Test REVIEW : Science Solar System Test (4th Grade - Delta Science - DSM)

Question 1

What does the word "solar" mean?

Accepted Answer

Having to do with the Sun

Question 2

object that travels around another object in space

Accepted Answer

satellite

Question 3

Earth has seasons because.....

Accepted Answer

it has a tilted axis and revolves around the Sun

Question 4

A year on another planet may be longer than a year on Earth because.....

Accepted Answer

the planet has a bigger orbit than Earth

Question 5

all the gases around a planet

Accepted Answer

atmosphere

Question 6

time it takes a planet to rotate once

Accepted Answer

day

Question 7

Why does Earth have day and night?

Accepted Answer

it rotates on its axis

Question 8

bowl-shaped hole formed when a space object hits a planet

Accepted Answer

crater

Question 9

a star and all the objects that travel around it

Accepted Answer

solar system

Question 10

force that keeps each planet in its path around the Sun

Accepted Answer

gravity

Question 11

Jupiter, Saturn, Uranus, and Neptune are know as the __________________________.

Accepted Answer

gas giants

Question 12

What is a nickname for a meteor?

Accepted Answer

shooting star

Question 13

What are the four inner planets?

Accepted Answer

Venus, Earth, Mercury, Mars

Question 14

imaginary line around which a planet rotates

Accepted Answer

axis

Question 15

huge ball of glowing gas that gives off light and heat

Accepted Answer

star

Question 16

frozen chunk of dust, ice and gases that revolves around the Sun

Accepted Answer

Comet

Question 17

time is takes a planet to complete one revolution around the Sun

Accepted Answer

year

Question 18

What does this describe: hard and rocky, with rings and few moons

Accepted Answer

inner planets

Questions 18