Science Test Tomorrow

A _____ is a valley with steep sides made of rock.

• canyon

• fossil

• rock layer

• floodplain

A _____ is an exposed section of rock where a fossil was found.

• canyon

• sediment

• rocky outcrop

• cement

A _____ is a scientist who studies the processes and materials that form the solid part of Earth.

• fossil

• geologist

• rock layer

• biologist

_____ are imprints or parts of animals, plants, and other organisms that have been preserved in rock.

• sediment

• canyons

• cement

• fossils

Rocks and fossils can provide clues about the way Earth changes over time.

• True

• False

_____ is made up of sand, mud, and tiny bits of rock.

• sediment

• cement

• canyons

• fossils

Fossils are formed when rganisms are covered by sediment that falls through water. After the organisms are covered, the sediment around them turns to rock as more sediment builds up on top.

• True

• False

Fossils usually need _____ and _____ to form because water helps minerals replace the original remains. (2 answers)

• water

• mud

• sediment

• wood

_____ is a type of rock formed from sediment that compacts and cements over time.

• Sedimentary rock

• Rock layer

• Fossils

• Rocky outcrop

Compressed means pressed together.

• True

• False