Science

A person who studies life in the past is a _______?

A dinosaur's footprint is a kind of _________.

Living things that are close to becoming extinct are ___________.

Many living things could not live when Earth changed. They became ____________. ___________means to die out.

How energy from food passes from one living thing to another is called a ________.

_______ is a very long amount of time.

Which dinosaur is a meat-eater? Allosaurus, Iguanodon, or Ankylosaurus?

The oldest plant and animals fossils found are from the _________.

The __________ is called the "Age of Reptiles."

The __________ is called the "Age of Mammals."

Animals need _________ where they can be safe from their enemies.

Which animals is close to becoming extinct? Whales, West Indian manatees, or elephants.