Category/Subjects:
Instructor:
Title Of Activity:
Grade Level:

Physical Science
Robert Sime
Adventure In Density(Part 1)
9th

Objectives

Demonstrate how heat and salinity affect density. Relate the compactness of water molecules to the density of water in different states

Standards Addressed

No high school standards 

Two pop bottles, density diagram overhead, student activity sheets. Hot plates and water, beaker tongs, ice water, medicine droppers, food coloring (2), ice cubes with food dye, hard boiler egg, beakers, salt

Time Requirement

50 minutes

Procedure/ Outline

Introduce the discussion of feather-lead riddle. Divide into groups of two. Distribute handouts. State cautions. Have students complete activities

Modifications /Adaptions/ Extensions

Part II - do as group activity the next day

Assessment

Verbal discussion of Part II. Written student log entries

Other Comments

Could be used in environmental education to broaden physical factors in the environment