7th Grade Science Guide

7.2: Changes to Earth 3 Dimensions & Progressions

Unit 3

of their model of the Earth’s layers.

teacher explanations)

○ 7.2.4e3

DensityInquiryLab B (no teacher explanation space)

Activity: Sorting Earth’s Materials

Objective

Overview

Materials

● I can explain how density of materials impacts the settling of materials.

● Students research the

● Lesson Plan ● Sorting Earths Materials ● Rock samples that can have their volume determined by water displacement: basalt, granite, slate ● Metal samples that can have their volume determined by ruler

density of materials found in Earth’s interior and determine which layer these would be found.

measurement or water displacement: iron, zinc, tin, aluminum, copper

● Rulers ● Water displacement

materials, depending on method.

Activity: Earth’s Interior - Scale Model

Objective

Overview

Materials

● Students create a scale model of the Earth, using information about each layer’s thickness, density, and composition.

● Lesson Plan ● Butcher paper

● I can create a scale model of Earth’s interior.

● Earth Scale Model ● Rulers, meter sticks

Formative Assessment: 7.2.4 Formative Assessment

Phenomena: Seismic Waves Move in Interesting Ways Through Earth

Objective

Overview

Materials