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Properties of Gases There are 39 products.

Properties of Gases
  • Magdeburg Hemispheres
    Magdeburg Hemispheres.

    Our plastic half-spheres withstand 180 pounds of force when pumped free of air. Pass them around the classroom, inviting students to try to pull them apart using safety handles, or place in the Vacuum jar and remove the air to equalize the pressure and watch the halves separate. Includes two ABS plastic hemispheres, 4.75" in diameter; brass exhaust valve, 1/4" diameter pressure tubing; wooden handles; illustrated instructions.  Image may vary.

    Our plastic half-spheres withstand 180 pounds of force when pumped free of air. Pass...

    Our plastic half-spheres withstand 180 pounds of force when pumped free of air. Pass them around the classroom, inviting students to try to pull them apart using safety handles,...

    611-2325

    In Stock

    .
    $27.50
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  • Force Cups  Set of 2
    Atmospheric Pressure (Force) Cups.

    These student-friendly rubber cups can be placed together and squeezed to force out the air inside. They then prove surprisingly hard to pull apart. Includes two rubber cups, 7.5 cm in diameter and attached plastic handle.

    These student-friendly rubber cups can be placed together and squeezed to force out the...

    These student-friendly rubber cups can be placed together and squeezed to force out the air inside. They then prove surprisingly hard to pull apart. Includes two rubber cups,...

    611-2330

    In Stock

    .
    $24.95
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  • Collapsing Metal Can
    Collapsing Metal Can Demo

    This collapsing metal can makes a good introduction to air pressure for any age student. The can, when evacuated by a hand pump, will crumple right before your eyes. You can also boil a small amount of water inside to drive out all the air, then cap it and let it cool. Includes one sturdy metal can, rubber stopper with hose nipple to evacuate can, and screw cap. 23 x 17 x 10 cm in size. This item is single use only.

    This collapsing metal can makes a good introduction to air pressure for any age...

    This collapsing metal can makes a good introduction to air pressure for any age student. The can, when evacuated by a hand pump, will crumple right before your eyes. You can...

    611-2335

    In Stock

    .
    $15.65
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  • Bell In Vacuum w/Plate & Bell
    Bell in Vacuum with Plate and Bell.

    Nature, of course, abhors a vacuum - and sound waves won't travel through one. Prove it with a ringing bell inside a sealed glass jar. As air is gradually pumped out of the jar, the bell becomes faint, then dies. Includes jar, vacuum plate with valve, rubber seal, bell system, and instructions. You need a vacuum pump and 2 AA batteries, not included. Bell may be removed for other vacuum experiments. The inside height is 8", the diameter is 8".

    Nature, of course, abhors a vacuum - and sound waves won't travel through one. Prove it...

    Nature, of course, abhors a vacuum - and sound waves won't travel through one. Prove it with a ringing bell inside a sealed glass jar. As air is gradually pumped out of the jar,...

    611-2340

    This item is currently not in stock, please call for availability.

    .
    $89.95
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  • Weight of Air Apparatus
    Weight of Air Apparatus.

    Prove that air has weight by weighing our can before and after evacuating it. The difference is up to 1/2 gram. Includes 1000 mL seamless aluminum can with attached plastic valve and hose. Instructions included. Requires vacuum pump.

    Prove that air has weight by weighing our can before and after evacuating it. The...

    Prove that air has weight by weighing our can before and after evacuating it. The difference is up to 1/2 gram. Includes 1000 mL seamless aluminum can with attached plastic...

    611-2345

    In Stock

    .
    $35.50
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  • Guinea & Feather
    Guinea and Feather Tube.

    This counter-intuitive experiment has to be seen to be believed. Galileo used the traditional guinea (coin) and feather to show how items fall at the same rate in a vacuum despite their relative weights and sizes. Includes 81 cm plastic tube for safety; 2 rubber caps, one with hose cock and hose for evacuating the tube; weight set; instructions. You need a vacuum pump, not included (electric pump preferred).

    This counter-intuitive experiment has to be seen to be believed. Galileo used the...

    This counter-intuitive experiment has to be seen to be believed. Galileo used the traditional guinea (coin) and feather to show how items fall at the same rate in a vacuum...

    611-2350

    In Stock

    .
    $35.50
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