Concentrate This! Sugar or Salt...

Section 1- Boiling Point Data

Each group needs:

• beaker tongs or hot gloves
• calculator
• 300 ml beaker
• thermometer
• burner or hotplate
• 200 ml water
• Section 1 Worksheet (PDF)
• graduated cylinder
• glass stir rod
• aluminum foil (4" x 4" piece) used to form a lid over beaker during boiling

To share with the entire class:

• electronic balance (capable of weighing 200 ml water plus beaker weight)
• salt, approximately 250 g for every other group (each group only tests one solute)
• sugar, approximately 540 g for every other group (each group only tests one solute)

Section 2 - Data Analysis

Each group needs:

• Section 2 Worksheet (PDF)
• calculator
• ruler

Section 3 - Design

Each group needs:

• beaker tongs or hot gloves
• calculator
• 300 ml beaker
• thermometer
• burner or hotplate
• 200 ml water
• Section 3 Worksheet (PDF)
• graduated cylinder
• glass stir rod
• aluminum foil (4" x 4" piece) used to form a lid over beaker during boiling

To share with the entire class:

• electronic balance (capable of weighing 200 ml water plus beaker weight)
• salt, approximately 100 g per group
• sugar, approximately 180 g per group