Save $20
on any order of $599+
Save $30
on any order of $999+
Save $50
on any order of $1499+
View All Coupon Codes
This item qualifies for Free Ground...
An economical version of a classic device! It demonstrates that all objects experience the same gravitational acceleration and fall at the same speed in a vacuum, but in air the air resistance slows down some objects more than others. Features a disc and a feather in a tough, clear, plastic tube, 90 CM long and 4.5 CM diameter, with rubber end caps and hose cock for connection to any standard vacuum pump (not included). Includes activity guide.
We aim to show you accurate product information. Here you will find what the manufacturers have provided us with. See our disclaimer.
* Free Ground Shipping within the continental U.S. only (excludes Alaska, Hawaii, PO Boxes and APO/FPO addresses).
***
WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
Note: Please read description carefully. Do not base your order on the picture presented.