Chapter 15

1) Discuss objective, bellwork, and ask about birthdays!!!2) View and discuss fossil notes 3) Do review activity at the work stations and share-take your books with you to the work stations!4) (Time permitting) Examine fossils!6) COPY INTO YOUR AGENDANo homework

Oct 25, 2012Plan

2

SPI 0807.5.5 Fossils

Silly Thought Four out of every three people…

…have trouble with fractions

Chapter 15

Sedimentary rock and fossils: deeper layers are older than layers above it. So fossils in deeper layers are older than fossils above it. Example below: C is older than B. B is older than A

(See p107)

Notes SPI 0807.5.5 Fossils

Chapter 15

(See p141: Fig 2)

Images SPI 0807.5.5 Fossils

Chapter 15

Index Fossils: A way to date rocks with a relative age, Example: Ammonites fossils (see below)

Notes

Chapter 15

• Trilobites are index fossils (see image on right)

• Trilobites are extinct.

• Their closest living relative is the horseshoe crab.

Index Fossils: Using Fossils to Date Rocks, continued

Notes