Science CA #3

Why do bone and teeth remain as part of some fossils?

• They are white.

• The parts are hard.

• Bones are big.

• Bones decay easily.

Which animal part would MOST LIKELY become a fossil?

• lung

• fur

• muscle

• bone

Fossils of fish are found under the land where cows now live. What does this tell you?

• Fish used to live on the land.

• The fish were dropped by flying birds.

• This land was once under water.

• Farmers fed the fish to the cows.

Which can scientists learn from the study of fossils?

• why plants need sunlight

• how volcanoes make rocks

• what plants lived long ago

• when the next earthquake will happen

What are the hardened remains of living things that have died a long time ago?

• minerals

• rocks

• fossils

• extinct

Why are there more animal fossils than plant fossils?

• Plants have softer parts than animals.

• There were more animals than plants.

• Plants are larger than animals.

• Animals ate all the plants.

Which type of fossil would look exactly like an actual body part of a once-living thing?

• trace

• cast

• mineral

• footprint

A fossil was found and had a mouth full of sharp, pointed teeth. What can you infer about that animal?

• The animal lived in the ocean.

• The animal is related to sharks.

• The animal was a meat-eater.

• The animal only ate fruits and vegetables.

Some scientists think that a meteor caused the dinosaurs to die and become _______________.

• alive

• fossils

• extinct

• organisms

How long does it take for a fossil to form?

• 550 years

• 790 years

• 15 billion years

• thousands or even millions of years