1. 2/12 & 2/ th Grade Agenda
Learning Objective: Learn about Index Fossils
Collect HW: Reading & Notetaking p. 133 – 134
Pass back graded HW & Test & Grade Printout
Video: Walking with Monsters before Dinosaurs
Textbook reading: p
HW: Reading & Notetaking p
HW: Signed Grade Printout
Reminder Science Fair Board due 2/24 & 2/25(50 Points)

2. Reflection
Prompt: Write 3 questions that you have about Earth’s Geological history.

3. Science Fair Project (50 Points)

4. Science Fair Project (50 Points)
Title: 3 points
Question: 3 Points
Hypothesis : 3 Points
Background: 3 Points
Materials: 3 Points
Procedures: 3 Points
Data Table: 3 Points
Graph: 3 Points
Bibliography: 2 Points
Results: 3 points
Discussion: 3 Points
Conclusion : 3 Points
Display Decoration: 5 Challenging: 5 Points
Scientific Validity: 5

5. Reflection
Prompt: Go to the back of the room and copy a paragraph of the “discussion” section from the Science Fair Boards.

6. What are the Three Types of Rocks?

7. Rock Cycle

8. Scientists who study fossils are called….
Paleontologists

9. Fossils in which minerals replace all or part of an organism is called…
Petrified Fossils

10. What is relative age of a rock?
The relative age of a rock is its age compared to the ages of other rocks

11. What is the absolute age of a rock?
The absolute age of a rock is the number years since the rock was created.

12. Which layer is the oldest layer of rock?
Bottom Layer is the Oldest Layer
Law of superposition: In horizontal sedimentary rock layer the oldest layer is at the bottom. Each higher layer is younger than the layers below it.

13. What is Igneous Intrusion?
Igneous Intrusion forms when magma cools and hardens beneath the surface
Igneous intrusion is always younger than the rock layer around and beneath it.

14. Which is older? The fault or the rock layer?
A fault is a break in earth’s crust.
A fault is always younger than the rock it cuts through.

15. Why is there gaps in the Geologic Record?
Unconformity is a gap in the geologic record.

16. What is an index fossil?
Index fossils help geologists match rock layer
To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed only briefly.

17. Which fossils are index fossils ?
Trilobite
Ammonite