8th Grade Life Science

Lesson Plans for February 22-26

8th Grade Life Science

Lesson Plans for February 22-26

Monday

Objectives:

1.  Describe how scientists determine the relative age of rocks.

2.  State the Law of Superposition.

3.  Describe how geologists use index fossils to date rocks.

Pg 317 Section 2 “Relative and Absolute Ages”

I.  Relative Age of Rocks

  1. Position of Rock Layers
  2. Law of Superposition

II.  Determining Relative Age

  1. Clues from Igneous Rocks
  2. Intrusion
  3. extrusion
  4. Clues from Faults
  5. Gaps in the geologic record
  6. Unconformity

III.  Using fossils to date rocks

  1. Index fossils—Trilobites

Tuesday

Objectives:

1.  Explain hwy the geologic time scale is used to show Earth’s history.

2.  Describe the different units of the geologic time scale.

Pg 303 Section 4 “Geologic Time Scale”

I.  Geologic Time Scale

  1. Eras
  2. Periods
  3. Epochs

**Begin work on Time Period Travel brochures

Assignment—Section review pg 326

Wednesday

Work on Time Period Travel brochures

Objectives:

1.  Interpret data about a selected period in geological time

2.  Apply concepts learned through research in making a travel brochure

3.  Communicate what they learned in a presentation to the class.

Vocab due Friday—Sections 2,3,4,6

Thursday

Objectives:

1.  Identify and describe the major events in Earth’s geologic history.

2.  Identify and describe the major developments of life on Earth.

Pg 334 Section 6 “Eras Earth’s History”

I.  Paleozoic Era

  1. Cambrian explosion
  2. Vertebrates Arise
  3. Life reaches land
  4. Mass extinction ends the Paleozoic
  5. Supercontinent Pangaea

II.  Mesozoic Era—Age of the Reptiles

  1. Triassic Period
  2. Jurassic Period
  3. Cretaceous Period
  4. Mass extinction

III.  Cenozoic Era

  1. Tertiary Period
  2. Quaternary period

Friday

Finish Time Period Travel brochures

Science Standards for Chapter 10

1.  Interpret Law of Superposition of rocks and how it relates to Earth’s age and history.

2.  Describe how Earth’s features are changing constantly by slow and fast processes such as erosion, weathering, deposition, landslides, volcanic eruptions and earthquakes.

3.  Recognize constructive and destructive forces that affect Earth’s history.

4.  Use appropriate math and technology to gather and store and organize data.

a.  Radioactive dating

5.  Use scientific models and describe how smaller experiments in the lab relate to larger real world systems.