Show:
Stars
Galaxies
Planets
Forces
Comets & Asteroids
100
What is the name of the star closest to earth?
The Sun
100
What is the name of our galaxy?
The Milky Way
100
How many planets are there in our solar system?
8
100
What is the difference between mass and weight?
Your weight is the pull of gravity relative to your size. Your mass never changes.
100
What is a comet?
It's a big ball of ice and rock that's slowly burning up in space.
200
What is a red giant?
A star that is almost out of fuel.
200
How many stars are in our galaxy?
Billions
200
What are the hottest and coldest planets in the solar system?
Hottest: Venus Coldest: Neptune
200
What is a light year?
How far light travels in a year.
200
Do comets ever get sucked in to the sun?
Yes
300
How is a black hole formed?
A black hole is formed when a star is so large that it collapses on itself and becomes so dense that not even light can escape it.
300
How big is the universe?
Ever expanding.
300
Name all of the major objects from the Sun to Neptune.
Mercury, Venus, Earth, The Moon, Mars, Asteroid Belt, Jupiter, Saturn, Uranus, Neptune.
300
What is weight, gravity and mass measured in?
Kg and newtons
300
What is the difference between a meteor and an asteroid?
An asteroid makes it to the surface of the earth whilst a meteor burns up.
400
How can you figure out how hot a star is?
The color of the star (OBAFGKM) shows how hot it is.
400
What kind of galaxy is the milky way?
Spiral Galaxy
400
What does the Sun use as its fuel?
Hydrogen and Helium.
400
Why does your weight change when you are not on earth but not your mass?
Because your mass is constant and gravity is just pulling you towards the ground.
400
What is the "tail" of a comet made of?
Dust and ice
500
What is a black dwarf?
It's a cooled down white dwarf.
500
Name all of the types of galaxies.
Spiral, Elliptical and irregular.
500
How many moons does Jupiter have?
69
500
How strong is a black hole?
So strong that light can't escape it.
500
How often does Halley's comet come around to earth?
Aprox: 75 years