CHANGES COLORS FROM YOUR BODY HEAT THE supreme slime lab for the budding scientist. Make some of the strangest, most anomalous slime you’ve ever encountered! Weird slime that changes color with the heat of your hands. Magnetic slime that slithers towards magnets. Even slime that glows eerily in the dark. Learn the science behind these amazing hydrophilic polymers while mixing up gobs and gobs of slime. Now that’s out of this world! Ages 8 ans up. Availability: Usually ships the next business day. 224SE FREE GROUND SHIPPING ON ALL ORDERS OVER $75.00. Please entry FREESHIPPING in the coupon box on the second page of the checkout. Offer valid for the 48 contiguous states. Certain oversize and drop ship items are excluded.