Name
Date
Class
12.1 Solar System Objects (p.536-540)
Understanding Main Ideas - Answer the following questions in the spaces provided.
1. List all the objects in our solar system. Use the word planets, don’t just name the
planets.
2. How are asteroids different than meteoroids?
3. Where are most of the asteroids in the solar system found? Where are comets found?
Completion - Complete each sentence with the missing word.
4. The sun, the planets, their moons, and a variety of smaller objects make up the
___________________________.
5.
We measure distances within the solar system using the
__________________________________, equal to about 150,000,000km.
6.
About 99.85 percent of the mass of the solar system is contained within the
_________________.
7. All but two planets in the solar system have a natural satellite, or _____________.
8.
A _____________________ is an object that orbits the sun, is round, and has cleared
the area of its orbit.
9. A ______________________ is an object that orbits the sun, is spherical, but has not
cleared the area of its orbit.
10. A _____________________ is a loose ball of ice and rock that usually has a long,
narrow orbit.
Use a device to research so you can draw the solar system below. You
must include: The sun, the planets and their moons, asteroids and the
asteroid belt, Pluto (dwarf planets), comets, the Kuiper Belt and the Oort
Cloud. Everything must be in the right place.