Inner Planets

• Neptune

• Pluto

• Saturn

• Venus

Why does Earth support life and Mars doesn't?

• There are active volcanoes on Mars.

• There are active volcanoes on Earth.

• There are large ice caps on Earth.

• Earth has oxygen in the atmosphere.

Which terrestrial planets have diameters that are nearly equal in size?

• Earth and Mars

• Mars and Venus

• Earth and Venus

• Mars and Mercury

• Student 2, because all known living organisms need liquid water to survive.

• Student 1, because the atmosphere on Earth is very similar to that on Mercury.

• Student 2, because the rocks on Earth form in the same way as those on Mercury.

• Student 1, because all living organisms need oxygen and carbon dioxide to survive.

What is the order of the distances of the terrestrial planets from the Sun, from farthest

to closest?

• Mars, Venus, Earth, Mercury

• Mars, Earth, Venus, Mercury

• Mercury, Venus, Earth, Mars

• Venus, Earth, Mars, Mercury

• They both have oceans of liquid water.

• They both rotate in the same direction.

• They are approximately the same size.

• They are the same distance from the sun.

Which of the following is the primary reason Venus is the hottest planet in the solar system?

• The atmosphere of Venus reflects sunlight back into space.

• The surface of Venus absorbs solar radiation from the sun.

• The rotation of Venus affects how the sun’s rays penetrate its atmosphere.

• The atmosphere of Venus radiates heat back down to the surface of the planet.

The surface of Mars appears red due to __________ in the soil.

• Carbon

• Iron Oxide

• Hydrogen

• Oxygen

Which planet has characteristics that make it the MOST likely planet for the discovery of extra-terrestrial life?

• Jupiter

• Venus

• Saturn

• Mars

Which statement is true about the solar system?

• The gas planets are closer to the Sun.

• The solid planets are closer to the Sun.

• The planets are arranged in order of increasing size.

• The solid planets are much larger than the gas planets.