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Mercury is the closest planet to the sun. Mercury

is named after a Roman god. A year on Mercury lasts 88 earth days. Mercury completes a rotation once every two years. Therefore, Mercury has only one day in two earth years! A day on Mercury is twice as long as a year on Earth!
Mercury is the smallest planet in our solar system. Mercury is rocky.The rocks make this planet gray. Mercury has craters. Craters make it look like the moon. The craters are caused by comets and asteroids. Mercury has no rings or moons. The temperature on Mercury varies. It can be as cold as -280 degrees Fahrenheit at night. It can be as warm as 800 degrees Fahrenheit during the day.There is no atmosphere. This means that there is no weather on Mercury.Two spacecraft have visited Mercury. In1970, Mariner 10 flew by Mercury. Mariner 10 took pictures. These pictures helped us understand Mercury's surface, atmosphere, and temperature.In 2004, Messenger flew around Mercury more than 4,000 times. It mapped the planet. This spacecraft also discovered ice on Mercury.Messenger ran out of fuel. It crashed into the planet.We still have a lot to learn about Mercury. You can see Mercury from earth at times. The best times to look are morning or evening.
Answer the following questione Underline the text evidence in the color indicated I What is the topic of this text?
a. Space
b. Mercury
c. Planets in our solar system
d. Mercury and Earth
2. Which sentence best tells the main idea of this text?
a. Mercury is closest to the sun.
b. Two spacecraft visited Mercury.
C.
There is a lot to learn about Mercury.
d.
Planets are interesting to learn about.
3. What details helped you determine the main idea?
4. What is the main idea of paragraph 2? a.
b.
C.
d.
What Mercury looks like and its climate.
Mercury looks similar to the moon.
Mercury's temperature can be very cold or very hot.
Mariner 10 took photographs of Mercury.
5. What is the main idea of paragraph 3?
6. Which supporting detail could be added to paragraph 3? a.
Mercury has no moons or rings.
b. Mercury has a large iron core.
C.
In the future, NASA hopes to send more missions to Mercury.
d.
Mercury has a thin atmosphere that cannot trap heat.

1 answer

  1. What is the topic of this text?
    b. Mercury

  2. Which sentence best tells the main idea of this text?
    c. There is a lot to learn about Mercury.

  3. What details helped you determine the main idea?
    Details such as "We still have a lot to learn about Mercury” and the information about the spacecraft that visited Mercury support the idea that there is much to discover about the planet.

  4. What is the main idea of paragraph 2?
    a. What Mercury looks like and its climate.

  5. What is the main idea of paragraph 3?
    The main idea of paragraph 3 is that two spacecraft have explored Mercury, providing valuable information about the planet.

  6. Which supporting detail could be added to paragraph 3?
    c. In the future, NASA hopes to send more missions to Mercury.

This detail would further emphasize the ongoing interest and exploration of Mercury.