Fossils and Rocks # 1

Each _________ has its own definite chemical composition.

• igneous

• rocky cycle

• mineral

• relative age

A rock formed from hot, molten rock material that has cooled and hardened is called

• rock salt

• igneous rock

• sedimentary rock

• metamorphic rock

Rocks formed from smaller bits of rocks cemented together are called

• igneous rock

• sedimentary rock

• metamorphic rock

• rock salt

A rock that has been changed by heat and pressure or both is called

• igneous rock

• sedimentary

• metamorphic rock

Scientists use clues from fossils to learn about the

• past

• present

• future

• relative age

What plant or animal dies, the soft parts quickly ____ and eaten

• swallowed

• decay

• drink

• eaten

______ are fossils that are formed or shaped in a mold.

• Casts

• Imprint

• Carbon

• Fossils

Before a fossilized dinosaur can be displayed in a museum, people must first

• remove rocks from the bones

• assemble the bones

• study the bones

• collect the bones

Fossils might be ________ safely for further study after casts are made for display.

• eaten

• polished

• cleaned

• stored

Annual growth rings in ______ tell the age of the fossilized trees.

• animal footprint

• petrified bones

• casts of animals

• petrified wood