Innovating Science® - APï®® Chemistry Lab #12: Designing a Hand Warmer

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Manufacturer ID - IS8112

Students will learn about acids and bases through a class discussion and then test a dilute acid and dilute base with neutral litmus paper to learn how the paper indicates something is acidic or basic. Once that skill is learned they can move on to test some common items that would be found around their house to determine if they are acids or bases. Optional: Extra litmus paper is included to test more items either from home or around the school building for a greater understanding of acids and bases. The activity contains enough materials for 6 groups of students.

Students study the various energy changes that occur with the formations of solutions for laboratory salts. From this data they will create the best and safest hand warmer. Students will determine the heat of solutions for each solid and analyze the cost and safety information with provided safety data sheet. The activity contains enough materials for 15 groups of students as well as a Teacher's Guide and Student Study Guide Copymasters. Meets Big Idea 5, Investigation 12, Primary Learning Objective 5.7.

Kit Includes:
100g Calcium Chloride
100g Sodium Carbonate
100g Lithium Chloride
100g Sodium Acetate
100g Ammonium Nitrate
100g Sodium Chloride
200g Magnesium Sulfate

Materials needed but not supplied:
Water, Deionized or Distilled
Balance, 0.01g Precision
Graduated Cylinder, 100mL
Magnetic Stir Plates/Stir Bars
Polystyrene Cups, 8oz
Lids for Polystyrene Cups
Thermometer or Temperature Probes

DOT Info:
UN1942, Ammonium nitrate, 5.1, III, Ltd Qty
Brand Name
Innovating Science®
Performance Expectations 5-PS1-3
Cross Cutting Concepts Cause and Effect
Scale, Proportion, and Quantity
Engineering Practices Planning and Carrying Out Investigations
Box Used 12663SBOX
Width (in) 6.25
Height (in) 4
Weight (oz) 19.9
Weight (lb) 1.24
Country of Origin US
Harmonization Code 9023.00.0000
DOT Description Non regulated

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