Test 1

Question 1

Solar system

Answer 1

All of the things that are in our galaxy and that revolve around our sun

Question 2

Geocentric model

Answer 2

Center of the earth

Question 3

Heliocentric model

Answer 3

Center of the sun

Question 4

Epicycles

Answer 4

Orbiting around itself

Question 5

Elliptical orbit

Answer 5

The shape planets orbit

Question 6

Gravity

Answer 6

A force in our atmosphere

Question 7

Sun

Answer 7

The star our solar system orbits around

Question 8

Dwarf planet

Answer 8

Something that has some but nor all tithe characteristics of a planet

Question 9

Natural satellite(moon)

Answer 9

Something that is natural and revolves around a planet

Question 10

Asteroid

Answer 10

A large rock-shaped object in space that orbits the sun

Question 11

Comet

Answer 11

Chunks of ice and dust traveling though space

Question 12

Meteor

Answer 12

A meteoroid that has entered Earth’s atmosphere

Question 13

Revolution

Answer 13

Orbit around the sun

Question 14

Rotation

Answer 14

Orbit around itself

Question 15

Space station

Answer 15

A large artificial satellite on which people live and work for long periods

Question 16

Space shuttle

Answer 16

A spacecraft that can carry a crew into space, return to Earth, and be reused

Question 17

Rover

Answer 17

A small robotic space probe that can move about the surface of the planet or the moon (Mars rover)

Question 18

Probe

Answer 18

A spacecraft that has various scientific intents that collect data, that has no human crew

Question 19

What are the 3 criteria for an object to be considered a planet

Answer 19

Rounded by gravity, must orbit around sun, must have clear orbit

Question 20

List the planets in order from closest to the sun to farthest from the sun

Answer 20

Mercury Venus earth Mars Jupiter Saturn Uranus Neptune

Question 21

Terrestrial planets

Answer 21

Earth Mercury Venus Mars

Question 22

Gas planets

Answer 22

Jupiter Saturn Uranus Neptune

Question 23

List some differences between the terrestrial and gas planets

Answer 23

Terrestrial are smaller rocky and dense and gas are large and gas

Question 24

List the unique features of each planet

Answer 24

Mercury- smallest planet and is closest to the sun

Question 25

List some unique features of each planet

Answer 25

Venus- hottest planet and earths sister

Question 26

Unique features

Answer 26

Earth- only planet in our solar system with liquid water in the surface, home planet and has mantle and core

Question 27

Unique features

Answer 27

Mars- known as red planet

Question 28

Unique features

Answer 28

Jupiter- largest planet in our solar system

Question 29

Unique features

Answer 29

Saturn- 7 rings

Question 30

Unique features

Answer 30

Uranus- rings and it rotates sideways

Question 31

Unique features

Answer 31

Neptune- blue planet and has violent weather

Question 32

What force is responsible for creating the planets and their orbits

Answer 32

Gravity

Question 33

What 2 factors change gravity

Answer 33

Distance and mass

Question 34

Describe how gravity would change if you change the mass of the objects

Answer 34

Of you increase mass the gravity increases and of you decrease mass gravity decreases

Question 35

Describe how gravity would change if you change the distance between the objects

Answer 35

Of you increase the distance, gravity decreases and if you decrease the distance gravity increases

Question 36

What does rotation and revolution of the outer planets compare to the inner planets

Answer 36

Their rotation and revolution of the outer planets is longer than the inner planets

Question 37

What are the big events in space exploration history in chronological order

Answer 37

``` Telescope is invented First artificial satellite First human in space First human on the moon First probe to send data from another planet Mars rover is launched ```

Question 38

List some advancements used to make space travel possible

Answer 38

Velcro-hold down food/plates | Space station- long term living in space