Science project
Magic Glass of Water
Is the glass half full or half empty? When speaking in terms of matter the glass is always full. A drinking glass without water is said to be “empty”. However, air within the glass is the matter that fills up the glass. Using these concepts we can invert a glass of water without spilling a drop.
Problem:
How does the phenomenon of the inverted glass of water serve as an example of the properties of pressure and surface tension?
Materials:
- Drinking glass
- Piece of cardboard (4” x 4”)
- Water
Procedure:
This should be performed over a sink or outside.
- Fill a ¼ of the drinking glass with water.
- Place the cardboard over the rim of the glass making sure the mouth of the glass is completely covered.
- Place your hand over the cardboard and invert the glass. Keep your hand underneath the cardboard for at least 5 seconds.
- Slowly remove your hand from underneath the cardboard.
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Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com's liability.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.
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