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I. Multiple Choice: Choose the letter that corresponds to the correct answer.



_____ 1. Which of the following is the only star in the solar system?



a. Asteroid

b. Comet

c. Moon

d. Sun



_____ 2. How many days does it take for Earth to complete one revolution around the sun?



a. 364 days

b. 365 days

c. 365 ¼ days

d. 366 days



_____ 3. Why are babies exposed to early morning sunlight?



a. Sunlight helps babies make food.

b. Sunlight helps the body grow more hair.

c. Sunlight helps the body produce Vitamin A.

d. Sunlight helps babies in the proper development of bones and teeth.



_____ 4. Which object is used to harness energy from the sun?



a. Barometer

b. Thermometer

c. Solar panel

d. Battery



_____ 5. Why do you need to drink lots of water during hot days?



a. To avoid sunburn

b. To avoid dehydration

c. To make skin wet

d. To make hair grow longer









_____ 6. What is the visible layer of the sun called?



a. Corona

b. Chromosphere

c. Photosphere

d. Sunspot



_____ 7. What is the relatively dark area of the sun called?



a. Chromosphere

b. Sunspot

c. Sun’s flares

d. Photosphere



_____ 8. These are the carried remnants of the sun’s magnetic field.



a. Solar energy

b. Solar wind

c. Solar system

d. Solar power





Sagot :

Answer:

1. C

2. B

3. D

4. C

5. B

6. A

7. A

8. A

Answer:

1. D. Sun

2. B. 365 days

3. C. Sunlight helps the body produce vitamin A.

4. C. Solar Panel

5.B. To avoid dehydration

6. C. Photosphere

7. B. Sunspot

8. B. Solar wind

Explanation:

1.The Sun is the only star in our solar system

2. Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds. The time a planet takes to revolve around the sun is called a year.

4. A photovoltaic cell absorbs light and converts it directly into electricity. A group of photovoltaic cells is known as a Solar Panel. You may have seen solar

6.The photosphere is the deepest layer of the Sun that we can observe directly.

7.Sunspots are areas that appear dark on the surface of the Sun.

8.The sun's magnetic field has two poles, like a bar magnet. The poles flip at the peak of the solar activity cycle, every 11 years. A solar wind composed of charged particles carries the magnetic field away from the sun's surface and through the solar system.