Show:
Half Life
Rock Cycle
Dating Fossils
Random
Bonus
100
What is half life?
What is the time it takes for a radioactive substance to lose half its radioactivity
100
What is rock?
What is any solid mass of mineral or mineral-like matter that occurs naturally as a part of our planet
100
A good index fossil must be easy to ______.
What is identify
100
Bob is 28 and Sherry is 27. Is this relative or absolute dating?
What is absolute
100
You have 100 grams of uranium. How many grams of uranium will you have after 3 half lives?
What is 12.5 grams of uranium
200
If you start with 24 grams of uranium, how much lead will there be after 2 half lives?
What is 18 grams of lead
200
The Rock Cycle is a __________ process.
What is continuous
200
Index fossils are what?
What is the remains of a species that existed on Earth for relatively short period of time, were abundant and widespread geographically
200
Lava is what?
What is molten rock on the surface of the Earth
200
Magma is what?
What is molten rock beneath the earth's surface
300
If you had 40 grams of uranium, how much uranium would be left after 4 half lives?
What is 2.5 grams of uranium
300
Metamorphic rock can be melted into what?
What is magma
300
Relative dating is not the most _______ dating method
What is exact or reliable
300
Sonny is 34 and Cher is 29. Is this relative or absolute dating?
What is absolute
400
Radioactive decay happens at a _________ rate.
What is constant
400
If applied with heat and pressure, Igneous rock will morph into what rock?
What is Metamorphic rock
400
Relative means what?
What is compared to something else
400
Cady is shorter than Regina. Is this relative or absolute dating?
What is relative
500
Radioactivity is what?
What is the emission or radiation or particles cause disintegration of an atomic nucleus
500
What are the three agents of metamorphism?
What is heat, pressure, and hydrothermal solution
500
Absolute means what?
What is considered independently and not compared to something else
500
Metamorphism means what?
What is "change form"