Materials & Procedure
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Tags: STEM Fair
Slide 1 - Materials & Procedure
- STEM Fair 2015
Slide 2 - Materials
- Materials are anything that you use in your experiment.
- Materials used in the experiment need to be listed in specific amounts and sizes.
- Keep in mind, you need to write your materials in specific amounts and sizes so that anyone can replicate your experiment.
Slide 3 - Materials- Amounts
- Examples of specific amounts could be:
- Numbers (Ex. 3 paperclips, 5 ice cubes, etc.)
- Cups (Ex. 6 cups of water, 3 cups of orange juice, etc.)
- Ounces (Ex. 7 oz. of water, 12 oz. club soda)
- Pounds (Ex. 5 lbs. of chocolate, 1 ½ lb. of clay, etc.)
- Amounts are the weight of or number of each material in your experiment.
Slide 4 - Materials- Sizes
- Examples of specific sizes could be:
Slide 5 - How would you improve this list of materials?
- One empty plastic soda or water bottle
- Baking soda
- Funnel or piece of paper
- When writing your materials out, ask yourself… Would people be able to replicate my experiment?
Slide 6 - By adding sizes and amounts!
- One small empty plastic soda or water bottle
- 1/2 cup of vinegar
- One small balloon
- 3 tablespoons of baking soda
- One large funnel
- Remember… Be as specific as you can!
Slide 7 - Writing a Procedure
- A procedure is a numbered list of the steps that you will follow to complete your experiment.
- It should be detailed.
- Remember, as with the materials, the procedure should be written so that any one can be able to try your experiment.
- Think of it as a step by step recipe!
Slide 8 - What makes this procedure a good procedure?
- Gather all materials.
- Measure 2 tablespoons of plain water, 2 tablespoons of saltwater, and 2 tablespoons of distilled water into each ice tray.
- Place the ice trays in the freezer and allow water to freeze for 8 hours.
- Line up three clear plastic cups on the table or counter. They should be in a place where you can observe them easily.
- Remove the ice from the freezer and place each ice cube into a plastic cup.
- Keep track of the ice in five minute increments.
- In your science notebook, note the changes in each ice cube as it melts.
- Write down the time it takes each ice cube to melt completely.
- Repeat Steps 1-8 two more times.
- Source: http://www.education.com/science-fair/article/ice-melting/
Slide 9 - It’s detailed!
- Anyone can follow it!
- It’s organized!
- What made that procedure a good procedure?
Slide 10 - Remember…
- Your list of materials and your procedure should be detailed enough and well organized so anyone can follow it!