Reading Rainbow

In what way do scientists think differently about rainbows than most people?

• Scientists are not excited when they see rainbows.
• Scientists think it is silly to try to learn anything from rainbows.
• Scientists can learn a lot about light from rainbows.
• Scientists wish they could write poems about rainbows.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

The back of a water droplet acts as a mirror. When light hits the back of the water droplet, it bounces back to our eyes. This is called:

• Refraction
• Evaporation
• Conduction
• Reflection

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NGSS.MS-PS4-2

The word perceive in this passage (paragraph 7) means:

• Think about
• Read
• See
• Understand

Complete this analogy: Moon is to moonbow as _____ is to rainbow.

• Water
• Sun
• Sky
• Earth

Which of the following words best describe the diagram?

• Refraction
• Reflection
• Light energy
• Rainbow

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NGSS.MS-PS4-2

What are the two main characteristics of light demonstrated by rainbows?

• Absorption and emission
• Refraction and reflection
• Conduction and evaporation
• Transmission and scattering

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NGSS.MS-PS4-2

Why do water droplets in the air need to be spherical for a rainbow to form?

• Spheres reflect all light equally.
• Spheres magnify the light.
• Spheres allow light to bend and separate into colors.
• Spheres stop light from being absorbed.

What happens to light when it passes into a water droplet?

• It slows down and bends.
• It speeds up and remains straight.
• It scatters in all directions.
• It absorbs into the droplet.

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Why are the colors of a rainbow always arranged in the same order?

• The speed of light changes with the color.
• Refraction separates colors in a fixed sequence.
• Water droplets only reflect specific colors.
• The sun's angle affects the color order.

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NGSS.MS-PS4-2

What is the difference between a primary rainbow and a secondary rainbow?

• A primary rainbow has brighter colors, while a secondary rainbow has no colors.
• A primary rainbow is only visible after rain, while a secondary rainbow is visible at night.
• A secondary rainbow has more colors than a primary rainbow.
• A secondary rainbow is a mirror image with dimmer colors.

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