WorksheetsGeologic Time Review
Total questions: 20
Worksheet time: 11mins
About how old do scientists believe Earth to be?
4.5 Billion Years Old
4.5 Trillion Years Old
4.5 Million Years Old
4.5 Thousand Years Old
When you look at Earth's entire history, how long have humans been around?
We've been here the whole time, 4.5 billion years
We've been here for most of the time, about 2 billion years
We're pretty new, humans have only been around for about 200,000 years
What gas did cyanobacteria release into the atmosphere that helped life form?
Oxygen
Helium
Carbon Dioxide
Sulfur
What era are we currently living in?
Cenozoic Era
Paleozoic Era
Mesozoic Era
Which era was the "age of reptiles"?
Cenozoic Era
Mesozoic Era
Paleozoic Era
What law tells us the relative age of rock layers?
The Law of Superposition
The Law of Radiometric Dating
The Law of Rock Layers
The Law of Fossils
True or False: A fossil found towards the surface of Earth is older than a fossil found deep underground?
True
False
Where are the youngest rock layers found?
At the top of the strata, close to the surface of the Earth
Deep underground, at the bottom of the rock strata
In the middle of the rock strata
What is the name of the process scientists use to find the EXACT age of rock layers?
Radiometric Dating
Rock Science
Relative Dating
True or False: All of Earth's water came from tiny crystals carried inside of meteors that collided with Earth.
True: It took years and years for enough meteors to hit Earth to give us all of the water we have today.
False: That's just crazy, there's no way that could've happened!
What is snowball Earth?
Earth's longest and coldest ice age where much of Earth's surface was covered in ice
A giant snowball fight that humans had when they first appeared
A period of time when Earth flew through the universe like a snowball
What is the name of the supercontinent that broke apart to form the seven continents we have today?
Pangaea
Paleologica
Cenozoa
Precambria
What force causes the plates on Earth's surface to move?
The heat from the Earth's core
The pressure from the atmosphere
Humans drilling on the land
What was one of the main reasons dinosaurs went extinct?
Humans hunted them into extinction
A giant asteroid hit the Earth
All of the water on Earth dried up
What is another scientific name for the different layers of rock?
(a)
What is the scientific word for the preserved remains or impressions of living things within rocks?
(a)
What type of rock are fossils usually found in?
Sedimentary
Igneous
Metamorphic
What is the largest chunk of time that we put on our Geologic Timelines?
Precambrian Time
Cenozoic Era
Mesozoic Era
Paleozoic Era
Looking at this rock strata, which layer would be the oldest?
A
B
C
D
After looking at this picture of rock strata, which one of these statements is true?
The fossil in layer C is older than the fossil in layer A
All of the fossils are the same age
The fossil in layer A is the oldest of all the fossils
All of these statements are true
