Lesson 1 Outer Space

Question 1

Any of numerous small celestial bodies that revolve around the sun with orbits chiefly between Mars and Jupiter.

Answer 1

Asteroid

Question 2

A scientist who specializes in the study of the universe beyond Earth.

Answer 2

Astronomer

Question 3

Of or pertaining to the sky or the heavens.

Answer 3

Celestial

Question 4

To come together with direct impact

Answer 4

Collide

Question 5

Of pertaining to, or having the shape of a plane curve

Answer 5

Elliptical

Question 6

Originating, located, or occurring outside Earth or its atmosphere.

Answer 6

Extraterrestrial

Question 7

An undeveloped area or field for discovery or research.

Answer 7

Frontier

Question 8

A large-scale group of stars, has, and dust, having one of a group of more or less definite overall structures.

Answer 8

Galaxy

Question 9

To move downward or in response to the force of gravity.

Answer 9

Gravitate

Question 10

Of, involving, caused by, or affecting the moon.

Answer 10

Lunar

Question 11

The remains of a celestial body that survives passage through the atmosphere and reaches Earths surface.

Answer 11

Meteorite

Question 12

A building designed and equipped for making astronomical observations.

Answer 12

Observatory

Question 13

The circular motion of an object around a specified axis.

Answer 13

Rotation

Question 14

Of, pertaining to, or proceeding from the sun.

Answer 14

Solar

Question 15

Great in area or extent; great in number, size, or quantity.

Answer 15

Vast