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WorksheetsY9 Space
Total questions: 17
Worksheet time: 36mins
What are planets outside our solar system officially called?
Ecoplanets
Exoplanets
Alien Worlds
Exoworlds
What is it called when a planet crosses directly in front of it's star?
a Hot Jupiter
an eclipse
a direct line
a transit
Have any exoplanets been seen directly and photographed?
Yes
No
How many exoplanets do scientists believe might there be in our galaxy?
Hundreds of millions
Hundreds of billions
Billions of billions
Millions of billions
What is the most successful way to discover exoplanets?
Transits
Spacecraft fly-bys
Direct pictures
Doppler Shift
What is the habitable zone (Goldilocks Zone)?
A zone with the correct distance away from a star
A zone in space where water turns into vapor
A zone where life can not be sustained
A zone in space where water is frozen
What is an astronomical unit (A.U.)?
the time it takes light to travel one year
the distance between the Earth and the Moon
the distance between the Earth and the Sun
the distance between the Earth and the Neptune
Why do we use light years and astronomical units to measure distances in space?
Scientists want to sound smart.
Hubble discovered these units and wanted to use them.
Space is too small to use km, it wouldn't make sense.
Space is too big, vast, enormous to use traditional units, like miles.
Which of the following scenarios would be appropriate to use light years?
From the sun to Earth
from Earth to Neptune
from the Milky Way to its closest galaxy
Asteroid Belt to the Kuiper Belt
