7th Grade Science Guide
7.2: Changes to Earth 3 Dimensions & Progressions
Unit 3
● 7.2.4e3
in how the density of substances affect how they layer and separate to help in the development of their model of the Earth’s layers.
DensityInquirySigns
● Optional graphic organizer: ○ 7.2.4e3
DensityInquiryLab A (with room for teacher explanations) DensityInquiryLab B (no teacher explanation space)
○ 7.2.4e3
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 ● 7.2.4e4
density of materials found in Earth’s interior and determine which layer these would be found.
SortingEarthsMaterials ● Rock samples that can have their volume determined by water displacement: basalt, granite, slate ● Metal samples that can have their volume determined by ruler
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
● Lesson Plan ● Butcher paper ● 7.2.4 e5 EarthScaleModel ● Rulers, meter sticks
● I can create a scale model of Earth’s interior.
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