WorksheetsEarth History post test make up
Total questions: 17
Worksheet time: 16mins
The single land mass that existed about 245 million years ago is named what?
Fossil
Pangaea
Bob
Tectonic plates
The half-life Carbon-14 is 5,700 years. How much parent material is left after 5,700 years?
75%
50%
25%
0%
The absolute age of an igneous rock can best be determined by ...
comparing radioactive isotopes
comparing crystal sizes
comparing the position of rock layers only
The bottom layer of rock is
the oldest
the youngest
Ice cores are most useful for determining
the atmospheric composition of the past
the number of species alive in the pas
What kind of diet animals ate
Which layer of rock is most likely the youngest?
A
D
B
C
The age of the Earth is measured in _______ of years.
millions
billions
thousands
hundreds
Which statement is NOT true?
Humans and dinosaurs lived at the same time
The continents were once combined in a supercontinent called Pangaea
Continents move slowly over time
Dinosaurs lived before humans emerged
Which of these provides the BEST evidence that the distribution of Earth’s oceans has changed over time?
Hot spots on ocean floors.
seismic activity (earthquakes) along plate boundaries.
sediment buildup on continental slope.
marine fossils found on land masses.
Millions of years ago, four aquatic organisms died, and their remains came to rest on Earth’s surface beneath the water. Which of the organisms could MOST likely be studied today using fossils? (Think about where it is found and what best forms fossils).
1
2
3
4
What is the Half life of this isotope?
5 seconds
10 seconds
15 seconds
20 seconds
