Big Bang

Question 1

Galaxy

Answer 1

A galaxy is a collection of gas and stars and their solar systems

Question 2

Solar system

Answer 2

a group of celestial body’s held and revolved by the sun

Question 3

Astronomer

Answer 3

A scientist who studies the objects in the sky, including planets, galaxies, black holes, and stars

Question 4

Expanding universe

Answer 4

The universe has been growing ever since the Big Bang

Question 5

Singularity

Answer 5

a condition in which gravity is so intense that spacetime itself breaks down catastrophically

Question 6

Gravity

Answer 6

an invisible force that pulls objects toward each other

Question 7

Cosmology

Answer 7

Cosmology is a branch of physics and metaphysics dealing with the nature of the universe

Question 8

Star

Answer 8

A natural luminous celestial body only visible at night

Question 9

Celestial body

Answer 9

A natural object located in space

Question 10

Moon

Answer 10

a natural satellite of any planet

Question 11

Asteroid

Answer 11

a small rocky body orbiting the sun

Question 12

Comet

Answer 12

a celestial object consisting of a nucleus of ice and dust

Question 13

Gravitational

Answer 13

the force that pulls two masses toward each other

Question 14

Rotation

Answer 14

an object’s spinning motion about its own axis

Question 15

Revolve

Answer 15

move in a circle on a central axis

Question 16

Statilite

Answer 16

a moon, planet or machine that orbits a planet or star

Question 17

Atmosphere

Answer 17

the layers of gases surrounding a planet or other celestial body

Question 18

Reflect

Answer 18

change in direction of a wave, such as a light or sound wave, away from a boundary the wave encounters

Question 19

Tides

Answer 19

very long-period waves that move through the ocean in response to the forces exerted by the moon and sun

Question 20

Non luminous

Answer 20

can not emit light on their own