adults can help children by making sure they are wearing sunscreen, sunglasses, clothing to cover the body, and a hat.
The amount of UV light that reaches the Earth depends on the time of day, the season of the year, how close you are to the equator, and exposure time. The Sun is strongest between 10 A.M. and 4 P.M. UV rays from the Sun reach the Earth every day, but exposure is greatest in the summer. Locations nearer to the equator have the greatest exposure to UV rays and get less exposure the farther they are from the equator. Exposure time is greater the longer you are out in the Sun.
These lessons are aligned with the Common Core State Standards ("CCSS"). The CCSS provide a consistent, clear understanding of the concepts and skills children are expected to learn and guide teachers to provide their students with opportunities to gain these important skills and foundational knowledge.
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There are currently no Common Core Standards for pre-k, but these lessons are aligned as closely as possible to capture the requirements and meet the goals of Common Core Standards. However, these lessons were neither reviewed or approved by the National Governors Association Center for Best Practices or the Council of Chief State School Officers, which together are the owners and developers of the Common Core State Standards.