Light is a very important energy source that keeps us warm and lets us see the world. Light travels in waves in bundles of energy called photons. Those photons contain all seven colors in the rainbow. Grab a prism and check them out!
The classroom resource provides a video that describes light, how it moves, and how it helps us see. This resource can provide background information for students before they construct their own models and carry out their own investigations. There is also a short test that can be used to assess students' understanding.
Light always travels in a straight line until something gets in its way. When that happens, light can be absorbed, reflected (bounced off), or refracted (bent), depending on what kind of surface it hits.
The classroom resource provides a video that will explain how light can move on and through different surfaces. This resource can provide background information for students before they create their own models or conduct their own investigations. There is also a short test that can be used to assess students' understanding.
Light is energy and color is a part of the light. In this video, students will learn more about how light behaves and why we see red.
In this media-rich lesson, students conduct simple experiments to investigate how light travels. They examine the paths that light takes with different materials and observe shadows, reflection, and refraction.
The Sun is a natural source of visible light waves. Our eyes see the reflection of the sunlight off the objects around us. Check out the simulation to learn more about scattering light.
This classroom resource provides a video that will describe the parts of the eye and how they work to allow sight. After utilizing this resource, the students can complete the short test to assess their understanding. This resource will provide background information to students before they create their own models.
This lesson focuses on the idea that we can see objects because they either emit or reflect light. This lesson will lead to a discussion about the way light is reflected, absorbed, and scattered to allow certain wavelengths to reach the eye, leading to a perception of different colors. There are three Science NetLinks lessons in this series on light.
This lesson includes an Internet exploration that focuses on the roles of the eye and brain in the perception of color. It includes an introduction to the anatomy of the eye, including the functions of rods and cones. There are three Science NetLinks lessons in this series on light.