WorksheetsAge of the Earth
Total questions: 25
Worksheet time: 25mins
Which layers are correctly paired by age?
R and II
P and VI
R and VI
P and II
Which is true about Absolute Dating?
Using a radioactive sample to determine the age in years of a sample
Using a radioactive sample to determine the approximate age of a sample
Only samples of Carbon-14 can be used
Only samples of Uranium can be used
Which is the correct order of events? OLDEST TO YOUNGEST
C, B, A, D, E
E, D, A, B, C
B, D, E, A, C
A, B, C, D, E
Carbon has half life of 1,500 years. You determine a sample of Carbon to be 1,500 years old, how much of the isotope REMAINS?
50%
100%
25%
12.5%
The age of the Earth is __________.
4.6 billion years old
3.6 billion years old
5.6 million years old
4.6 trillion years old
What is the approximate age of the Earth?
4.6 Billion Years
100 years
500 Million years
2.5 Trillion Years
How old is the Earth?
4.6 billion years
13.7 billion years
4.6 million years
13.7 million years
The earth is approximately _____ years old.
3.2 million
4.5 billion
1.7 billion
6.8 million
The geologic time scale represents Earth's ________ year history.
2.5 million
9 million
1 billion
4.6 billion
Earth's age is...
4,000 years old
4.6 Billion years old
4.6 million years old
400,000 years old
Scientist think the Earth is ___ years old.
4,500
45,000
4.5 million
4.5 billion
T/F: Geologist use radioactive dating to find the absolute age of rocks
True
False
What is the estimated age of the Earth according to scientific consensus?
4.5 billion years
3.5 billion years
2.5 billion years
1.5 billion years
Which method is commonly used to determine the age of the Earth?
Radiometric dating
Carbon dating
Dendrochronology
Thermoluminescence
What element is primarily used in radiometric dating to estimate the age of the Earth?
Uranium
Carbon
Potassium
Argon
The age of the Earth is determined by dating which type of rocks?
Igneous rocks
Sedimentary rocks
Metamorphic rocks
Limestone
Which isotope of Uranium is used in dating the age of the Earth?
Uranium-238
Uranium-235
Uranium-234
Uranium-236
What is the half-life of Uranium-238, used in dating the Earth?
4.5 billion years
1.5 billion years
2.5 billion years
3.5 billion years
Which scientist is credited with first proposing the Earth is billions of years old?
James Hutton
Charles Darwin
Isaac Newton
Albert Einstein
What is the significance of zircon crystals in determining the Earth's age?
They contain uranium, which can be used for radiometric dating
They are the oldest known minerals on Earth
They are found in all types of rocks
They are used in carbon dating
How does the decay of radioactive isotopes help in determining the age of the Earth?
By measuring the ratio of parent to daughter isotopes
By measuring the amount of carbon-14
By analyzing the color change in rocks
By observing the physical size of the crystals
What is the primary reason scientists believe the Earth is about 4.5 billion years old?
Radiometric dating of meteorites
Carbon dating of fossils
Dendrochronology of ancient trees
Thermoluminescence of pottery
Which of the following is NOT a method used to estimate the age of the Earth?
Carbon dating
Radiometric dating
Dendrochronology
Ice core sampling
What role do meteorites play in determining the age of the Earth?
They provide a reference age for the solar system
They contain fossils that can be dated
They are used in carbon dating
They are used to measure Earth's magnetic field
Why is carbon dating not used to determine the age of the Earth?
Carbon dating is only effective for dating materials up to about 50,000 years old
Carbon dating is inaccurate
Carbon dating requires living organisms
Carbon dating is too expensive
