U6BM: Geologic Timeline and Fossil Record

What period in the timeline contained Crinoids?

• precambrian
• triassic

• Devonian

• Ordovician

Which Era are we currently in?

• Paleozoic

• Cenozoic

• Mesozoic

• Trinozoic

What Period did the first invertebrates show up in?

• Pennsylvanian

• Dystopian

• Cambrian

• Silurian

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

In what period did the dinosaurs die in a mass extinction?

• Cretaceous

• Jurassic

• Mississippian

• Tertiary

Tags

NGSS.MS-LS4-1

Which type of rock are fossils found in?

• Sedimentary

• Complicated

• Igneous

• Metamorphic

Tags

NGSS.MS-LS4-1

What is the difference between radioactive dating and relative dating?

• Ask them their age

• Radioactive (Absolute) Dating

• Where fossils appear in rock layers

• Relative Dating

• Breakdown of radioactive isotopes

• Traditional Dating

Answer explanation

Radioactive dating uses the decay of radioactive isotopes to get an absolute age of a fossil.

Relative dating uses the law of superposition to get an estimated age of a fossil based on the layer of strata it is found in.

Put the series of events in chronological order from oldest to youngest. No spaces, commas, dashes or capitals.

Ex: abcdef

Tags

NGSS.MS-ESS1-4

In which time period are we currently living?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Which fossil is the youngest?

• fossil A

• fossil B

• fossil C

• fossils A and B are the same age

Tags

NGSS.MS-ESS1-4

What is the importance of studying fossils?

• to provide information about how current life forms would exist in previous environmental conditions

• to provide information about how life and environmental conditions may have changed

• to provide information about how previous life forms would exist in current environmental conditions

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2