Fossils

Front

What might a fossil reveal about its past environment?

Back

The environment was underwater for a long period of time.

Front

Which of the following is true about the conditions necessary for fossils to form?

Options:

Fossils are found only in parts of the world where there is water.

Fossils are found only in parts of the world with volcanoes.

Fossils are found all over the world, mostly in water.

Fossils are found all over the world, mostly in rock.

Back

Fossils are found all over the world, mostly in rock.

Front

The picture shows a tooth fossil of the extinct Megalodon shark next to teeth from a great white shark, which is still found today.

Back

Sharks were once larger than the sharks that are living today.

Front

Scientists discovered the fossilized remains of an unidentified animal. They can tell from its remains that it had gills and fins, but no legs. What conclusion about the animal can they draw from the evidence?

Back

It lived in the water all the time.

Front

Ways an organism can become a fossil: point U, point X, points W and Z, points V and Y

Back

points W and Z

Front

Order of how an organism becomes a fossil:

1. The body is buried in sediment.

2. Sediment builds around the body.

3. The hard parts of the body decay.

4. Minerals and water fill in empty spaces.

5. Minerals and sediment harden.

Back

1. The body is buried in sediment.

2. Sediment builds around the body.

3. The hard parts of the body decay.

4. Minerals and water fill in empty spaces.

5. Minerals and sediment harden.

Front

What is the best way to create a model of a fossil? Options: making a footprint in sand and filling it with clay, making a footprint in mud and filling it with water, pressing a hand into snow and taking a picture of it, pressing a hand onto the sidewalk and tracing it with chalk.

Back

making a footprint in sand and filling it with clay

Front

What must happen to an organism's body for it to become a fossil?

Back

It must be buried right after death.

Front

What does the picture of a fossil of a leaf show?

Back

the size of the leaf

Front

Which step is missing from the model of how a fossilized animal track forms, and where should it be placed? Options: Before the sediment is deposited, the animal must die. Before the rock layers form, the sediment must be washed away. After the track is made, the print must harden in the mud. After the print is exposed by erosion, the animal's bones must be removed.

Back

After the track is made, the print must harden in the mud.