Madison County Schools / Overview



The Brightness of the Sun and Other Stars

Write the letter of the correct answer on the line at left.

______ 1. Tyrone notices that headlights of a car coming toward him at night seem to change. Which statement best describes how the car headlights appear to change?

A. The headlights seem to get dimmer as the car gets closer.

B. The headlights seem to get smaller as the car gets closer.

C. The headlights seem to get brighter as the car gets closer.

D. The headlights actually get brighter as the car gets closer.

Use the information below to answer questions 2 and 3.

Diane and Betty are making a model of the sun and its atmosphere for a class project.

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2. Diane and Betty wrote a short paragraph that gives information about their model’s layers. Use phrases from the word bank to complete the sentences.

core • corona • photosphere • radiative zone

The sun has three main layers. The layer where the sun's energy is generated is the ____________________. The ____________________ and the convective zone carry that energy to the sun's surface.

Write the letter of the correct answer on the line at left.

______ 3. Diane and Betty labeled the parts of their model. Which label represents the layer of the sun’s atmosphere that can always be seen with the unaided human eye?

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A. Chromosphere

B. Convective zone

C. Corona

D. Photosphere

4. The table shows data about five stars.

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Order the stars based on their distances from Earth. Number the star closest to Earth as “1” and the star farthest from Earth as “5.”

_____ Canopus _____ Arcturus

_____ Rigel _____ Vega

_____ Sirius

Use the information below to answer questions 5 and 6.

The picture shows a fairly common event in our solar system.

[pic]

Write the letters of the correct answers on the lines at left.

______ 5. What does the picture show?

A. a solar eclipse

B. a rock crashing into the sun

C. a solar flare

D. a hurricane on the sun's surface

______ 6. In addition to the solar system event, what else does the picture show?

A. a size comparison of Earth and the sun

B. a comparison of gases on Earth and the sun

C. a comparison of atmospheric layers of Earth and the sun

D. an estimate of the amount of energy that Earth gets from the sun

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