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Question 0

Early astronomers believed that the sun the moon and the stars revolved around___

Answer 0

Earth

Question 1

Large bodies that orbit a star are ___

Answer 1

Planets

Question 2

The sun and all of the planets moons and other bodies that travel around it make up the___

Answer 2

Solar system

Question 3

The closest planet to the sun is ___

Answer 3

Mercury

Question 4

Mercuries density is about the same as _____ density

Answer 4

Earths

Question 5

Venus rotates in a direction ____ that of earths rotation

Answer 5

Opposite

Question 6

A day on Venus is longer than its___

Answer 6

Year

Question 7

Temperatures on Venus are very high due to a strong____

Answer 7

Green house effect

Question 8

Earth is the ___ planet from the sun

Answer 8

Third

Question 9

Earth is the only planet in the solar system known to _____

Answer 9

Support life

Question 10

Areas around earth where particles from the sun are trapped are called_____

Answer 10

Van Allen radiation belts

Question 11

Earth is protected from small degrees from space by the ____

Answer 11

Atmosphere

Question 12

The rotation period of Mars is almost the same as___

Answer 12

Earth

Question 13

Since Mars’s axis is tilted the planet has___

Answer 13

Seasons

Question 14

Mountains can build higher on Mars than on earth because it’s ___ is less than earths

Answer 14

Gravity

Question 15

Earth has an atmosphere made up of nitrogen and ____

Answer 15

Oxygen

Question 16

Green plants and other producers release oxygen into the atmosphere as part of _____

Answer 16

Photosynthesis

Question 17

The part of the atmosphere closest to earths surface is the ____

Answer 17

Troposphere

Question 18

Rocky metallic objects that orbit the sun are ____

Answer 18

Asteroids

Question 19

Asteroids are found mostly in a belt between the orbits of ____ and Jupiter

Answer 19

Mars

Question 20

Some_____ have orbits that cross earths path

Answer 20

Asteroids