Show:
Rocks
Fossils
Principles
Piecing It All Together
Geological Time Scale
100

List the three types of rocks

Igneous, sedimentary, metamorphic

100
Name and define the three types of fossils we care about in this class?

Trace (e.g. footprints), caste (a filled in space with sediments that has left a caste), and mold (an imprint)

100
Compare and contrast uniformitarianism and catastrophism?

Either that the earth changes slowly over time based on the same processes across time or is shaped by sudden catastrophic events

100

What are the pieces of evidence for Earth History we've seen?

Rocks, fossils, and evolution (2 out of 3 is fine)

100

Define Geological Time Scale

What is a system that divides Earth's history into intervals of time defined by major events or changes of the Earth

200
How do you date the absolute age of a rock?

Radiometric dating

200

Where are fossils found?

Sedimentary rock

200

What is paleontology?

Study of past life such as dinosaurs

200
Explain why absolute dating of sedimentary rocks doesn't work?

Because they are made of small sediments from other rocks so the whole layer won't be properly dated

200

List the order of subdivisions of the GST

Eon > Era > Period > Epoch

300

Name and define the two laws that help with relative dating of rocks?

Superposition (older layers on the bottom) and cross-cutting (what is doing the cutting is younger)

300

How do fossils give evidence for the theory of evolution?

They show how organisms have changed over time

300

Compare and contrast absolute and relative age

One is like the birthday of something and the other is the age as it relates to something (older or younger than)

300

Explain the relationship between dating rocks and fossils?

We can date the relative age of sedimentary rock layers and the absolute age of igneous rocks. Fossils found in the sedimentary rock can be dated. We can also use radiometric dating in certain fossils.

300
What era ran from 542 million years to 251 million years and is known for great changes with plants becoming more widespread and the first animal vertebrates colonizing land?

Paleozoic

400

Explain the chemical properties of certain rock particles that allow scientists to date rocks' absolute age? 

Certain isotopes are radioactive and experience radioactive decay. We can date the half-life of the decay of radioactive material

400

What are the two properties that make a good index fossil?

Widely distributed and lived for a short period of time

400

Explain the theory of evolution through natural selection?

Organisms that are better adapted survive and reproduce and then can change over time. These changes over time results in the evolution of the organism
400

How do scientists piece together what the climate was like long ago?

Using air bubbles in ice cores

400

What interval of time is known as the Age of Reptiles?

Mesozoic

500

Name the two methods that give evidence of rocks being older than 10 million years

Uranium-Lead and Rubidium Strontium

500

Name 3 science jobs related to Earth History we have looked at?

Paleontologist, geologist, ice core scientist, paleobotanist, science journalist

500

The bonus question on your test will be about Shakespeare. Name three plays by Shakespeare.

If you don't name three I'm disappointed in all of you

500

Why are we able to find dinosaurs fossils all over the world?

During the time of the dinosaurs, a supercontinent existed. Over time, the continent broke up and drifted apart. (This is known as continental drift).

500

What is the full GST that we live in? 

Cenozoic Era > Quarternary Period > Holocene Epoch (or Anthropocene Epoch)