What is Light and heat?

Light and heat are things you can see and feel, just like when you play outside on a sunny day.

Light is like the sun’s message to you. When it shines, it travels in straight lines, like arrows, until something catches it, like your eyes or a wall. That's why you can see things around you: because light bounces off them and goes into your eyes.

Heat is how warm or cool something feels. Imagine holding a cup of hot chocolate in winter, that’s heat moving from the cup to your hands. The sun also sends out heat, which makes you feel cozy on a cold day.

Sometimes light and heat work as a team! When the sun shines, it sends both light and heat to Earth. That's why you can see the sun and feel warm at the same time, like getting a hug from the sky. Light and heat are things you can see and feel, just like when you play outside on a sunny day.

Light is like the sun’s message to you. When it shines, it travels in straight lines, like arrows, until something catches it, like your eyes or a wall. That's why you can see things around you: because light bounces off them and goes into your eyes.

Heat is how warm or cool something feels. Imagine holding a cup of hot chocolate in winter, that’s heat moving from the cup to your hands. The sun also sends out heat, which makes you feel cozy on a cold day.