1. Thursday 3/21/19
Bell Ringer: Look back at the My Planet Diary from yesterday’s homework. Would you say that Earth’s history has consisted mostly of the presence of people or bacteria?

2. Geologic Time Scale
The time scale on the right shows the key pieces of evidence that scientists use to divide up the geologic time scale.

3. What to study for your test
Fossils
ways in which fossils form
different types
Geologic Laws of Relative Dating-
interpret sequence of rock layers
explain with evidence and reasoning (geologic law)
Geologic Time Scale
how are fossils and rock layers used to describe Earth’s history
how are exact ages used to estimate ages of fossils.

4. Fossil Review – Quiz your self!
Quizlet – link on my webpage
Go to unit 6 and today’s date
Click on the quizlet
You will see choices for different ways to quiz yourself.
Do the FLASHCARDS first to review.
Next do the TEST. Some may be about facts we have not studied. Those ones will not be on the test tomorrow.
Try the MATCH

5. How old are the two fossils (A & B) contained in these rock layers
How old are the two fossils (A & B) contained in these rock layers? Explain how you were able to come to this conclusion.
495 mya A
510 mya
520 mya B
545 mya

6. Pick 2 rock layers. Describe the story of each rock layer
Pick 2 rock layers. Describe the story of each rock layer. How was it originally? How has it changed. What is it’s relative age? Include the appropriate geologic laws in your story of each layer.

7. Now make your own rock layer diagram
Create a rock layer diagram that uses two different geologic laws to figure out the sequence.
In 8 minutes you will swap with a classmate and quiz them using your rock sequence.

8. Take your 1. Arch Book 2. Spiral Notebook 3
Take your 1. Arch Book 2. Spiral Notebook Investigation Packets to STUDY