Sediment
Name two types of sediment.
Calcium carbonate, sand, gravel, clay, silt
What type of rock do you find fossils in?
Sedimentary rock
In a rock formation, where would you find the oldest layer of rock?
At the bottom
Is the weathering process fast or slow?
It is a slow process.
What is an observation?
Something you notice using the five senses.
What type of sediment becomes sandstone?
Sand
What two types of ocean did we talk about?
Shallow and deep
How does a rock layer form?
The layer forms when sediment sinks and builds up in water, compacts under more sediment and cements over time.
What is the movement of sedimental by natural processes called?
Erosion
What is an inference?
Something that you figure out based on information you already know and observations you make.
What type of sediment becomes siltstone?
Silt
Name an environment (other than ocean) that we've talked about.
Floodplains, beach
In a rock formation, where would you find the newest layer of rock?
At the top
What is it called when sediment is deposited naturally in a new location?
Deposition
Compact means to...
Press together
What type of sediment becomes mudstone?
Clay
How can we tell how old a fossil is?
By determining the age of the rock layer it is in
How long does it take for rock to form?
Thousands to millions of years
What is an example of erosion?
The wind changing the shape of a sand dune by picking up sediment.
What is the difference between stability and change?
Stability is something's ability to maintain a state for an extended period of time. Change indicates a shift in, or an unstable, environment.
What type of sediment becomes limestone?
Calcium carbonate
Name one fossil we've talked about.
Mosasaurus, Lepidodendron, Mortoniceras
What is a rocky outcrop?
A section of exposed rock
Is the breaking down of rocks by natural processes called erosion or weathering?
Weathering
What are the two pieces of evidence used in a scientific argument?
Data and observations