Topic 4 time and Era

This is a very long time in history, usually millions of years. What is it called?

• Million

• Period

Dinosaurs lived on Earth millions of ............ ago.

• Periods

• Years

The dinosaur lived during the Jurassic __________ .

• Period

• Million

This green part of a plant falls off in autumn. What is it?

• Leaf

• Flower

This is a small, green plant that grows in forests and near water. What is it?

• Flower

• Fern

This is a colorful part of a plant that has petals. What is it?

• Leaf

• Flower

This small creature has six legs and can fly. What is it?

• Bird

• Insect

This animal has wings and can fly. What is it?

• Mammal

• Bird

This group of animals includes lions, tigers, and humans. What are they?

• Mammals

• Reptiles

This animal has scales and lays eggs, like a snake. What is it?

• Reptile

• Mammal