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Small Whale · Reading worksheet

Light-emitting diode

High school (ages 12+)
Science & Technology

Name: 

Date: 

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/light-emitting-diode

Step 2 · Questions

  1. 1. What is the scientific principle?

  2. 2. What is the key material for blue leds?

Step 3 · Words to know

Write what each word means, using the article.

  • P-N Junction

  • Band Gap Energy

  • Photon

Step 4 · Two facts in your own words

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

1.
2.
Free to print and copy for classroom use.Light-emitting diode · smallwhale.org/articles/light-emitting-diode · CC BY-SA 4.0