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Island Explorers Curriculum Home

 

Unit 1

Lesson Plan 1

Lesson Plan 2

Lesson Plan 3

Lesson Plan 4

Lesson Plan 5

Concepts/Objectives | Vocabulary/Background | Activity | Extension

 

Lesson Plan 2

 (Vocabulary/Background)

"SAND AND SOIL STUDIES"

VOCABULARY

Sand: Particles smaller than gravel, but more coarse than silt. Materials are from disintegrated rocks
Soil: The upper layer of the earth which may be dug or plowed and in which plants grow.
Erosion: The process through which a material is gnawed away.

BACKGROUND INFORMATION

Most beach sand is made up of the mineral quartz. It may also contain pieces of broken shells. Sand starts out as large mountain rocks. Erosion by wind and water causes the rocks to be broken into smaller rocks. Over time these smaller rocks wash down rivers and streams until they reach the shore. While soil may contain some sand, it also contains other materials (clay for example) and organic matter which allow plants to grow.

 

 

 

 

 

 

 

 

 

Concepts/Objectives | Vocabulary/Background | Activity | Extension