Lesson 3 Review Earth and Solar Energy

Half of the sunlight entering Earth’s atmosphere reaches Earth’s surface. What happens to the rest?

• It returns to the sun.

• It is absorbed or reflected by the atmosphere.

• It is absorbed and stored in the global oceans.

• It is reflected to the moon, causing the moon to appear bright.

Sunlight is made of different wavelengths of energy. Shorter wavelengths

• are less powerful than longer wavelengths.

• • travel less distance than longer wavelengths.

  
  

• carry more energy than longer wavelengths.

• make up the bulk of all sunlight reaching the atmosphere.

The waves of sunlight most important to weather are

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• laser, mechanical, and magnetic.

• gamma, x-ray, microwave, and radio.

• the longest waves that can reach the atmosphere.

• ultraviolet light, visible light, and infrared light.

Visible light is the form of light you can see. What does it include?

• • the longest wavelengths of light

  
  

• • bright rapid flashes of energy

  
  

• • every color of the rainbow

  
  

• gamma rays that bombard Earth’s surface

Earth is sometimes called a “Goldilocks Planet.” Why?

• 
  

• It is the only planet in the solar system that can grow the ingredients for porridge.

• Its temperature is not too hot, not too cold, but just right to support life.

• Earth orbits around the sun, much like how Goldilocks visits the bear family.

• The sun is like Papa Bear, Earth is like Mama Bear, and the moon is like Baby Bear.

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________ are gases in the atmosphere that absorb the energy of infrared light.

• Greenhouse gases

• Helium and argon

• Nitrogen and neon

• Solar gases

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The greenhouse effect warms up the atmosphere, which in turn, warms up what?

• clouds

• deep space

• Earth's surface

• the area between Earth and the moon

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Sunlight travels in straight lines called

• beams.

• rays.

• rods.

• spears.

Which statement is true?

• • Sunlight is less concentrated at different latitudes.

  
  

• • Sunlight has no effect on weather.

  
  

• Sunlight warms all locations the same amount.

• Sunlight is weakest near the equator and strongest near the poles.

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The amount of sunlight during the day depends on

• the time of day.

• • whether cloud cover is thin or heavy.

  
  

• the angle at which the sun's rays strike Earth's curved surface.

• how much light is reflected from the moon and combined with sunlight.

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