Bill Nye Fossils

What percent of all living things on Earth are now extinct?

• All things that have ever been alive on Earth are extict.

• 70%

• 90%

• 50%

The opposite or pair of the molds are called the 

• rocks

• sediments

• casts

• minerals

Where is the La Brea tar pit located?

• San Diego, CA

• Los Angeles, CA

• Daly City, CA

• San Francisco, CA

How old are some of the oldest dinosaurs?

• 150 million years

• 15 million years

• 150 billion years

• 15 thousand years

The cake represents the different...

• layers of rocks 

• layers of the ocean

• layers of the atmosphere

What made scientists think birds and reptiles are related?

• they have feathers and scales

• they have scales and flippers

• they have scales and wings

• they have wings and are warm blooded

What is the biggest key to making fossils?

• bone type

• time