Book 22, Question 51 · Video
How Does the Sun’s Energy Cross Empty Space to Reach Us?
The space between the Sun and Earth is almost completely empty. There is no air to carry heat across it. So how does sunshine get here?
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What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How does the Sun’s energy cross empty space to reach us?
The Big Idea
The space between the Sun and Earth is almost completely empty. There is no air to carry heat across it. So how does sunshine get here?
Almost Empty
Step one: almost empty. The space between the Sun and Earth is almost empty, with no air to carry heat. Sunlight does not need air to travel.
Waves of Light
Step two: waves of light. Sunlight travels as waves of light and other rays that can move through empty space. The trip takes about eight minutes and twenty seconds.
Earth Warms Up
Step three: Earth warms up. When these waves hit Earth, the land, water, and air take in their energy. That makes them warm up.
A Closer Look
Let's take a closer look! The Sun sends out light waves. They cross empty space. They hit land, water, and air. Those things warm up.
Quick Facts
Quick facts! Light from the Sun travels about ninety-three million miles to get here. Remember, the trip takes about eight minutes and twenty seconds. Sunlight does not need any air to travel. When it lands on Earth, the land, water, and air warm up.
Think Like a Scientist
Now, think like a scientist! With a grown-up, hold your hand near a lamp that has been on for a minute. Do not touch the lamp, because it can be hot. Feel the warmth reaching you through the air. Never look straight at the Sun. Share your results with someone you love.
Outro
Sunlight crosses empty space as waves of light and warms everything it touches. Never look straight at the Sun! Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!