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Light Definition

Light makes objects visible. For example, the sun shines on objects so they are able to be seen.

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Introduction to Light

LESSON MATERIALSmove

Fun Facts

  • We can only see things when light is shined on them or when they make their own light.
  • Light goes through some objects but not others.
  • Light is detected by our eye and then electrical signals are sent to the brain.

Why Do We Need To Know About Light

Learning about light helps us see how important it is in our everyday life and in many jobs. It helps keep us safe at home, and is used in technology and movies. Light is important for jobs like planning for emergencies, making electronics, and creating movies or TV shows.

Light is also important in design. It helps make spaces feel nice. Light is considered when making products because of how it goes through materials. People working in architecture, environmental science, and renewable energy need to understand light because it affects both natural and man-made environments.

Frequently Asked Questions

What are some light sources inside the home?
Some examples of light sources inside a home are lamps, television screens, and candles.
What are some light sources outside the home?
Some examples of light sources outside the home are campfires, headlights, and lightning.
Give examples of light sources that are natural and others made by people?
Some examples of natural light sources are the sun, stars and lightning. Some examples of light sources made by people are flashlights, televisions, cell phone screens, candles and car headlights.
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