Sound, Light and Heat

Sound energy

How is sound produce? Watch and learn.

This time watch to learn in which medium does sound travel.

  

How does light travel? Watch and learn about light.

Light can reflect or refract depending on the surface it hits. Watch and learn about it in this video.

Look at this nice experiment about colours.

Practice your learning with these on-line worksheets

• Energies
• Light energy
• Light energy I