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WorksheetsUnit 4: Space Review
Total questions: 13
Worksheet time: 7mins
How old is our universe?
5 billion years old
14 billion years old
100 million years old
Scientists aren't sure
What were the first 3 elements in order to come into existence at the start of the Big Bang?
Hydrogen, Magnesium, Lithium
Heavy metals, Hydrogen, Helium
Helium, Lithium, Carbon
Hydrogen, Helium, Lithium
What made subatomic particles come together and start to form into atoms?
Expansion of material
Cooling and gravity
Increased Energy
Einstein's Theory of Relativity
When the first stars started to form, what did they form from?
Nebula
Electron Cloud
Dark Matter
Dark Energy
What moved Protostars into their next stage, Main Sequence stage?
Energy
Increased temperature in the core
Cooling of the star
Nuclear Fusion
How old is our solar system?
14 billion years old
5 billion years old
100 million years old
Scientists aren't sure
When our sun moves into the next phase of its life, what will it become?
White Dwarf
Neutron Star
Red Giant
Supernova
When nuclear fusion occurs in a star in the beginning, what new element is being created?
Hydrogen
Lithium
Carbon
Helium
Why are the first four planets in our solar system rocky?
The sun's gravity pulled in the heavier metals first
Gases can't form that close to the sun
stellar winds blew off the gases
the sun's heat absorbed the gases
Why are the four outer planets gaseous instead of rocky?
They big so they have to be gaseous
stellar winds couldn't go out that far
Because they have more mass
Lighter elements stayed further out in the solar system
What lies between the inner and outer planets?
Empty space
Kuiper Belt
Asteroid Belt
gases
Why is Pluto no longer a planet?
It's too small
It really far away from the Sun
It hasn't cleared it's neighborhood
All of theses are reasons
What piece of evidence explains how we know the solar system was created in a certain way?
Scientists examine meterorites
Astronomers analyze asteroids moving in our solar system
Supernovas
Because we can observe it happening today in the Orion Nebula
