Show:
Fossils
Geological Time Scales
Bell work
Movie Notes
Rocks
100
The remains of a plant or animal preserved in a rock.
What is a fossil?
100
This planet has lasted about 4.5 billion years and has 50 states, and two states in this planet are noncontinuous.
What is earth?
100
The removal and transportation of loose earth material.
What is erosion?
100
This planet will most likely die in the next 2 billion years, and is going through global warming throughout the planet.
What is earth?
100
The three rock types.
What are sedimentary, metamorphic, and igneous rocks?
200
This rock is most likely to contain fossils.
What is a sedimentary rock?
200
This walking and talking organism has lived on earth for about 200,000 years.
What are humans?
200
The setting out of eroded earth material.
What is deposition?
200
This event freezes everything on earth in its way and occurs every 15,000 years.
What is the Ice Age?
200
This makes limestone fizz when hydrochloric acid is dropped onto it.
What is calcium carbonate (calcite)?
300
The rock that melts fossils.
What is an igneous rock?
300
This is the longest era in history.
What is the Precambrian Era?
300
Time scales that show all the different dates, time, and events that went on, using numbers.
What are numeric time scales?
300
This scientist believed earth was slowly cooling down, and he was unaware of radioactivity.
Who is Kelvin?
300
The material that glues the sand together in sandstone.
What is matrix?
400
A fossil that occurs in many different places, but lives for a short amount of time.
What is an index fossil?
400
Time scales that show how different parts of Earth's history compare to the whole.
What are proportional time scales?
400
Mountain building new crust formation and sedimentation. This also builds new landforms.
What are constructive Earth processes?
400
This continent caused "Snowball Earth."
What is Rhodinia?
400
The most common group of minerals that make up 90% of the earth's crust.
What are silicates?
500
A process based on decay of elements to determine a mineral's age.
What is radioactive dating?
500
This animal became extinct 66 million years ago and was believed that oxygen made them so tall.
What is a dinosaur?
500
Weathering by gravity, wind, and water. This also breaks down old landforms.
What are destructive Earth processes?
500
Many of these have hit the solar system that make up earth.
What are meteors?
500
A mineral consists a specific combination of atoms of certain element.
What is a definite chemical makeup?