In year 3 children begin to fully explore light.
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.
What is a light source.
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.
Answered a light source generates light using another form of energy such as heat or electricity.
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.
Notice that light is reflected from surfaces i can identify light sources in our school.
Though aimed at older children the idea of modelling light using a ribbon and other techniques used in this short demonstration could be used in year 3.
So when we see this star today we re actually seeing it as it was 4 3 years ago.
All of the other stars we can see with our eyes are farther some even thousands of light years away.
Stars are found in large groups called galaxies.
A galaxy can have millions or billions of stars.
They will explore shadows and learn how shadows are formed when a light source is blocked by an opaque item.