Light Waves vs. Sound Waves

• Science
• Primary Education
• Age 8

Light Waves vs. Sound Waves

Learning Objective

At the end of the lesson you should be able to compare and contrast light waves and sound waves.

Introduce the objective to the students and explain why it's important to learn about waves.

What do you already know about the differences between light waves and sound waves?

What are Waves?

Waves are a disturbance that travels through space and time.

Introduce the concept of waves and provide examples of waves in everyday life.

Explore  (video)

1. What are light waves?

2. What are sound waves?

3. Compare and contrast sound waves and light waves 

4. What else you can add 

https://youtu.be/69h5d51Q8Yc

Compare and contrast sound waves and light waves

Light Waves

Light waves are a type of electromagnetic wave that travel at a speed of 299,792,458 meters per second.

Explain the characteristics of light waves and provide examples of how light waves are used in technology.

Sound Waves

Sound waves are a type of mechanical wave that require a medium to travel through, such as air or water.

Explain the characteristics of sound waves and provide examples of how sound waves are used in technology.

Comparison

Light waves travel much faster than sound waves and can travel through a vacuum. Sound waves travel at a slower speed and require a medium to travel through.

Explain the differences between light waves and sound waves and provide examples of how they are used differently.

Review

What are the characteristics of light waves? What are the characteristics of sound waves? How do light waves and sound waves differ from each other?

Review the main points of the lesson and provide an opportunity for students to ask questions.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.