Mysterious Water Suspension

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Steve Spangler is a bestselling author, STEM educator and Emmy award-winning television personality with more than 2,100 television appearances to his credit. Steve appeared as a regular guest on the Ellen DeGeneres Show from 2007-2022. Learn more about Steve at stevespangler.com/about-steve...
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LESSON PLAN SUGGESTIONS
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In this engaging 2-minute video, Steve demonstrates a fascinating experiment where water is suspended in an upside-down glass jar using just a coaster (or a playing card). The secret behind this "magic" is air pressure. Steve explains that the air pressure pushing up against the coaster is greater than the weight of the water, keeping it suspended in the jar.
Lesson Plan: Mysterious Water Suspension
**Grade Level**: Elementary (Grades 3-5)
**Duration**: 45 minutes
**Subject**: Science
**Topic**: Air Pressure and Fluid Dynamics
OBJECTIVES
- Students will understand the concept of air pressure.
- Students will conduct an experiment to observe the effects of air pressure.
- Students will develop skills in making observations and drawing conclusions.
MATERIALS NEEDED
- Glass jars (one per student or group)
- Playing cards or coasters
- Water
- Bowls
- Measuring tape or ruler
- Calculator (optional)
INTRODUCTION (10 minutes)
1. Begin by asking students what they know about air pressure.
2. Show the "Mysterious Water Suspension" video to the class.
3. Discuss the video and ask students to predict how the experiment works.
ACTIVITY (20 minutes)
1. Divide students into small groups and provide each group with the materials.
2. Instruct each group to fill their jar with water.
3. Place the playing card or coaster on top of the jar.
4. Carefully turn the jar upside down over a bowl and let go of the card.
5. Observe what happens and record observations.
DISCUSSION (10 minutes)
1. Ask students to share their observations.
2. Discuss the role of air pressure in the experiment.
3. Calculate the air pressure using the formula provided in the video (optional).
CONCLUSION (5 minutes)
1. Summarize the key points of the lesson.
2. Encourage students to think of other scenarios where air pressure plays a role.
ASSESSMENT
- Participation in discussion and activity
- Observation and conclusion worksheet
EXTENSIONS
- Explore other experiments that demonstrate the principles of air pressure.
- Calculate the air pressure required to keep different volumes of water suspended.
The SICK Science® series was created by Steve Spangler.
© 2010 Steve Spangler, Inc. All Rights Reserved.
SICK Science is a registered trademark of Steve Spangler, Inc. Reg. No. 4,398,849

[@anonymeister123]

When will we get longer videos? Or are these just clips from past videos?

[@croatiansensation6062]

I am sorry but how does the random 14.7-lb metal bar come into the picture and the calculation?

[@sickscience]

The one-inch-square steel bar, weighing 14.7 lbs. and measuring 52 inches long is a simple way for students to better understand the weight of 1 atmosphere at sea level. It's a popular tool used by middle and high school teachers.

[@daviegriffin3539]

🤔 *I had this in a Magic Trick package as a child.* 🤓
_A loooooong time ago._ 🤫🤭