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WorksheetsEarth's Features Chapter 3 questions
Total questions: 10
Worksheet time: 6mins
Scientists find dinosaur fossils in the bottom rock layers of a cliff and mammal fossils in the middle rock layer of the cliff. Which could best be concluded from this evidence?
dinosaurs ate plants
dinosaurs were eaten by the mammals
dinosaurs lived on Earth before the mammals
dinosaurs and mammals lived at the same time
How does the scientist know about different types of plants that lived long ago?
she takes photos of fossils and saves them
she listens to the stories people tell about fossils
she finds fossils and makes inferences about them
shse studies fossils because all of the organisms are still alive
Scientists observe rock layers to determine the age of the rocks and what order they formed in. What else can a scientist learn from observing rock layers? Select 2 of the best answers
how the environment changed overtime
when people lived
where people built homes
what animals lived in the environments
If the top layer was "X", the middle layer was "Y", and the bottom layer was "Z"; which layer is the newest (youngest)?
layer "Y"
layer "X"
layer "Z"
If a scientist was searching for fossils on a mountain and discovered a fish fossil, what could they learn about the past environment?
it was a forest environment
it was a body of water environment
it was a mountain environment
it was a desert environment
If there were two different types of sedimentary rock, would they form in the same rock layer?
Yes
No
How does a fossil form?
Geologists forming observations
When an organism dies and is covered with sediment that turns into rock
Rock layer becomes thicker
Organisms live in the rock
What does different sedimentary rock layers in a place mean?
That the environment in that place has changed
Different organisms live there
When an organism dies
Geologists make observations
What are two things you need to make an inference?
past knowledge (what you already know)
model
observations
argument
How does a sedimentary rock form?
Organisms die there
When sediment sinks and builds up in water, compacts under more sediment and cements over time
Animals dig up sediment
