Geology 1H: Fossils

Most fossils are found in (a)   rock.

• sedimentary
• metamorphic
• igneous

Fossils are the ​ (a)   remains or traces of ​ (b)   things. Fossils provide ​ (c)   of how ​ (d)   has​ changed over time. Fossils can also help scientists infer how Earth's surface has ​ (e)   .

• preserved
• evidence
• changed
• living
• life
• pressure
• dinosaur
• things
• burned

Reorder the following steps in how a fossil forms!

• An animal dies and sinks into shallow water.

• Sediments cover the animal.

• Sediments get compacted over time.

• Rock forms around the animal and preserves it.

• Weathering and erosion eventually expose the animal at the surface.

Organize these options into the right categories!

Groups:

(a) TRUE Statements

,

(b) FALSE Statements

• When an animal dies, soft parts decay quickly.

• Hard parts of animals usually form fossils.

• Hard parts of animals include bones, shells, teeth, and seeds.

• Soft parts of animals usually form fossils.

• Hard parts of animals include woody stems, skins, and organs.

• When an organism dies, soft parts decay slowly.

Label each object correctly based on what type of fossil it represents!

b

a

Mold

Cast

What is the name given to a hollow area in sediment in the shape of an organism (or part of an organism)?

What is the name given to a solid copy of the shape of an organism?

The term petrified means...

• Turned Into Stone

• Animal Copy

• Rocks & Minerals

• Hardened Quickly

• Ancient Remains

Which choice BEST describes the fossil shown?

c

Mold

Petrified Fossil

Cast

Carbon Film

Preserved Remains

Trace Fossil

Which choice BEST describes the fossil shown?

a

Mold

Preserved Remains

Petrified Fossil

Cast

Carbon Film

Trace Fossil