Ch4 celestial bodies

Question 1

Celestial bodies

Answer 1

Celestial bodies are any natural objects found outside of earths atmosphere. Eg moon, planets,stars

Question 2

Stars

Answer 2

A star is a luminous sphere of mainly hydrogen and helium gas held together by the force of gravity.

Question 3

Lifecycle of a star

Massive star

Answer 3

Stellar nebula 
Massive star 
Red Supergiant 
Supernova
Back hole/neutron star

Question 4

Lifecycle of a star

Low mass stars

Answer 4

Stellar nebula 
Low mass star 
Red giant 
Planetary nebula 
White dwarf

Question 5

Planetary system

Answer 5

All celestial bodies that orbit a star because of the stars gravity.

Question 6

Solar system

Answer 6

Solar system consists of a star and all the celestial bodies that orbits the star

Question 7

Planet

Answer 7

A planet is a celestial body that a) orbits a star b)has a large enough mass to be spherical and c)Has cleared the region around its orbit of other celestial bodies.

Question 8

Asteroid

Answer 8

Large lumps of rock or metal smaller than planets that orbit the sun.

Question 9

Meteoroid

Answer 9

Smaller lumps of rocks that orbit the sun.

Question 10

Meteor

Answer 10

Meteor/shooting star is when a meteoroid enters earths atmosphere

Question 11

Meteorite

Answer 11

Remainder of meteoroid that lands on earth.

Question 12

Comets

Answer 12

Large lumps of ice,gases and dust that orbit the sun.

Question 13

Moon

Answer 13

Natural satellite that orbits a planet

Question 14

luminous

Answer 14

Object that creates or emits light

Question 15

Non-luminous

Answer 15

Do not create or emit light

Question 16

Order of Planets

Answer 16

Mercury 
Venus 
Earth 
Mars 
Jupiter 
Saturn 
Uranus 
Neptune