In this science unit, students learn that the primary source of light on Earth is the Sun, the star at the center of our solar system. Students will learn that stars, including the Sun, generate their own light, while objects such as the moon reflect that light. They will also document patterns as they observe the Sun, moon, and stars. The ability to recognize patterns is an important scientific skill that researchers use to develop explanations of observations in nature. Finally, students will design, build, and test a device to protect students from UV radiation on a playground.
Key Terms
Key Terms
- Design Process: A step by step way to solve problems.
- Engineer: A person who is trained to use technology, mathematics, and science to solve problems.
- Engineering: The use of technology, mathematics, and science to solve problems.
- Light: The form of energy that makes it possible to see things; the brightness produced by the sun, by fire, a lamp, etc.
- Moon: The rocky, solid-surface body that orbits the Earth.
- Reflection: The return of light or sound waves from a surface.
- Sketch: A drawing showing the main features of an object.
- Stars: Huge spheres of very hot, glowing gases that produce their own light.
- Sun: The star at the center of our solar system.
- Ultraviolet Radiation (UV): Radiation from the sun that you can’t see or feel. UV radiation can cause skin damage like sunburn and skin cancer.