CONTEXT
Why is Mars considered important in the search for life? + 100
ecause it lies within the Goldilocks zone and had a warmer, wetter history.
Volatile + 100
Easily evaporated.
OCD
Obsessive-Compulsive Disorder
What percentage of the Solar System’s mass does the Sun contain? +100
About 99.8%.
Dormant + 200
Inactive
What are the two types of giant planets?
Gas giants and ice giants.
Arid
Very dry
synonymous
two things are so closely connected in most people's minds that one suggests the other.
Where is the asteroid belt located? + 100
Between Mars and Jupiter.
Hazardous
Dangerous
When did the Solar System begin to form?
About 4.57 billion years ago.
Evaporate
To change from liquid into gas
debilitating
making someone or something physically weak
Why did Mars lose much of its atmosphere?
Because of weak gravity and lack of a protective magnetic field.
Bombarded
Hit repeatedly.
Why did Venus lose its water?
Because of a runaway greenhouse effect.
Photosphere
The visible surface of the Sun.
fastidious
having high standards and giving a lot of attention to details
What process makes the Sun shine? + 100
Nuclear fusion.
Terrestrial
Related to rocky planets like Earth.
What was the Sun formed from?
From a collapsing cloud (nebula) rich in gas and dust.
Snapshot
A view of something at one moment in time.
manifest
to show something clearly,
What is the Sun mainly made of?
HYDROGEN
Protoplanet
A developing planet formed from dust and gas.