7th Grade Science Guide

7.2: Changes to Earth 3 Dimensions & Progressions

Unit 3

● I can investigate and observe how material moves within a

● Students create a model of convection currents.

● Lesson plan ● Room temp water ● Hot water ● Food coloring ● Small containers ● Trays ● Plastic bins ● Pipettes ● Foamcups

convection cell and how it relates to plate tectonics.

● White paper ● Data Sheets

Activity: Mapping the Ocean Floor

Objective

Overview

Materials

● I can map and create a profle of a simulated seafoor.

● Students are given a simulated seafoor and

● Lesson Plan ● Trash can/bucket ● Wire screen (1 cm openings) ● Finger Paint/ Food Coloring/Ink ● Water ● 25 cm piece of string will small weight attached to oneend ● Masking tape ● Marker ● Graph paper and pencil ● Data sheets ● Meter stick ● Various non-foating objects, such as rocks, bricks, a bowl, etc.

use tools to simulate how scientists map the ocean foor.

Activity: Seafoor Spreading

Objective

Overview

Materials

● I can create a model to show seafoor spreading

● Students construct a paper model that will

● Lesson Plan

illustrate how the seafoor spreads at mid-ocean ridges and is consumed