SC.5.E.5.3 Form B

1. Arelly and Manuel are trying to write a general description of a planet in our Solar System. So far, their list looks like this : 1. orbits the Sun 2. is nearly round What else can they add to their list?

• spins on its axis
• has at least one moon
• has water on its surface
• is always the same distance from the Sun

2. Demarcus wants his friend, Alvin, to guess which planet he is describing. He tells Alvin that the planet is rocky and doesn't have any moons. What other clue would let Alvin be certain which planet Demarcus is describing?

• It has rings around it.
• It is very hot in daytime.
• It has a thick atmosphere.
• It has liquid water on its surface.

3. Of the outer planets, which one is closest to the Sun?

• Jupiter
• Neptune
• Saturn
• Venus

4. Comets and asteroids both crash into planets or their moons sometimes. In what other way are comets and asteroids similar?

• They both have a smooth, round shape.
• They are both found in orbit around the Sun.
• They both develop glowing tails near the Sun
• They are both made of ice and rock particles.

5. Which of the following describes one way that Mars and Earth are different?

• Mars has a moon but Earth does not.
• Earth has an atmosphere but Mars does not.
• Earth is an inner planet and Mars is an outer planet.
• A year on Earth is about half as long as a year on Mars.