How can we make air pressure visible? By changing in in the presence of a puffy object like a marshmallow. In this activity students use simple vacuum and pressure pumps to see the dramatic effect they have on marshmallows (bits of foam rubber could be substituted). 

 

Use this to learn and reinforce answers to questions such as:

❑  How much space does air take?

❑  What happens to air when it's squeezed?

❑  What causes air to expand?

 

Once students try this activity, they can capture their observations using the included Lab Notes or probing questions included in the instructions. 

 

Concepts Addressed

♦  Matter takes up space

♦  Air's pressure pushes it into every conceivable space

♦  Since air is matter, it must take up space.

♦  Air is compressible

♦  Air (gas) cannot pull, it can only push

 

 

Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

 

Materials Needed   Vacuum pump (used for wine), pressure pump (used for carbonated drinks), plastic test tubes, mini marshmallows.

 

Prep Time   Collect and purchase materials as needed

 

Teaching Time   About 40 minutes.

 

Student Sheets   Scaffolded writing prompts 

Air Pressure: Air Is Compressible, an Activity with Marshmallows

$3.00Price

    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

    Connect with me: If you have questions or problems, please let me know and I’ll get back to you as soon as I can.

     

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