Sometimes even the experts are surprised by their ingenuity; from duct-tape ladders to a canoe in a can, Nate and Calli count down their top five favorite experiments that had crazy, unexpected results.

Sometimes even the experts are surprised by their ingenuity; from duct-tape ladders to a canoe in a can, Nate and Calli count down their top five favorite experiments that had crazy, unexpected results.

Nate and Calli are back with a blazing countdown; these two can't get enough of melting, singeing and setting things alight as they cover their five favorite explosive experiments.

Unexpected results can often lead to breathtakingly cool visuals; from microwaving highlighters to creating a giant green fire tornado, Nate and Calli count down the coolest-looking experiments.

Quantities are taken to a new level as Nate and Calli count down their top five favorite experiments that work with crazy amounts of Silly Putty, excessive silly string and more.