Show:
HALF LIFE
RELATIVE DATING
EARTH HISTORY
Random
Peacium
100
What fraction remains after 3 half lives?
What is 1/8.
100
See figure 1. Put the layers in order, oldest to youngest.
What is B C D A E
100
How did the moon form?
What is collisions between earth and the accretion of debris surrounding earth
100
Name the only marsupial in North America?
What is possum or opossum
100
What is Mrs. Peace's daughter's name?
What is Avery
200
A sample of radioisotope has a mass of 5 grams after 10 days. If the half life is 2 days long, how much of the sample was there originally?
What is 160 grams.
200
See figure 2. Put the layers in order, oldest to youngest.
What is C B A D E
200
Define superposition.
What is older layers are found below younger layers due the order of sediment deposition
200
How many sig figs are in 5.0670
What is 5
200
Name Mrs. Peace's dogs names (2 names)
What is Carol & Larry
300
A sample of radioisotope has a mass of 400 grams. After 20 days, 12.5 grams of the sample remains. What is the half-life of the isotope?
What is 4 days.
300
See figure 3. Put the layers in order, oldest to youngest.
What is C H E G A F D B
300
According to scientists, how old is our earth?
What is 4.5-4.6 billion years old
300
What type of plate boundary is driven by tension in the rock?
What is a divergent boundary
300
How long has Mrs. Peace been a teacher?
What is 6 years
400
The initial mass of a radioisotope is 10 grams. If the radioisotope has a half-life of 2.75 years, how much remains after 4 half-lives?
What is 0.625 grams
400
See figure 4. Put the layers in order, oldest to youngest.
What is D H A C G F I B E
400
Why do we know there was a major extinction by looking at the layers on rock before and after the KT boundary?
What is fossils found below the KT boundary are not found above it
400
How did the layers of the earth form?
What is differences in density caused the layers to form while the earth was still molten
400
Where did Mrs. Peace go to college?
What is WVU
500
Technetium-104 has a half-life of 18 minutes. How much of a 165 gram sample remains after 90 minutes?
What is 5.15625 grams or ~ 5.2 grams
500
See figure 5. Put the layers in order, oldest to youngest.
What is E G L C H M D J A N K B F
500
Describe earth's conditions right after its formation
What is hot, molten, CO2 in the atmosphere, no life
500
How old is Mrs. Peace's daughter?
What is 7 months old
500
What is Mrs. Peace's favorite color?
What is orange