What is an imprint made by the outside of a dead plant or animal?
100
Trace Fossil
What is preserved remains of the activity of an animal that lived long ago?
100
Has the least amount of carbon
What is Peat?
100
Bones of animals
What are most likely to form fossils and can help scientists recreate a 3-D image of what the animal may have looked like?
200
Cast
What is the same outside shape as the original living thing?
200
Fossil
What is a preserved remains of a plant, animal, or other organism that lived on Earth long ago?
200
Has the most or highest amount of Carbon
What is Anthracite?
200
Tracks, burrows, droppings, and worm holes
What are all trace fossils?
300
Petroleum
What is crude oil that is the world's most widely used fossil fuel that produces heat when it is burned?
300
Carbon Film
What is a thin covering that is left behind after heat and pressure destroy most of the buried remains of a plant/animal?
300
The sun
What is where most o the energy we use today ORIGINALLY came from?
300
Coal, Natural Gas, and Oil
What are all fossil fuels?
400
Peat
What is dark yellow or brown crumbly material made up of dead swamp plants buried for hundreds of years?
400
Natural Gas
What is a gas know as Methane that is found with petroleum?
400
Sedimentary Rock
What is where most fossils are likely to be found because they were formed when a dead plant/animal was buried quickly by sediments such as sand or mud?
400
One way that scientists find out the age of a rock
What is using the order of the rock layers?
500
Anthracite
What is a hard, black form of coal?
500
Fossil Fuels
What are resources such as coal, natural gas, and oil, that formed from the remains of once-living organisms?
500
Petrified Tree
What is a tree where the wood is replaced with minerals?
500
One way that scientists find out the age of a rock
What is studying the particles that decay in the rock?