Marshmallow madness
With help from a marshmallow and syringe (without the needle!), you can create pressure that's stronger than the atmosphere, right in the palm of your hand.
This experiment teaches principles of pressure, properties of foam, and ocean science. Uh, what do marshmallows have to do with the ocean? With this demonstration, you'll be able to basically see the effect of deep-sea pressure on just one marshmallow from the book Try This! Extreme by Karen Romano Young.
Draw a face or letter on the marshmallow. (This will help you see how it changes under pressure.)
Pull the plunger of the syringe all the way out, and insert a marshmallow. Replace the plunger.
Suck out the air by pulling the plunger. Observe the results.
Push the plunger back in. Observe the results.
WHAT'S GOING ON
The marshmallow may look solid, but it’s actually full of air pockets—a foam. When you pump air in, you increase the pressure on the marshmallows and the air inside them is compressed. When air rushes back in, the marshmallows may get larger—and if you suck it out they may get smaller.
Science Lab
(ad) try this extreme: 50 fun & safe experiments for the mad scientist in you, (ad) make this: building thinking, and tinkering projects for the amazing maker in you, (ad) try this: 50 fun experiments for the mad scientist in you.
- Terms of Use
- Privacy Policy
- Your California Privacy Rights
- Children's Online Privacy Policy
- Interest-Based Ads
- About Nielsen Measurement
- Do Not Sell My Info
- National Geographic
- National Geographic Education
- Shop Nat Geo
- Customer Service
- Manage Your Subscription
Copyright © 1996-2015 National Geographic Society Copyright © 2015-2024 National Geographic Partners, LLC. All rights reserved
- High School
- You don't have any recent items yet.
- You don't have any courses yet.
- You don't have any books yet.
- You don't have any Studylists yet.
- Information
Boyles Law Marshmallow Experiment
Cumberland polytechnic - fayetteville-nc.
Recommended for you
Students also viewed.
- 2022-23 HL Saturated Solution Pogil
- U11 Lab 4 Gizmo Colligative properites lab HChem 2122
- (KEY) Nomeclature worksheet practice 2-6
- Dimensional Analysis Worksheet - 7154118
- Chem Review - practice materials
- Gas Laws Unit Review
Related documents
- Aryan Jain - 83 Unit 2 Anno - 18322073.3 Unit 2 Annotate the Knowledge Guide epperson
- Bonding Review Activity
- Kami Export - Reading Measurements from Instruments
- HW Heat of Fusion and Vaporization
- Periodic+Trends+Web+Activity
- Unit Conversion Lab - This lab is used to practice making precise measurements in English units and
Preview text
The expanding marshmallow, introduction, help students explore and understand boyle’s law with this simple demonstration. see how a, change in pressure affects the volume of marshmallow. students will easily remember the, relationship between pressure and volume after participating in this activity., by simply placing a marshmallow inside a syringe and using the plunger to increase and decrease the pressure, your stu-, dents can watch the marshmallow expand and shrink to get a clear understanding of boyle’s law., • pressure • volume, • boyle’s law • gas laws, syringe, without needle, plastic, 35-ml felt-tip pen (optional), miniature marshmallow, fresh syringe tip cap (optional), safety precautions, this laboratory activity is considered nonhazardous. follow all normal laboratory procedures., 1. if desired, use a felt-tip pen to draw a happy face on the end of a miniature marshmallow., 2. remove the end cap from the tip of a 35-ml plastic syringe., 3. remove plunger from the syringe and insert the marshmallow into the syringe., 4. place plunger back in syringe so the volume reading is approximately at the 15-ml mark., 5. place a syringe tip cap over the tip of the syringe. pull the plunger out—decreasing the pressure inside the syringe., the marshmallow should expand—it’s volume increases., 6. now push the syringe in—increasing the pressure inside the syringe. the marshmallow should shrink—its volume, please consult your current flinn scientific catalog/reference manual for general guidelines and specific procedures govern-, ing the disposal of laboratory waste. the marshmallow should be removed from syringe and put into the trash according, to flinn suggested disposal method #26a. clean work area and wash hands thoroughly with soap and water before leaving, the laboratory., • a finger may be used to “seal” the syringe instead of a syringe tip cap, if needed., © 2016 flinn scientific, inc. all rights reserved. publication no. 10073 1, s c i e n t i f i c.
- Multiple Choice
Subject : Chemistry
- More from: Chemistry Honors 999+ Documents Go to course
Chemistry Demonstrations
- Demos with Lesson Plans
- Demos with Problem Sets
- Demos with Videos
- SOLs Covered (K-6)
- SOLs Covered (7-12)
- Topics Covered
- Uses Household Items
- Upcoming Events
- Past Events
- Professional Development
- Science News
- Teaching Materials
- Texts for Students
- Acknowledgements
Marshmallow Magic
DESCRIPTION: When a marshmallow is placed in a large capped syringe and the plunger is pushed in, the air in the marshmallow contracts from the pressure. Conversely, if the plunger is pulled back, the pressure decreases causing the air in the marshmallow to expand.
TOPICS COVERED: – Boyle’s law – pressure – physical change
MATERIALS NEEDED: – syringe with cap – marshmallow
PROCEDURE: 1. Place marshmallow in syringe, replacing plunger 2. Cap the syringe 3. Hold the cap on, and push the plunger in slowly 4. Release the cap, and push plunger to the marshmallow 5. Replace cap and pull back on plunger
ADDITIONAL COMMENTS: You may need to experiment with various size marshmallows and plungers to get a combination that is easy to see what is happening.
SAFETY: Safety goggles should be worn at all times.
REFERENCES: Lysher, Rita. Personal Interview by Kevin Caran. 15 Jul 2011.
Boyle's Law Physical Change Pressure Uses Household Items
3.3c CH.5a CH.5b PS.5a
The Expanding Marshmallow
Publication 13237
Price: FREE
Learn more about downloading digital content
Help students explore and understand Boyle’s Law with this simple demonstration. See how a change in pressure affects the volume of marshmallow. Students will easily remember the relationship between pressure and volume after participating in this activity. By simply placing a marshmallow inside a syringe and using the plunger to increase and decrease the pressure, your students can watch the marshmallow expand and shrink to get a clear understanding of Boyle’s Law.
IMAGES
VIDEO
COMMENTS
Learn how to create pressure with a marshmallow and a syringe, and see how it affects the shape and size of the marshmallow. This experiment also explores the properties of foam and the deep-sea pressure.
1. If desired, use a felt-tip pen to draw a happy face on the end of a miniature marshmallow. 2. Remove the end cap from the tip of a 35-mL plastic syringe. 3. Remove plunger from the syringe and insert the marshmallow into the syringe. 4. Place plunger back in syringe so the volume reading is approximately at the 15-mL mark. 5.
Learn how to demonstrate Boyle's Law using a marshmallow and a syringe. Find out what happens to the marshmallow when the pressure changes and how this relates to the law.
1. If desired, use a felt-tip pen to draw a happy face on the end of a miniature marshmallow. 2. Remove the end cap from the tip of a 35-mL plastic syringe. 3. Remove plunger from the syringe and insert the marshmallow into the syringe. 4. Place plunger back in syringe so the volume reading is approximately at the 15-mL mark. 5.
conclusion of this experiment. Figure 1. A 140-mL syringe. Experimental Procedure Take the syringe apart. Place one mini-marshmallow in the syringe replace the plunger, pushing it down until it just reaches the marshmallow. Place the end cap on the syringe. Pull the plunger and observe the marshmallow. If desired, you can repeat this several times.
Learn how to use a syringe and a marshmallow to demonstrate Boyle's law and pressure changes. Follow the simple procedure and see the results of this fun and easy experiment.
Materials needed: syringe, marshmallows (mini for small syringe) Description and Teaching Materials. Students place a few marshmallows in the syringe, then push the plunger until it touches the marshmallows. Covering the tip of the syringe with their finger, students pull the plunger up and watch as the marshmallows expand. Students then return ...
Marshmallow expands and contracts inside a sealed syringe. It must know Boyle's law!This video is part of the Flinn Scientific Best Practices for Teaching Ch...
1. If desired, use a felt-tip pen to draw a happy face on the end of a miniature marshmallow. 2. Remove the end cap from the tip of a 30-mL plastic syringe. 3. Remove plunger from the syringe and insert the marshmallow into the syringe. 4. Place plunger back in syringe so the volume reading is approximately at the 15-mL mark. 5.
The Expanding Marshmallow | Flinn Scientific. Your Safer Source for Science. All-In-One Science Solution. Your Safer Source for Science. 1-800-452-1261 ... By simply placing a marshmallow inside a syringe and using the plunger to increase and decrease the pressure, your students can watch the marshmallow expand and shrink to get a clear ...