Why does it matter that we have found water on Mars?

It means there COULD be life on Mars

Water's freezing point means it can exist as both ____ and ____

Liquid oceans and solid glaciers

Read the next question:

Water is less dense as a solid than a liquid

How does gravity support life on Earth?

Keeping the water and gases in the atmosphere close

Why does the Earth have life but not the Moon?

The moon doesn't have enough water and oxygen

If the Sun was larger, what would have to happen to keep life on Earth?

Earth would have to be further from the Sun

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Solar System Review

17 termsStudBud Administration153 plays

A #Science Quiz to review our Solar System

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Questions 17

Answers

1
Plants on Earth need Soil, Air, Water and Sunlight. Could they survive on the Moon?
No
Yes
2
Which of these is unique to Earth?
It revolves around the sun
It has gravity
It has a moon
It's covered by mostly water
3
Which planet is MOST likely to have life based on its characteristics?
Mars
Venus
Jupiter
Saturn
4
How is Earth different than other planets?
It is made of rocky material
It has liquid water
It is dense and small
It is surrounded by an atmosphere
5
How does the Earth sustain (keep) life?
The atmosphere is breathable.
The atmosphere lets all of the sun's radiation through
The atmosphere is really thick
The atmosphere prevents space junk from falling to Earth
6
Why can't the outer planets support life?
They're too cold
They have too little mass
They have too much mass
They're too hot
7
Which properties are MOST important to keeping life on Earth?
3 and 4
1 and 2
4 and 5
2 and 3
8
Why does it matter that we have found water on Mars?
It means there COULD be life on Mars
It proves there's life on Mars
It proves that there's a civilization on Mars
It proves there was a civilization on Mars
9
Water's freezing point means it can exist as both ____ and ____
Freshwater rivers and saltwater oceans
Liquid oceans and solid glaciers
Atmospheric vapor and cloud droplets
Water in soil and water in plants
10
Read the next question:
Water has a hardness of 2
Water is less dense as a solid than a liquid
Water holds less air at higher temperatures
Water can dissolve different things
11
How does gravity support life on Earth?
Forcing Earth to rotate on an axis so we have day and night
Preventing meteors and comets from hitting the surface
Causing changes in the distance between Earth and Sun
Keeping the water and gases in the atmosphere close
12
Life is more likely to be found on a planet that has ___ in the atmosphere
Sulfur dioxide
Hydrogen
Oxygen
Neon
13
How does Earth's distance from the Sun MOST affect life on Earth?
It changes water's gravity
It allows water to freeze
It allows water to be salty or fresh
It allows for liquid water
14
Why does the Earth have life but not the Moon?
The moon doesn't have enough water and oxygen
The moon doesn't go around the sun
The moon doesn't have gravity
The moon is too small
15
How does the Moon stay in orbit?
Gravity
Longitude
Latitude
Friction
16
How do we know life could develop on Mars?
The craters and rocky surface
The ice and organic molecules
The atmospheric gases
The surface temperatures
17
If the Sun was larger, what would have to happen to keep life on Earth?
Earth would have to be further from the Sun
Earth would have to be closer to the Sun
Earth would have to be smaller
Earth would have to be bigger

Solar System Review Flashcards | StudBud