Solar System Intro

Is this your test? Login to manage it. If not, you can generate an assessment just like it.

1.
1 point
------- are dirty-ice remains from the formation of our solar system. The ancients called these "hairy stars".
2.
1 point
----- is the distance across the middle (or center) of a sphere.
3.
1 point
------ is the ratio between the measurements on a map or model and the actual proportions of an object.
4.
1 point
The first ----- planets are called the inner planets or the terrestrial planets.
5.
1 point
----- are rocky fragments left over from the formation of the solar system.
6.
1 point
The science of observing the sky is called -----.
7.
1 point
------ is the region beyond Neptune where most comets come from.
8.
1 point
Most asteroids are found between Mars and Jupiter in an area called -----.
9.
1 point
------planets have a solid surface.
10.
1 point
Jovian planets, or gas giants, have a rapid ----- and many satellites.
11.
1 point
If an object in space is smaller than the ------- and it orbits the Sun, we call the object a solar system body.
12.
1 point
Which of the following planets is NOT a gas giant?
13.
1 point
We discover about ---- new comets per year.
14.
1 point
A ---- is a massive, sphere-shaped object in space that orbits a star and shines by reflecting the star's light.
15.
1 point
A ---- is a physical feature of a planet's surface such as a mountain or plain.
16.
1 point
------- are representations used to study objects, ideas or systems that are too complex, large or distant to study easily firsthand.
17.
1 point
The curved path of a planet or moon around a central object is called its ------.
18.
1 point
----- is the measure of the force of gravity on an object. This amount changes in outer space.
19.
1 point
Which of the following planets is a terrestrial planet?
20.
1 point
Ceres, Pluto, Makemake, Eris and Haumea are -------.
21.
1 point
----- is a force of attraction between two objects. This is the force that pulls us toward the Earth.
22.
1 point
------ are the preserved remains or impressions of organisms of Earth's geological past.