Classroom rules
Where are the pencils found?
Back of the room
What is superposition
The geological principal that the oldest rock can be found at the bottom and the youngest rock can be found at the top
What is the first step of fossilization?
The plant/animal/organism must die
What is our classroom mascot ?
Otty the sea otter
You are doing a lab and a glass breaks, what do you do?
Tell an adult immediately
How many years is an eon
One billion years
After the organism dies, what happens next?
The soft parts of the organisim decay leaving only the hard parts (bones)
How often should you check aeries
To make sure you have good grades and no missing assignments, at least once a week! More is better :)
Mrs. Tibbitts is talking, but you need to sharpen your pencil, what should you do?
Wait until she is done talking (or wait till a student is done talking), then quietly walk to sharpen your pencil.
What is strata?
layers of rock or sediment that are different from the layers above and below them
What can happen is a fossil is buried too slowly?
It can be eaten, decomposed/rot, or moved around
Where did the asteroid hit that killed the dinosaurs
Off the coast of Mexico
Your partner is talking and does not have a pencil or twig notebook and there is only 30 seconds left on the timer, what should you do?
Remind your partner to get their stuff out
What is deposition
When layers of sediment are naturally dropped on top of one another ex: wind can move dirt and put it on top of rock
Explain how cast fossil works
An organism is buried quickly and the minerals form a mold or cast around it, the organism will decay over a long time
KEY WORD MOLD
What is metamorphic rock
Metamorphic rock is a type of rock that has been changed by intense heat, pressure, or the chemical action
Oh no you got a cold and missed two days of school! What should you do first?
Talk to a friend/partner about what you missed first before coming to Mrs. Tibbitts
A organism/ fossil that is common for that time period that can help identify how old the rock is
Explain how permineralization happens
The pores or holes of the organism are replaced with minerals, and all the tissue of the organism goes away leaving only minerals. Example: petrified wood
KEY WORD HOLES/PORES
Which part of the fossilization process takes the longest?
The actual fossilization part ( permineralization or petrification ), the burial and the dying part are fast