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Description
Simple MachinesJumpstart your study of mechanical physics by learning all about simple machines and how they're used to make complex tasks easier to do. Through 26 model building exercises, you'll investigate all six classic simple machines ' wheels and axles, levers, pulleys, inclined planes, screws, and wedges ' as well as gears. Start off with simple models to guarantee a firm understanding of the basic principles at play, and then move onto larger, more complex
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 1894 reviews
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Product Reviews
★★★★★ 5
Quick Fix for Tired Eyes
Size: 1 Count (Pack of 6)
These feel great and really help reduce puffiness and dark circles under my eyes. Super refreshing and easy to use, especially in the morning or in the evening before going out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 4
eye rific
Size: 1 Count (Pack of 6)
Great product eliminates the bags under my eyes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 5
Bags be gone !!!
Size: 1 Count (Pack of 6)
Seems to be working and I can see the results
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 1
Difficult to stay on
Size: 1 Count (Pack of 6)
Won't stay on your face. Only a few patches come in the box for a few days. Price sounds good until you realize the quantity isn't much. I did not notice any difference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Great product you should try
Size: 1 Count (Pack of 6)
I love these patches, have been my favorite go to since they came out. I think they do better than any other patch, spray, or gel I have used so far.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
