Universe
What is the universe made of?
The universe is made of gas dust and stars.
How many planets in our solar system
8
What can escape a black hole
nothing
What is the color of the coolest star
Red
What is the composition of a star
hydrogen and helium
Is there an end to the universe?
No, because the universe is expanding.
Name the planets in order from closest to the sun to farthest from the sun
Mercury, Venus Earth, Mars Jupiter, Saturn, Uranus and Neptune
What are the three types of galaxies
spiral, elliptical and irregular
What does a giant star become when it collapse?
White dwarf.
What triggers Nuclear fusion in stars?
Gravity
What is the length of a light year
How far light travels in a year.
What the two types of planets in our solar system
terrestrial and gaseous
What is the name of our galaxy
What is the name of the time in which a star spends most of its lifetime?
Main sequence.
Where do stars come from?
A star comes from the nebulae
How is the universe expanding?
The universe is expanding by dark energy.
What are the gaseous planets
Jupiter, Saturn, Uranus, Neptune
How many stars are in the Milky Way galaxy?
Between 100 and 400 billion stars
What does a collapsed supergiant become?
Neutron star/ black hole.
How do galaxies range in size?
From dwarf galaxies with around 100 million stars to giant galaxies with over 1 trillion stars
Can we see the end of the universe and why?
What are the names of the terrestrial planets?
Earth, Venus, Mars, Mercury.
What is a galaxy?
A huge collection of gas, dust, and billions of stars and there solar systems are held together by gravity
What is the process in which a star emits an enormous amount of energy?
Nuclear fusion.
Were does a stars energy come from and what is it caused by
A stars energy comes from its core and is caused by nucellar fusion