Teachers' Domain; Physical Science/Engineering; Density and Buoyancy: Pouring Air into Water
- Transcript
Did you know that you can pour air into water see the air is forcing the water out of this cup. Martin M. of Daly City California sent us this phenomena. This cup is filled with air. Turn it upside down and push it into a container filled with water like this fish tank. If you're doing that at home you can try it in your bath tub. Now take another cup and push it into the. Container but fill this one with water. Put the two cops close together and then pour the air into the cup fill with water. You see it's like you're pouring air instead of water. Here's what it looks like upside down. Now it really looks like air is pouring into water.
This works because the air inside of the cup is a giant bubble. The bubble stays inside of the cup when the cup is turned upside down. But when the cup is tipped the bubbles move through the water and up into the other cup. Air bubbles always move up in water. That's because they can flow. Check it out. But.
- Series
- Teachers' Domain
- Program
- Physical Science/Engineering
- Producing Organization
- WGBH Educational Foundation
- Contributing Organization
- WGBH (Boston, Massachusetts)
- AAPB ID
- cpb-aacip/15-dz02z12w5v
If you have more information about this item than what is given here, or if you have concerns about this record, we want to know! Contact us, indicating the AAPB ID (cpb-aacip/15-dz02z12w5v).
- Description
- Episode Description
- This video adapted from Zoom offers a clever demonstration of air bubbles under water.
- Description
- This video segment adapted from ZOOM offers a clever demonstration of buoyancy by showing how to pour a cup of air into a cup filled with water.
- Description
- See related asset "phy03_vid_zbubble_Backgrounder.xml"
- Description
- In this video segment, what property of air kept it trapped in the upside down cup? Was the air pushing the water away, or was something else happening? Explain. If you hold a cup upside down in the air, is it empty or full? Explain. If you hold an "empty" cup right-side-up in the air, what happens to the air inside the cup? Explain. Experiment with pouring other liquids in water. Could you pour oil or corn syrup in water the way the ZOOM cast member was pouring air?
- Description
- You've probably been asked to pour a glass of water for a friend or family member. Have you ever been asked to pour a glass of air? In this video segment adapted from ZOOM, one of the cast members demonstrates how to pour a nice big glass of air -- upside down!
- Topics
- Science
- Subjects
- physical property :: density; thermodynamics :: fluid :: buoyancy :: Archimedes Principle; science; Solids, Liquids, Gases; Properties of Matter; Sinking and Floating; Air Is Matter; matter :: state :: gas; matter :: state :: liquid; thermodynamics :: fluid :: pressure; physical property :: volume; physical property :: weight; structure and properties of matter :: physical :: density; structure and properties of matter :: states of matter :: gases; structure and properties of matter :: states of matter :: liquids; motions and forces :: fluids :: archimedes' principle; motions and forces :: fluids :: pressure
- Rights
- Rights Note:Streaming only,Rights:,Rights Credit:2001 WGBH Educational Foundation. All rights reserved. ZOOM and the ZOOM words and related indicia are trademarks of the WGBH Educational Foundation. Used with permission.,Rights Type:All,Rights Coverage:,Rights Holder:WGBH Educational Foundation
- Media type
- Moving Image
- Duration
- 00:01:48
- Credits
-
-
Producing Organization: WGBH Educational Foundation
Publisher: Teachers' Domain
- AAPB Contributor Holdings
-
WGBH
Identifier: 6d00a916b7e3cd12bda3ef4326e816e5c9e70d78 (ArtesiaDAM UOI_ID)
Format: video/quicktime
Color: Color
Duration: 00:01:08
If you have a copy of this asset and would like us to add it to our catalog, please contact us.
- Citations
- Chicago: “Teachers' Domain; Physical Science/Engineering; Density and Buoyancy: Pouring Air into Water,” WGBH, American Archive of Public Broadcasting (GBH and the Library of Congress), Boston, MA and Washington, DC, accessed June 8, 2025, http://americanarchive.org/catalog/cpb-aacip-15-dz02z12w5v.
- MLA: “Teachers' Domain; Physical Science/Engineering; Density and Buoyancy: Pouring Air into Water.” WGBH, American Archive of Public Broadcasting (GBH and the Library of Congress), Boston, MA and Washington, DC. Web. June 8, 2025. <http://americanarchive.org/catalog/cpb-aacip-15-dz02z12w5v>.
- APA: Teachers' Domain; Physical Science/Engineering; Density and Buoyancy: Pouring Air into Water. Boston, MA: WGBH, American Archive of Public Broadcasting (GBH and the Library of Congress), Boston, MA and Washington, DC. Retrieved from http://americanarchive.org/catalog/cpb-aacip-15-dz02z12w5v