What is organic matter (decaying grass, plants, and animals, nutrients).
100
The word "extinct" means?
What is an organism which no longer exists.
100
Every rock is made of ______________?
What is sediments and minerals.
100
What are the three types of rock?
What is igneous, metamorphic, and sedimentary
200
What causes rocks to change during the metamorphic stage?
What are heat and pressure.
200
What causes rocks to become sediments?
What is erosion and weathering.
200
When a shell, animal, or plant is pressed into the mud it creates a ________________.
What is a mold.
200
What is a rock that is several different types of rocks cemented together?
What is sedimentary rock or conglomerate
200
How are sedimentary rocks formed?
What is by layers of sediment eroding, collecting, compacting, and cementing together of millions of years.
300
Name three types of Igneous rock.
What are pumice, granite, basalt, obsidian
300
What is the bottom layer of soil called?
What is bedrock.
300
What do fossils help us learn about prehistoric life?
What is size of extinct animals, where they lived, possibly what they ate, are they like any animals or plants we have today?
300
After an impression or "mold" is created what happens when minerals or sediment fills in and creates this...
What is a "cast" of the impression.
300
What would cause Utah to have prehistoric fossils of sea life?
What is the prehistoric Lake Bonneville
400
Which type of rock is most likely to contain fossils?
What is sedimentary rock
400
The middle soil under the topsoil is called.
What is subsoil.
400
When an insect gets stuck in sap this eventually become what?
What is Amber.
400
All living things are considered to be
What is organism.
400
How would freezing water make rocks weather?
Freezing water (ice) collects in cracks of rock, as it expands (freezes) breaking the bedrock and large rocks into smaller rocks this causes "weathering".
500
Which two types of rocks have the least in common? What are the differences between these two types?
Igneous and Sedimentary.
500
What is the best soil to plant seeds? Why?
What is topsoil, because it has minerals, it's fluffy, it has water, air, and is the perfect soil to help seeds germinate and grow.
500
What are 3 ways fossils are created.
What is preserving (under the layers of soil), what is mineral replacement (when minerals replace the bones, parts in mold, an impression (such as foot prints or leaves).
500
Weathering definition?
What is breaking down bedrock, or rocks into smaller rocks.
500
What do scientist believe caused the dinosaurs to become extinct?
What is an asteroid hitting the earth, what is global climate change, continents separating.