Light is an energy source that travels in waves and we can see these wavelengths of light in different colors.
What is a light source year 3.
What is a light source.
So when we see this star today we re actually seeing it as it was 4 3 years ago.
Some light can be found in nature like the sun while other light sources are.
The next closest star to us is about 4 3 light years away.
Notice that light is reflected from surfaces i can identify light sources in our school.
A galaxy can have millions or billions of stars.
All of the other stars we can see with our eyes are farther some even thousands of light years away.
In year 3 children begin to fully explore light.
Stars are found in large groups called galaxies.
They discuss what a light source is how most light sources are powered and why different rooms have different numbers of light sources.
Answered a light source generates light using another form of energy such as heat or electricity.
Children could model how light travels from different sources in a straight line and how light is reflected from certain surfaces changing the direction it travels.