Astronomy

These planets from the solar system are drawn to scale.  Which planets are X and Y?

• X is Venus and Y is Mars.
• B. X is Mars and Y is Venus.
• X is Mercury and Y is Mars.
• X is Mars and Y is Mercury.

These planets from the solar system are drawn to scale. Which planet could be Planet Z?

• Mars
• Venus
• Neptune
• Mercury

The planets below are drawn to scale.Which planet could be Planet X?

• Neptune
• Mercury
• Uranus
• Venus

The graph below shows the diameters of the planets. The diameter of a planet is the distance from one side to the other through the middle at the widest part. Which two planets are closest in size?

• Uranus and Neptune
• Venus and Mars
• Jupiter and Saturn
• Mercury and Earth

Pluto is called a dwarf planet. It is smaller than the planets in the solar system. The size of each solar system planet is listed in the table below. Which planet is MOST likely closest to Pluto in size?  
 

• Mars
• Mercury
• Jupiter
• Neptune

Which set of planets is in order, from largest to smallest?

• Jupiter, Mars, Mercury
• Jupiter, Venus, Earth
• Uranus, Saturn, Mars
• Uranus, Mars, Venus

How do gas giants compare to the terrestrial planets?

• terrestrial planets are much larger
• terrestrial planets are much smaller
• gas giants are slightly larger
• gas giants are slightly smaller

The picture shows the position of the Sun, Earth, and the Moon on one night.  What moon phase did people on Earth see on this night?

• New Moon
• First Quarter
• Full Moon
• Third Quarter

Melinda learned that days in some seasons have more daylight hours than in other seasons. Which season receives the MOST hours of sunlight in the Northern Hemisphere?

• Fall
• Spring
• Summer
• Winter

Jenny knows that when it is daytime on one part of Earth, it is nighttime on another. What makes daylight turn to darkness?

• the rotation of Earth
• the tilt of Earth on its axis
• Earth revolving around the Sun
• the Sun traveling away from Earth