Fossils and Life on Earth

_______ are the preserved remains or traces of living things.

• bones
• fossils
• artifacts
• organic matter

Fossils can provide evidence of how life has changed over time, how Earth's surface has changed, and clues about what past environments were like.

• True
• False

In what type of rock would you typically find fossils?

• igneous
• metamorphic
• sedimentary
• rocky

Most fossils form from animals or plants that once lived in or near _____________

• deserts
• ice tundras
• water
• forrests

Which parts of an organism are more likely to fossilize?

• the soft parts - skin, muscle
• the hard parts - bones, shells, stems
• all parts can become fossilized easily because the organism becomes buried by sediments

A _______ is a hollow area in sediment in the shape of an organism or part of an organism.

• mold
• cast
• petrified fossil
• trace fossil

A _______ is a solid copy of the shape of an organism.

• mold
• cast 
• petrified fossil
• trace fossil

_______________ are fossils in which minerals replace all or part of an organism.

• carbon films
• trace fossils
• petrified fossils
• amber

These fossils provide evidence of the activities of ancient organisms.

• petrified fossils
• trace fossils
• molds
• amber

A dinosaur track, a trail, and burrow are all examples of

• casts
• molds
• trace fossils
• preserved remains