WorksheetsOuter Space
Total questions: 18
Worksheet time: 18mins
During space exploration it was discovered that the moon is covered with several craters. What is the reason for this?
Collided with asteroids
Sun spots
Earth's gravity
Because it does not have air
Currently, there is no solid evidence that life exist on Mars. Based on this picture, this is most likely because...
iron oxide, creating Mars's red color, does not support life.
Mars has too many volcanic eruptions to allow life.
Mars has a minimal atmosphere.
sunlight does not reach Mars.
Planets X and Y are the most likely planets to support life for all of the following reasons EXCEPT —
They are both smaller planets.
They both have an atmosphere
The both have frozen water.
They are a good distances away from the Sun
Enough water has been discovered on Mars to cover the whole planet in several meters of it if melted. In addition, several places on Mars rise to a temperature of 80 degrees Fahrenheit during the day. Although these conditions seem suitable for life, there is currently no life on Mars. What is a good hypothesis for why this is the case?
The sunlight is not strong enough to help plants grow.
The gravity on Mars is lighter than the gravity on Earth.
The salts in the Martian soil are poisonous to plants.
The composition of the atmosphere is not suitable for life.
The region on a globe that is blue indicates water on Earth. Water is essential for life on Earth for all of the following reasons EXCEPT —
it helps the Earth circulate in all three forms of matter.
it helps regulate the temperature on Earth
it is what living organisms are made out of.
plants use it in photosynthesis
Fill in the blank.
Outer space is almost a perfect _______________, full of cosmic voids. Due to gravity pulling all matter to the strongest source.
vacuum
universe
ocean
open space
Celestial objects that orbit a star are known as ---
moons
solar systems
planets
extraterrestrial
___________ are celestial bodies in space that orbit around stars, while ____________ are celestial bodies that orbit around planets.
Moons / planets
Planets / moons
Suns / moons
Planets / Suns
The largest planet in our solar system is...
Earth
the Sun
Jupiter
Saturn
If the Earth were any closer to the Sun, how would conditions for life on Earth change?
The conditions would be exactly the same.
The conditions would cause more ice to form.
The conditions would cause more plant life to grow.
The conditions would be too hot to support life.
Which of the following is a reason that life exists on Earth?
distance from the Sun
presence of an atmosphere and magnetic field
liquid water
all answers are correct
The atmosphere helps keep Earth's temperatures unstable and lets meteors hit the surface at full force.
True
False
Earth has _____ layers of atmosphere.
3
4
5
6
Outer space is ...
everything outside of Earth's atmosphere
everything outside of Earth's surface
only within our solar system
everything outside of the inner planets
Earth and the other planets do not drift off into space away from the Sun due to...
moons
momentum
orbiting
gravity
Why can't the water cycle function on Mars like it does on Earth?
Because there is no water
Because temperatures on Mars are too cold
Because the atmosphere is made of carbon dioxide
Because Mars is orbiting the Sun too slow
Dwarf Planets are the same as normal planets expect that they are ...
smaller
larger
moons
have no atmosphere
How many solar systems are there in the universe?
1,000
9
25,775
unknown
