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3rd Grade Science Core
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Heat and Light From Machines

Some mechanical and electrical machines not only produce heat, but they also produce light. What are some machines that produce light?

Look at the pictures below. They are all machines that produce heat, but some of them also produce light. Click on the correct button for each picture!










Check your answers! Highlight the box below and see how many you got right.
1. Produces Light, 2. Produces Light, 3. Does NOT Produce Light, 4. Does NOT Produce Light, 5. Produces Light, 6. Produces Light, 7. Does NOT Produce Light

Close your eyes and try to think of at least five light producers in your home or classroom. Now open your eyes and look around. How many more can you see? Can you add at least five more to your list? Compare your list with the items below.

In your school:

  • Overhead projector
  • Television
  • Computer
  • Aquarium
  • Exit sign
  • Lights
  • Phone
  • Calculator
  • Sunlight
  • Flashlight

At home:

  • Refrigerator
  • Stove
  • Toaster
  • Dishwasher
  • Microwave
  • Television
  • Digital clock
  • Sunlight
  • Computer
  • Flashlight
  • Car lights
  • CD player

Download the plug-ins: Get Adobe Acrobat Reader, and Get Quicktime Player. (The QuickTime plug-in is needed to play sounds and movies correctly.)

Want to share photos of you or your friends doing this activity? Send it in an e-mail with the following information:

  1. The title of the activity
  2. The URL (Internet address)
  3. Your name.

Remember that no pictures can be used that show student faces or student names on it. 

Teachers should view the Teacher Site Map to relate Sci-ber text and the USOE 3rd grade science core.

Updated October 24, 2008 by: Glen Westbroek

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