Fossils and Geologic Time

Which of the following is NOT an example of a fossil?

• a petrified dinosaur bone
• a footprint captured in mud
• a seashell found on the beach
• an insect stuck in amber

In which kind of rock do we usually find a fossil?

• sedimentary  rock
• metamorphic rock
• igneous rock

The oldest rocks are on the bottom and the rocks become progressively younger toward the top

• uniformitarianism

• natural selection

• law of superposition

• index fossils

A record of the geologic events and life forms in Earth's history.

• index fossil
• half-life
• radioactive dating
• geologic time scale

In horizontal layers of sedimentary rock, each layer is older than the layer above it.

• mass extinct
• geologic time scale
• era
• law of superposition

According to the law of superposition, which layer is the youngest?

• A
• B
• C

According to the law of superposition, which layer is the oldest?

• A

• B

• C

Which is evidence for continents being connected at one time? (more than one must be selected)

• similar fossils on different continents

• homes and buildings

• similar layers of rocks in similar order

• cave drawings

Why do bones and teeth remain as part of some fossils?

• they are white
• bones are large
• the parts are hard 
• bones decay easily

Correctly sequence the layers of rocks oldest to youngest

• C, E, D, A, B

• C, E, D, A, B

• C, E, D, B, A

• A, B, C, D, E