Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
15
×
What gases composed the first atmosphere?
Light gases like hydrogen and helium
Oops!
Check
Okay!
Check
15
×
What is an invertebrate?
An animal without a backbone
Oops!
Check
Okay!
Check
15
×
What is a comet?
A ball of dust, gas, and ice that orbits the sun
Oops!
Check
Okay!
Check
15
×
How did scientists develop the geologic time scale?
By studying rock layers and index fossils
Oops!
Check
Okay!
Check
15
×
What are eras subdivided into?
Periods
Oops!
Check
Okay!
Check
×
trap
No points!
Oops!
×
fairy
Take points!
5
10
15
20
25
×
gift
Win 15 points!
Okay!
×
banana
Go to last place!
Oops!
15
×
During which era did reptiles spread widely?
Mesozoic
Oops!
Check
Okay!
Check
15
×
How did Earth's oceans form?
As the atmosphere cooled, water vapor condensed into rain which fell and formed the oceans
Oops!
Check
Okay!
Check
15
×
What is a mass extinction?
When many types of living things become extinct at the same time
Oops!
Check
Okay!
Check
15
×
What information do scientists infer from fossils?
How organisms and environments have changed over time
Oops!
Check
Okay!
Check
×
banana
Go to last place!
Oops!
×
shark
Other team loses 25 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
banana
Go to last place!
Oops!
15
×
Aside from respiration, why was the release of oxygen during photosynthesis important to land animals?
The oxygen formed the ozone layer which protects Earth from ultraviolet rays from the sun
Oops!
Check
Okay!
Check
15
×
What is an amphibian?
A vertebrate that spends part of its life in the water and part of its life on land
Oops!
Check
Okay!
Check
×
banana
Go to last place!
Oops!
×
star
Double points!
Okay!
×
rocket
Go to first place!
Okay!
×
lifesaver
Give 10 points!
Oops!
×
lifesaver
Give 25 points!
Oops!
×
fairy
Take points!
5
10
15
20
25
×
shark
Other team loses 15 points!
Okay!
×
thief
Give points!
5
10
15
20
25
15
×
Why do geologists use the geologic time scale?
Because the time span of Earth's past is so great
Oops!
Check
Okay!
Check
×
Restart
Review
Join for Free
;
Your experience on this site will be improved by allowing cookies.
Allow cookies