Nautica Men's N07545 Leather Square Analog Watch

Statement cuffs remain a major trend. Make a bold, bejeweled statement with this open weave cuff from House of Harlow 1960, accented by a silver horn.

Amaze your friends with a batch of "goo" that seems to defy gravity by flowing uphill

Grow colorful, iridescent Garbled Marbles from tiny balls and watch them shrink back when you take them out of the water

Grow fake ice cube from tiny squares of polymer, they seem to disappear when you put them in water - Why is that?

Make paper seem to bleed in a truly amazing pH experiment

Make a bubbling volcano in a test tube that turns into ...