Science Review

Pluto is classified as a...

• Dwarf planet
• Comet
• Planet
• Asteroid
• Pluto

Answer explanation

Jupiter is a gas giant made primarily of hydrogen and helium. Unlike terrestrial planets that have solid surfaces, gas giants like Jupiter don't have a well-defined solid surface, allowing them to accumulate more mass in a gaseous form. This composition has allowed Jupiter to grow significantly larger than planets with solid surfaces.

The Solar System includes...

• All celestial bodies orbiting the Sun
• Only the Sun
• Only planets
• Only moons and comets

What caused some mass extinctions?

• Asteroid impacts or volcanic eruptions
• Climate change
• Evolution
• Drought

The center of a planet is called...

• Core
• Mantle
• Surface
• Atmosphere

Icy objects with glowing tails near the Sun are...

• Comets
• Asteroids
• Meteoroids
• Planets

Earth's path around the Sun is an...

• Orbit
• Elliptical loop
• Circle
• Spin

Rocky region between Mars and Jupiter:

• Asteroid Belt
• Kuiper Belt
• Comet Zone
• Meteoroid Zone

Pedocal soils form in dry grassland areas.

• True
• False

Weathered soils are thick and nutrient-rich.

• False
• True

Soil type influences vegetation.

• True
• False