Science mysteries 1-4 Animals through time

What are items that can be found in a quarry?

• rocks

• shells

• fossils

• glass

Where can older fossils be found?

• the deepest layers of soil

• the top layers of soil

• the middle layers of soil

Why do scientists study fossils?

• to learn about extinct animals and plants

• to learn about how people lived long ago

• to learn about the weather from long ago

• to learn about animals that are currently on earth

Most plants and animals become fossils after they die.

• True

• False

Which are true of fossils?

• They reveal that habitats have changed over time.

• They can be compared to animals today to help us learn about ancient animals.

• They can tell us how an animal moved, what it looked like, and what it ate.

When habitats change, the types of plants and animals change too.

• true

• false

When we look at fossil traits, we can tell the type of animal that existed. If we discover a fossil with fins, we know the animal might be...

• a fish

• a reptile

• a dinosaur

• a mammoth

What does the word dinosaur mean?

• terrifying lizard

• gigantic lizard

• terrifying reptile

• gigantic reptile

Do scientists know for sure what caused the extinction of dinosaurs?

• yes

• no

If we compare footprints, we can tell...

• how fast animals may have moved.

• how hungry animals were.

• how tired the animals were.