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Moon
Periodic table
Weather
Astronomy
Sea star
100
what is the speed of light in miles per sec
What is 186,282 m/s
100
Chemical symbol and atomic number for hydrogen
What is H. 1
100
Strongest storm on earth
What is hurricane
100
Light years to Milky Way galaxy
What is 100 thousand light years
100
Stone canal
What is tube that coonects madreporite to ring canal
200
How many light years across is the milky way
What is 100,000 light years
200
what are 6 noble gases
What is Helium, Neon, Argon, Krypton, Xenon, Radon
200
what is a cyclone
What is low pressure
200
What percent does iron make up in earth
What is 80%
200
tube feet used for
What is locomotion
300
What type of satelite is the moon
What is natural satelite
300
What chemical symbol is silver
What is Ag
300
2 strongest types of storms on earth
What is hurricane, and tornado
300
Most abundant element in earth core
What is iron
300
what are the spines used for
What is protection
400
how long until sun turns to red giant
What is 5 billion years
400
Chemical Symbol for Zirconium
What is Zr
400
scale used for measuring tornado
What is fujita scale
400
How long until sun turns to red giant from now
What is 5 billion years
400
Where are the eye spots located
What is at end of tube feet
500
What type of rock is maria
What is basalt
500
Atomic number for xenon
What is 54
500
what are the 3 types of clouds
What is cirrus, stratus, cumulus
500
What is the speed of light
What is 186,282 m/s
500
What are gonads used for
What is making sperm or egg