Show:
What Time is It?
Pieces of the Past
How old are you?
The Changing Earth
Anything Goes!
100

What is the largest unit of time for Earth's history?

Eon

100

What is a trace piece of evidence from the past?

fossils

100

What is a general comparison of how old something is to other items?

relative age

100

What is the name of the supercontinent separated during the Mesozoic Era?

Pangaea

100
geologic time scale
What is the organized chart of Earth's history?
200

Carboniferous What is the time period with the largest plants and coal production?

Carboniferous

200

Who won the 2024 college football national championship.

The Ohio State University

200
index fossils
What fossils are used to determine age of surrounding rock?
200
Ice Age
What is a climate change that lowers temperatures of Earth?
200
ice core
What sample is used to determine Earth's historical climate changes?
300

In what period did the dinosaurs became extinct?

Cretaceous

300
amber, ice, and tar
What are materials that preserve original remains?
300

How many state championships does Ohatchee High School have?

1

300

What is a gas produced during photosynthesis and required by humans to survive?

Oxygen

300

What is the time when the first jawed fish appeared?

Silurian

400

What is the time that humans are a part of?


Quaternary

400

What is the rock type most fossils are found in?

sedimentary rock

400
radioative dating
What is a way to determine absolute age?
400
uniformitarianism
What is the idea that Earth is always changing?
400

What is considered to be the beginning of the reptile age?

Triassic

500

What eons make up the Precambrian?

Hadean, Archean, and Proterozoic

500

What are examples of trace fossils?

footprints, animal holes, and feces

500
half-life
What is the length of time for half of the atoms of a radioactive element to decay?
500

What is the location of most life on Earth during the Paleozoic Era?s

ocean

500

What is a single cell with no nucleus?

prokaryote