Chemistry, 03.11.2020 19:30 martdrea13
Design, Build, and Test a Prototype of the Cold Pack
In this task, you’ll design and build a prototype of the cold pack. The cold pack will allow the user to start a chemical reaction that absorbs energy. The reaction involves mixing powders from two compartments with water.
Estimated time to complete: 2 hours
You will need these materials:
safety goggles
1 toilet paper tube or a small rectangular box (depends on cold pack compartment shape from Task 2)
scrap cardboard of different thicknesses, such as cereal boxes, tagboard, and shipping boxes
scrap paper
scissors
glue
tape
thread or string
paper clips
plastic produce bag or similar
½-cup measuring cup
1-teaspoon measuring spoon
4 teaspoons baking soda
water
Part A
Identify the problem that the cold pack must address.
Part B
Criteria are the specific goals of the design. List at least two criteria for the design based on the question, What do you want it to do? Keep in mind the design of the cup and what you learned from observing the endothermic chemical reaction.
Part C
Constraints are the limits that we place on a design. Time, materials, or money may be in short supply. Some designs may also be limited by how the product gets used. List at least one constraint on the cold pack design.
Answers: 2
Chemistry, 22.06.2019 08:00
An observation that requires measurement is called quantitative observable or qualitative
Answers: 1
Chemistry, 22.06.2019 09:30
Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature
Answers: 3
Design, Build, and Test a Prototype of the Cold Pack
In this task, you’ll design and build a protot...
Medicine, 16.10.2020 06:01
World Languages, 16.10.2020 06:01
Geography, 16.10.2020 06:01
Biology, 16.10.2020 06:01
Chemistry, 16.10.2020 06:01
Mathematics, 16.10.2020 06:01
Chemistry, 16.10.2020 06:01
Mathematics, 16.10.2020 06:01
Mathematics, 16.10.2020 06:01
Mathematics, 16.10.2020 06:01