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

Physical Science
Guy Vannote
Adventure In Destiny #1
6th Grade

Objectives

Students will
1. Demonstrate how heat and salinity affect the density of water.
2. Relate the compactness of water molecules to the density of water in different physical states

Standards Addressed

None 

2 plastic bottles of the same size, water, a freezer, copy of the density diagram on page 27 ("Project Wet"), copies of Adventures in Density Activity Sheet, food coloring, beakers, oven mitts, eyedroppers, ice cubes, hard boiled eggs, salt, spoon, heat source

Time Requirement

70 minutes

Procedure/ Outline

1. Assign students to small groups. Do the warm-up on page 27, "Project Wet".
2. Have the students read Adventures in Density Activity Sheets (page 28, "Project Wet")
3. Hand out the materials and have the students complete the activities on the activity sheet.
4. Wrap up: Have students summarize the results of their activities. Have them cite situations in their lives that have involved different densities of water (e.g., ice-skating, feeling cool water at the bottom of a lake, watching clouds.) 

Modifications /Adaptions/ Extensions

Have students construct miniature rafts that can float and write imaginative stories (that demonstrate an understanding of density) about their adventures on them

Assessment

Have students demonstrate the relationship of water temperature and salinity to density. Have students interpret a diagram representing the closeness of water molecules to the density of ice and to liquid water

Other Comments

None