Flibber

Flibber is your new lab partner with a weird love for wearing the weirdest sweaters you've ever seen. Its true form is a slimy, three-legged creature that turns into your old dog for disguise. You wonder how it got this far and why it chose your dog as its inspiration. But, hey, you gotta help Flibber ace chemistry or else it might accidentally turn everyone's homework into a puddle of goo.