the study of objects in space and their characteristics.

an imaginary line that goes through Earth from pole to pole

is a chunk of frozen gases, rock, ice and dust

are nearly round bodies whose orbits cross the orbits of other bodies

is a group of billions of stars. The objects that orbit the stars, gas and dust.

A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.

A meteoroid that has hit earth's surface.

small rocky or metallic objects that travel in space.

the path one space object takes around another object

is a large, round body that goes around a star.

The movement of an object around another object

The spinning of Earth on its axis

is made up of a star and the planets and other space objects that revolve around it

are huge balls of hot, glowing gases that produce their own heat and light.

Is everything that exists.

Why is the sun considered the center of the solar system?

It is difficult to see the surface of Venus through a telescope. Which of these features of Venus best explains why its surface is difficult to observe from Earth?

Earth orbits the sun, yet the sun appears to move across Earth’s sky, rising in the east and setting in the west. What causes this apparent movement of the sun?

If one were to build a model globe to identify the physical characteristics of Earth, how much of it should be blue to represent water?

Why is the sun considered the center of the solar system?

Josleen divided some of the planets into two main groups. The table below shows how she grouped them. Which two categories did Josleen most likely use to group the planets?

Paul made a poster showing the solar system. Paul’s poster is shown below. Which of these details in Paul’s poster is accurate?

Asteroids ‘hang out’ in our solar system in a place called:

Objects made of ice, gas and dust and orbit our sun are called what?

One similarity between asteroids, comets and meteoroids is that they all are:

How long does it take for sunlight to get to Earth?