Forms of Energy: Light Energy – Basic 3 Basic Science Lesson Note (First Term)

Date: ___________
Class: Primary 3
Duration: 40 minutes

Basic science: forms of energy – light energy

What is Light Energy?

Light energy is the brightness that helps us see things. Without light, everything would be dark.

Where Light Comes From

Natural Sources:

• Sun – biggest source of light

• Moon – reflects sun’s light

Stars – twinkle in the sky

• Fire – flames give light

Man-made Sources:

• Electric bulb

• Torch light

• Candle

• Phone flashlight

.

Uses of Light Energy

• Helps us see during the day
• Read books and write
• Cook food safely
• Take photographs
• Grow plants (they need sunlight)

Exercise 1:

1. Name 2 natural light sources: _______, _______
2. Circle the man-made sources: Sun / Bulb / Moon / Torch
3. What happens to plants without sunlight? _________