Show:
EARTHS HISTORY
MINERALS
GRAND CANYON
TIMELINES
NAME THAT ROCK
100
Name one of the disasters that killed the dinosaurs?
What is a meteor?
100
Name the three types of rocks?
What is igneous, metamorphic and sedimentary rocks?
100
how deep is the average depth of the grand canyon
What is 1 mile
100
were is the now on a time line located?
What is the front of a time line?
100
this rock is light and can float.
What is pumice
200
when did insects first appear?
What is 300 million years ago.
200
This makes rocks fizz?
What is calcium carbonate?
200
How long is the Grand Canyon?
What is 270 miles long
200
when did modern humans appear?
What is 200,000 years ago
200
What is a black rock that has no crystals on it?
What is obsidian.
300
Name the river that helped form the grand canyon.
What is the Colorado river.
300
why does obsidian not have crystals on it?
What is the lava cools so quickly that it does not have time to form?
300
How long did it take for the grand canyon to form?
What is 16 million years to 17 million years?
300
when did trilobites first appear?
What is 521 million years ago (early Cambrian)
400
name the rock that is not likely to have a fossil in the rock.
What is igneous and metamorphic rocks.
400
How deep is the Grand Canyon?
What is 18 miles deep
400
when did dinosaurs go extent?
What is 65 million years ago.
400
This rock has dead marine life in it and fizzes when calcium carbonate is drooped in it.
What is limestone
500
Name all the layers of earth.
What is crust,mantle,inner and outer-core.
500
How many layers are in the Grand Canyon?
What is 10 layers.
500
How long did the Mesozoic era last?
What is about 180 million years.