Science Bench 3

Use the picture to answer:

This site was an ocean environment before it was a forest.

• True

• False

What natural disaster might explain the formation of these rock layers?

• volcano

• flood

• earthquake

• tornado

In order for a fossil to form there must be

• tornadoes and mountains

• only water

• water and sediment

• a cold climate

Why is water necessary for fossil formation?

• Water helps minerals replace the original remains.

• Water helps the fossils form quickly.

• Water keeps the minerals from replacing the remains.

• Since fossils can only form in dry climates, water is needed for them to be found.

What would be the best way to demonstrate how rainfall helps shape the land?

• Put an ice cube on a plate and melt it in the sun.

• Put a fan in front of the sand and watch it blow around.

• Pour water on a sand pile and watch how it moves the sand around.

• Put a rock in water and watch how much it weathers by the next day.

How can a living organism change the land?

• a prairie dog burrowing into the ground

• a bird building a nest in a tree

• a squirrel climbing a tree

• a fox running through the grass

If you lived near a river, and your city started experiencing more rainfall than usual, what could you do to make sure the river water does not end up getting into your house?

• Consider ideas to increase erosion near your house

• Consider ideas to keep erosion at the same level

• Consider ideas to slow down erosion

• Nothing, there is no way to reduce the risk of erosion from flooding

Which of the following is an improvement that can help people have better protection from natural hazards (problems)?

• weather vanes so you know wind direction

• machines that can identify rocks

• alarms that alert you that your fireplace is too hot

• stream gauges that provide data on possible flooding

Which rock layer is the oldest?

• A

• B

• D

• E

Which rock layer is the youngest?

• A

• B

• D

• E