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WorksheetsAGE OF THE EARTH
Total questions: 20
Worksheet time: 10mins
Fossil Fuels are
pieces of rock that have been compacted many times
rock that contains 50% plant and animal remains
metamorphic rock
fuels that form from the remains of plant and other organisms that were buried and altered over million of years
The Earth is about __________yeras old.
50.6 million years
4.5 billion years old
4.5 million years old
4.5 trillion years old
Who use the geological time scale to study the history of the Earth systematically.
Scientist
Biologist
Geologist
Botanist
Which is not the characteristics of the geological time scale
events are arranged in a chronological order
divided into four eras
each era is further divided into years
each era is further divided into smaller periods
To determine the age of the Earth, scientists measure the age of geological samples such as______, ______ and minerals
plants
rocks
animals
meteorites
What is the techniques using by Scientist to determine the age of the Earth?
Selective dating
Chemical dating
Relative dating
Absolute dating
Fossils contain __________ compound.
Magnesium-14
Carbon-12
Carbon-14
Magnesium-12
How can scientist find out the existence of the creature in the diagram?
History books
Movies
Legend
Fossils
Which of the following answers are Era? (tick more than 1)
Cenozoic
Paleozoic
Mesozoic
Methozoic
Often named after places where rocks and fossils of that time were found, these are shorter periods of Earth's history that divide each era:
history
periods
time scales
time lines
A scientist was digging for fossils along a rocky cliff. The scientist discovered trilobites fossils (an ancient sea creature) in rocks at two different locations. What can be determined about the locations based on the fossils?
The locations have not changed
The locations exist at a divergent boundary
The locations were once underwater
The locations are completely unrelated
