Some light can be found in nature like the sun while other light sources are.
What is a light source year 3.
Light is an energy source that travels in waves and we can see these wavelengths of light in different colors.
The next closest star to us is about 4 3 light years away.
In year 3 children begin to fully explore light.
So when we see this star today we re actually seeing it as it was 4 3 years ago.
Stars are found in large groups called galaxies.
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.
The new national curriculum introduced in 2014 requires children in year 3 to understand that they need light to see and that light is reflected from surfaces.
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.
What is a light source.
They will explore shadows and learn how shadows are formed when a light source is blocked by an opaque item.
They discuss what a light source is how most light sources are powered and why different rooms have different numbers of light sources.