Fossils Are the Remains of Ancient Life
The oldest fossils are usually found
What is deep underground?
A step in the process of how animals become fossils
What is sediment covers an animal's remains?
Fossils are found along a coastline. These fossils discovered most likely were uncovered
What is erosion by water?
If a scientist finds fossilized trees in what is now a desert area, the fossils are evidence that the
What is the climate there was once rainy?
A piece of evidence of an animal or plant that lived a long time ago.
What is a fossil?
Chen reads a book on how Earth has changed over time. He sees a picture of fossils of ancient sea organisms in a place that is now a desert. The change most likely that happened is
What is the climate became drier?
A scientist is looking for fossils high in the mountains. In the top layer of rock, she finds a plant fossil. In deep rock, she uncovers a small trace fossil. After doing research, she learns that it is a fossil of a trilobite, an organism that lived underwater millions of years ago. Which of these fossils is likely older
What is the trilobite?
The story of how life on Earth has changed, revealed by the fossils of plants and animals found all over the planet
What is a fossil record?
Clues that the trilobite fossil gives about the history of the environment in that area is
What is the area was once covered by water and now is mountains?