What Is A Light Source Year 3

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.