The universe contains...
galaxies
Meteors
comets
planets
black holes
stars
shooting stars
rocks
meteorites
the sun
A star is a huge ball of gas, mostly hydrogen and...
Helium
Methane
Sulfur Dioxide
Carbon Dioxide
Nuclear fusion reactions inside the star release enormous amounts of..
Energy
Heat
Dust
A galaxy is a large group of...
millions of stars
meteors
A black hole forms when a large star collapses in on itself because of gravity.
Comets are balls of...
Ice
Gases
Metals
Smaller rocks
Meteors are made from...
grains of dust
smaller rocks
gases
Meteors burn up when they enter a planet's atmosphere, forming a...
Explosion
Shooting Star
Earthquake
Moons orbit
the moon
Planets orbit...
Stars
Moons
The force acting on them is called?
Centripetal Force
Gravity
Air resistance
The source of the centripetal force is...
Gravitational Attraction
Big amounts of Energy
from collisions.
The solar system consists of...
a star
comets and asteroids in orbit around the Sun
satellites (moons) in orbit around most of the planets
planets and dwarf planets in orbit around the star
Asteroids
A black hole
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