"Be my Valen-slime!" Whip up a batch of this fluffy, soft goo as a fun and easy science activity to do with kids. Try adding red glitter, confetti hearts, or pretty-in-pink colors. Then, simply package in a jar and top it off with one of our printable punny labels.
Try one of two varieties: fluffy slime without Borax and traditional green slime. To make a fluorescent variation, replace the water being used to make your two solutions (one with the glue and one with the Borax) with Glow Water. When sealed in an airtight container, slime will last 1 to 2 days. To reactivate it once dried, run slime under warm water.
For more ideas, scroll through our entire collection of 28 Days of Valentines.