Mississippi Science E.8.7

E.8.7 is a cluster heading. These are the individual standards under it.

• E.8.7.1

  Use scientific evidence to create a timeline of Earth’s history that depicts relative dates from index fossil records and layers of rock (strata).

• E.8.7.2

  Create a model of the processes involved in the rock cycle and relate it to the fossil record.

• E.8.7.3

  Construct and analyze scientific arguments to support claims that most fossil evidence is an indication of the diversity of life that was present on Earth and t...

• E.8.7.4

  Use research and evidence to document how evolution has been shaped both gradually and through mass extinction by Earth’s varying geological conditions (e.g., c...

01

What Students Need to Do

Students use rock layers and index fossils to put events in order without assigning exact years. They model how rocks change and explain when fossils are preserved or lost. They use fossils and rock clues to compare past and present life, including gradual change and mass extinctions.

02

What Mastery Looks Like

Students align rock columns using a shared index fossil and explain which layers are older. They draw a rock-cycle model showing how sediment can preserve a fossil and melting can destroy it. They use fossil evidence to connect ancient and living organisms and explain both gradual change and sudden losses.

03

Common Misconceptions

Students may think index fossils give exact dates, or that any fossil can be used to match layers. They may think fossils form in lava or survive melting. They may assume life always changed at the same rate, with no sudden losses during mass extinctions.

04

How to Assess It

On an exit ticket, sketch column A with a trilobite below an ammonite and column B with an ammonite below a mammal fossil. Ask students to order the fossils from oldest to youngest and explain how the shared ammonite layer helps.

1. 01

   Press shells into stacked clay layers, then sketch how burial, uplift, and melting would affect the prints.

2. 02

   Show a fossil-count chart across the asteroid-impact boundary; ask what changed suddenly and what evidence might show slower change earlier.

3. 03

   Give pairs two rock-column cards with a shared ammonite fossil; have them align the cards and order the remaining layers.

4. 04

   Show a photo of fossil-bearing limestone in a kitchen countertop; ask what its marine fossils say about the stone's origin.

• E.8.9A

  Students will demonstrate an understanding that physical processes and major geological events (e.g., plate movement, volcanic activity, mountain building, weat...

• ESS.2B

  Students will develop an understanding of the history and evolution of the earth.

• E.3.7B

  Students will demonstrate an understanding of the composition of Earth and the processes which change Earth's landforms.

• FB.5

  Students will demonstrate an understanding of Earth’s fossil record and its indication of the diversity of life over time.