Question 1

. Which of the following best explains why the Sun appears to move across the sky every day?

Accepted Answer

Earth rotates on its axis

Answer

The Sun orbits around Earth.

Answer

The Sun rotates on its axis

Answer

Earth orbits around the Sun.

Question 2

The Earth's Moon is

Accepted Answer

. always much closer to the Earth than it is tothe Sun

Answer

about the same distance from the Sun as it isfrom the Earth

Answer

sometimes closer to the Sun than it is to theEarth and sometimes closer to the Earth thanit is to the Sun

Answer

A. always much closer to the Sun than it is tothe Earth

Question 3

What is the name of the envelope of gases that surrounds Earth?

Accepted Answer

atmosphere

Answer

chromosphere

Answer

lithosphere

Answer

hydrosphere

Question 4

. Earth has seasons because

Accepted Answer

. its axis is tilted as it moves around the sun

Answer

the distance between Earth and the sunchanges.

Answer

it rotates on its axis

Answer

. the temperature of the sun changes

Question 5

How many days does it take Earth to complete one full orbit around the sun?

Accepted Answer

365

Answer

30

Answer

52

Answer

. 100

Question 6

Which of these is the center of our solar system?

Accepted Answer

The sun

Answer

Moon

Answer

Jupiter

Answer

Mars

Question 7

Which statement explains why seasons occur in the Northern and Southern hemispheres?

Accepted Answer

The Earth is tilted on its axis and each hemisphere points toward the Sun in the summer

Answer

The orbit of the Earth is not a circle

Answer

B. The Earth is closer to the Sun in the winter

Answer

The Earth is closer to the Sun in the summer

Question 8

Based on the illustration above, which of the following statements is true

Accepted Answer

The illustration shows a solar eclipse

Answer

The illustration shows how summer occurs inthe Northern Hemisphere.

Answer

The illustration shows a lunar eclipse

Answer

The illustration shows how a full moon occurs.

Question 9

Tides are caused mainly by

Accepted Answer

differences in how much the moon pulls ondifferent parts of the Earth.

Answer

. changes in gravity

Answer

strong winds blowing water onto coasts

Answer

Earth’s rotation on its axis, which causeswater to move

Question 10

Which choice below gives the correct order ofplanets from the Sun?

Accepted Answer

Mercury, Venus, Earth, Mars

Answer

Uranus, Jupiter, Neptune, Saturn

Answer

Mars, Venus, Earth, Saturn

Answer

. Earth, Mars, Venus, Jupiter

Question 11

Earth is the only planet in our solar system known to have

Accepted Answer

life

Answer

craters

Answer

polar caps

Answer

clouds

Question 12

What season is the location of the arrow experiencing on the illustration below?

Accepted Answer

summer

Answer

spring

Answer

winter

Answer

Autumn

Question 13

. On the moon, an astronaut's weight would not be the same as on Earth because __

Accepted Answer

the moon's gravity is less than Earth's

Answer

the moon's gravity is greater than Earth

Answer

the moon has no air

Answer

the moon has no gravity

Question 14

Which of the following correctly lists the “gas giants” in order from smallest to largest?

Accepted Answer

Neptune, Uranus, Saturn, Jupiter

Answer

Neptune, Uranus, Jupiter, Saturn

Answer

Uranus, Saturn, Jupiter, Neptune

Answer

Saturn, Jupiter, Neptune, Uranus

Question 15

. During the first day of which season does North Carolina experience its longest day?

Accepted Answer

Summer

Answer

Spring

Answer

Winter

Answer

Autumn

Question 16

. Which force keeps the satellite below in orbit?

Accepted Answer

Earth’s gravity

Answer

Moon’s gravity

Answer

Sun’s gravity

Question 17

What does NASA stand for?

Accepted Answer

National Aeronautics and SpaceAdministration

Answer

National Aeronautics and Space Association

Answer

North American Space Association

Answer

North American Space Administratio

Question 18

Why are space telescopes so important to ourcurrent study of astronomy?

Accepted Answer

They obtain higher quality images.

Answer

They can be repaired easily

Answer

They are cheaper to build.

Answer

They have fewer technical problems

Question 19

Firefighters wear jackets that resist fire. The special fabric in these jackets was originally developed for which use?

Accepted Answer

space suits

Answer

rocket fuel

Answer

spaceship window

Answer

baby blankets

Question 20

Which of the following is not a reason it is beneficial for humans to explore space.

Accepted Answer

High expenses

Answer

International collaboration

Answer

Technological innovations

Answer

Scientific discoveries

Question 21

. How would you classify the sun?

Accepted Answer

A star

Answer

. A comet

Answer

A Planet

Answer

Soil

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