Solar System

Which of these is NOT large and gaseous?

• Jupiter

• Mercury

• Saturn

• Uranus

The tilt of the Earth's axis of rotation is responsible for the

• ocean tides

• size of the moon

• brightness of the stars

• Earth's seasons

The stars in the night sky look as if they are slowly moving because

• the Earth is moving

• they rotate around the sun

• they rotate around the Earth

• the Sun blocks them out at times

The picture shows us how the Sun's rays strike Earth. Because of the Earth's tilt on its axis, some parts of Earth are having summer and others, winter. What letter or letters on the Earth are experiencing summer?

• A

• B

• B and C

• C and D

Which factor has the biggest impact on Earth's seasons?

• Earth's revolution.

• Earth's elliptical orbit.

• Earth's tilt on its axis.

• Earth's distance from the Sun.

Claire created a model to study the day and night cycle of Earth as shown here. What causes different points on the globe to receive light at different times, explaining the day and night cycle of Earth?

• the rotation of the lamp

• the rotation of the globe

• the revolution of the lamp

• the revolution of the globe

You know that the sun rises in the east every morning and sets in the west every evening.

What is it that causes this to happen?

• The rotation of the sun on its axis.

• The rotation of the earth on its axis.

• The rotation of the earth around the sun.

• The rotation of the sun around the earth.

Your science class decides to study the phases of the moon. To do this, you would like a magnified, close-up view of the moon.

What scientific instrument could you use for this?

• 
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We have all seen the moon shining at night, whether it is a small sliver or a large full moon.

What causes the moon to shine the way it does?

• The tilt of the Earth on its axis.

• The rotation of the Earth on its axis.

• When the moon heats up, it gives off light.

• Reflection of sunlight off the surface of the moon.

Steven notices that the shadow he casts in the morning is much longer than the one he casts in the early afternoon.

What is the reason for this difference?

• In the morning, the sun is lower in the sky, and this causes a longer shadow.

• In the morning, the sun is lower in the sky, and this causes a shorter shadow.

• In the morning, the sun is higher in the sky, and this causes a longer shadow.

• In the morning, the sun is higher in the sky, and this causes a shorter shadow.