Lesson 4: Vocabulary

Question 1

Saturn

Answer 1

Sixth planet from the sun, has a big set of rings.

Question 2

Uranus

Answer 2

Seventh planet from the Sun, tipped on it’s side

Question 3

Neptune

Answer 3

Eighth planet from the Sun, has right satellites

Question 4

Pluto

Answer 4

Dwarf planet

Question 5

Asteroids

Answer 5

Rocky fragments that are larger than a few hundred meters across

Question 6

Meteoroids

Answer 6

Chunks of rock

Question 7

Meteor

Answer 7

Brief flash of light visible when a meteoroid strikes the earth’s atmosphere

Question 8

Meteorites

Answer 8

If meteoroid fragments survive and strike the earth

Question 9

Comet

Answer 9

Dirty snowball

Question 10

Nucleus

Answer 10

Solid part of comet

Question 11

Coma

Answer 11

Haze surrounding the nucleus

Question 12

Ion Tail

Answer 12

Ionized atoms that are swept directly away from the Sun by the solar wind

Question 13

Dust Tail

Answer 13

Dust particles that are blown away from the Sun by the solar wind

Question 14

Oort Cloud

Answer 14

A vast reservoir of comets orbiting about 50,000 AU from the Sun

Question 15

Jupiter

Answer 15

Largest of the planets and the fifth planet from the Sun