Exploring Extinct Animals in Australia

What does it mean when an animal or plant is extinct?

• It has moved to a new country

• There are no more of that animal or plant left alive on Earth

• It is sleeping for a long time

• It has changed colour

How do we learn about animals and plants that lived a long time ago?

• By reading old books

• From their bones and fossils

• By watching them in the wild

• By asking people who saw them

About how many years ago did dinosaurs become extinct?

• 6,500 years ago

• 65,000 years ago

• 65 million years ago

• 650 million years ago

What are two possible reasons scientists believe caused the extinction of dinosaurs?

• Floods and earthquakes

• Asteroid crash or giant volcano eruption

• Too much rain and snow

• Lack of food and water

Who studies dinosaur bones to learn about how they lived?

• Botanists

• Astronomers

• Palaeontologists

• Geologists

What do sharp teeth on a dinosaur skeleton tell palaeontologists?

• The dinosaur was a plant eater

• The dinosaur was a meat eater

• The dinosaur could fly

• The dinosaur lived in water

What is a carnivore?

• An animal that eats only plants

• An animal that eats both plants and meat

• An animal that eats only meat

• An animal that eats insects

What kind of teeth did plant-eating dinosaurs (herbivores) have?

• Sharp teeth

• Flat teeth

• No teeth

• Pointed teeth

What were flat teeth used for by herbivorous dinosaurs?

• Chewing meat

• Stripping and grinding leaves from trees

• Cracking bones

• Catching fish

What happened in Australia after the dinosaurs became extinct?

• All animals disappeared

• Huge mammals began to flourish

• Only birds survived

• The climate became very cold