Show:
Rocks
Fossils
Layers
More Rocks
More Fossils
100
How is igneous rock formed.
What is Magma/lava cools/solidifies?
100

What are the type of fossil that makes it easy to tell the age of the rock.

What is trilobites?

100
How can you tell which rock layers are older.
What is depth of layer? (Or deeper layers are older)
100
What is weathering.
What is breaking down of rocks and minerals?
100
What is a fossil.
What is remains of once living things that have been preserved?
200
How is sedimentary rock formed.
What is Compaction and Cementation
200
What is a fossil fuel.
What is any fuel formed from the remains on once-living organisms?
200

True or false: Erosion can be the reason for a gap between the geologic record of layers of rock.

What is true?

200
Three main rock types.
What is igneous, metamorphic, and sedimentary?
200
What is a mold fossil.
What is a hollowed out space in the shape of a once living organism?
300
Difference between a mineral and a rock.
What is minerals are just one mineral, while rock can be many different types?
300
How are fish fossils found in the desert.
What is once there was a body of water there?
300

What is an effect of a large volcanic eruption that produces a large amount of ash.

What is key beds are are formed from the ash?

300

What is a way that scientists can tell the surface of the Earth has changed.

Possible answers: They can examine layers of rocks and the fossils in them, they can see how rock layers change when mountains are formed, they see that rivers can carve and change layers of rock by forming canyons?

300

What is a key bed.

What is a layer of rock with unique characteristics that scientist can easily identify. They help with aging the rock layers and fossils around them?

400

What are the different layers of rock called.

What is strata?

400

What is a way to tell that the land changed from an aquatic environment to a dry, land environment.

What are the deeper layers (older) have fossils of sea creatures, while the layers above (younger) have fossils of land creatures?

400

What do water, wind, ice, heat, plants, and gravity do to rocks.

What is weather/erode?

400
How is metamorphic rock formed.
What is plates collide and heat and pressure change it to Metamorphic rock
400
What is a trace fossil.
What is a fossil that shows how a dead animal changed or lived in their environment?
500

What is how scientists know that rock layers are the about the same age.

What are the layers have the same type of fossils within them?

500

How are petrified fossils made.

What is minerals take the place of cells in a dead organisms remains?

500

What are index fossils.

What are fossils that are only found in one layer of rock and used to determine the age of rock layers?

500
steps of rock cycle, beginning with Weathering.
What is weathering/erosion, deposition, compaction/cementation, melting, solidification
500
Why do we study fossils.
What is to learn about the earth, as well as the plants and animals that lived long ago?