Which of the following is the correct order of the planets, starting with the planet closest to the sun?

A. Mars, Mercury, Venus, Earth, Uranus, Neptune, Saturn, and Jupiter
Incorrect. This is not the correct order of the planets. Try again.

B. Mercury, Earth, Venus, Jupiter, Saturn, Uranus, Neptune, and Mars
Incorrect. This is not the correct order of the planets. Try again.

C. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Correct!

D. Jupiter, Saturn, Neptune, Uranus, Earth, Venus, Mercury, and Mars
Incorrect. This is not the correct order of the planets. Try again.

Which of the following causes day and night?

A. Earth’s revolution around the sun.
Incorrect. The Earth does revolve around the sun however this does not cause day and night.

B. Earth's rotation on its axis.
Correct!

C. The moon’s light is brighter at night than the sun's.
Incorrect. The moon does give off its own light. It just reflects the sun's light.

D. Earth is closer to the sun during the daytime.
Incorrect. The Earth’s orbit does not change. On average it is always the same distance from the sun.

In Texas, during certain times of the year we experience more hours of sunlight (longer days). This is due to which of the following reasons?

A. The Earth is slightly tilted on its axis.
Correct!

B. The rotation of the Earth.
Incorrect. The rotation of the earth causes day and night.

C. The sun is brighter during certain times of the year.
Incorrect. The brightness of the sun does not change.

D. The Earth is closer to the sun during certain times of the year so the days are longer then.
Incorrect. The Earth’s orbit does not change. On average it is always the same distance from the sun.

What causes the changes in seasons?

A. The sun is brighter during certain times of the year.
Incorrect. The brightness of the sun does not change.

B. The Earth rotating on its axis.
Incorrect. The rotation of the Earth causes day and night.

C. The Earth is closer to the sun during certain times of the year.
Incorrect. The Earth’s orbit does not change. On average it is always the same distance from the sun.

D. The Earth revolving around the sun and the tilt of the Earth.
Correct!

Which of the following pictures shows the Northern Hemisphere during the winter?

A. Incorrect. Look closely at the way the earth is tilted.	C. Correct!
B. Incorrect. Look closely at the way the earth is tilted.	D. Incorrect. Look closely at the way the earth is tilted.