Science (4th) Ch. 8 Lesson 3: The Solar System

Question 1

the Sun and all the objects that orbit around it

Answer 1

solar system

Question 2

a large sphere in space that orbits a star

Answer 2

planet

Question 3

a force of attraction, or pull between objects

Answer 3

gravity

Question 4

a device that collects light and makes distant objects appear closer and larger

Answer 4

telescope

Question 5

a chunk of ice, rock, and dust that orbits the Sun

Answer 5

comet

Question 6

a chunk of rock or metal that orbits the Sun

Answer 6

asteroid

Question 7

a piece of rock, ice or metal that burns up in Earth’s atmosphere causing a streak of light to appear in the sky

Answer 7

meteor

Question 8

a meteor that hit Earth’s surface

Answer 8

meteorite

Question 9

The Sun is at the _________ of the solar system.

Answer 9

center

Question 10

Planets, moons, and other objects orbit around the _________.

Answer 10

Sun

Question 11

________, as well as the Moon cannot make their own light. They also reflect the Sun’s light so we can see them.

Answer 11

Planets

Question 12

Who validated Copernicus’ model of the solar system using his telescope?

Answer 12

Galileo

Question 13

What did Galileo use to validate Copernicus’ model of the solar system?

Answer 13

telescope

Question 14

What makes faraway objects seem closer?

Answer 14

telescope

Question 15

The (inner outer) planets are (rocky smooth) planets.

Answer 15

inner

rocky

Question 16

What are the inner planets that are rocky?

Answer 16

Mercury, Venus, Earth & Mars

Question 17

What planet is the closest to the Sun?

Answer 17

Mercury

Question 18

What planet is the hottest planet?

Answer 18

Venus

Question 19

Venus rotates very (fast slowly) on its axis. This makes one day on Venus last _______ Earth days.

Answer 19

slowly

243

Question 20

What two planets are very close in size?

Answer 20

Earth & Venus

Question 21

Mars is (smaller larger) than Earth?

Answer 21

smaller

Question 22

What is the only planet with the right conditions to support life?

Answer 22

Earth

Question 23

What are the two things that Earth has to support life?

Answer 23

oxygen & liquid water

Question 24

The outer planets are (tiny giant) planets?

Answer 24

giant

Question 25

The outer planets are made mostly of what?

Answer 25

gases

Question 26

Name the four outer planets.

Answer 26

Jupiter, Saturn, Uranus & Neptune

Question 27

What is the largest planet?

Answer 27

Jupiter

Question 28

What is the second largest planet?

Answer 28

Saturn