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The Challenge
Design and build a thermos/cup that can keep 250 ml of water the warmest for 30 minutes.
Design Constraints
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Fit in your teacher’s hand
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Must hold 250 mL of hot water
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Be structurally sound (doesn’t easily fall apart)
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No part of your container may be permanently altered as a result of the final test (your results must be repeatable without changing your container.)
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The container that shows the lowest change (i.e. keeps water the warmest) wins!
You may:
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Use a plastic/glass/ceramic cup as the core
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Use any raw materials at home or from the store as long as they obey the “May NOT” section.
You may NOT:
- Use a thermos/travel mug as the core
- Use materials only accessible to research laboratory personnel
- Use a top/cap/lid that completely seals the thermos.
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