Science Grade 4 Chapter 9

Earth is the _______ closest planet to the Sun in the Solar System.

• third

• fourth

• fifth

• sixth

Which planet is the furthest from the Sun?

• Mercury

• Mars

• Venus

• Neptune

Which of the following is correct?

• A planet further away from the Sun has a smaller orbit.

• All planets have the same orbit.

• A planet further away from the Sun has a longer period of revolution.

• All planets have the same period of revolution.

Asteroids revolve around the Sun in ______ orbits.

• circular

• elliptical

• parabolic

• hyperbolic

What celestial body develops a tail of gas and dust when near the Sun?

• asteroid

• comet

• meteoroid

• meteorite

What is the name of the largest asteroid?

• ceres

• vesta

• pallas

• hygiea

What happens to a meteoroid when it enters Earth's atmosphere?

• it becomes a comet

• it burns up and creates a meteor

• it lands on the Sun

• it becomes an asteroid

Solar flare events ____________ reaching the Earth's surface.

• Increase the amount of sunlight

• Increase the amount of infrared radiation

• Increase the amount of ultraviolet radiation

• Increase the amount of rain