Definitions 1
Balls of dust and ice
Comets
Which planet is the 4th from the Sun?
Mars
The layer of air that surrounds the Earth
How many layers does the Earth have?
3
Large spheres of gas which produce heat and light
Stars
How long ago did the universe appear?
15 000 million years ago
The layer of water in the Earth
Hydrosphere
How long does one rotation of the moon take?
29 and a half days
Lots of nebulas and stars
Galaxies
How did the Universe appear?
The Big Bang
The dense middle layer of the Earth's geosphere
The mantle
When the moon is in a C shape, it is called a ... moon
Waning moon
These are made of dust and gas and become stars
Nebulas
The Earth moves in two different ways. What are they called?
Rotation and Orbit
How long does one rotation of the Earth take?
24 hours
When the Earth is between the Sun and the Moon, it is a ... moon
Full Moon
These become meteorites when they hit a planet.
Asteroids
What produces the 4 seasons?
Northern Hemisphere
Which planet is the furthest away from the sun?
Pluto