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Light Source Definition

A light source is an object that emits, or gives off, light. For example, a campfire is a light source.

View Lesson on Introduction to Light
Grades K-2 VideoIntroduction to Light player orange
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Introduction to Light

LESSON MATERIALSmove

Fun Facts

  • Sun is Earth's main source of light.
  • Lightning is a natural light source.
  • Flashlights are made by people to give off light.

Why Do We Need To Know About Light Source

Learning about light sources helps us understand how important they are in our daily lives and why many jobs need this knowledge. Light is important for keeping us safe and helping us see in our homes. It’s also key in making products that make our lives better and safer when it’s dark. Light is not just for seeing your family or finding food; it’s for making places comfy and useful.

Also, knowing about light sources is important in careers like electronics, interior design, environmental science, and emergency services. Knowing how light works with different things helps experts make better living spaces for us. This shows how necessary light is in everyday uses and advancing technology.

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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