FROGGER

PRINCIPLE	Newton’s third law of equal and opposite forces, Power, and Electricity and magnetism dealing with circuits.
AGE GROUP	3 years old and up.
DESCRIPTION	This frog is made of a hard transparent plastic that has the slightest tint of green in it. Having the frog be transparent allows for the user to see the inner-workings of the frog. When the frog’s knob is pushed down, a stamp effect occurs. Inside the belly of the frog is a popper, which is attached to the knob. The knob works like a stamp in that as the knob is pushed down the popper becomes inverted. As this process proceeds, the belly of the frog is pulled open so that the popper may sit directly on a hard firm surface. The LED bulbs, which are powered by a small battery located in the rear of the toy, light up at this instant as well. Once the stamp has clicked in place, the LED bulbs remain on and the belly remains open until the force of the popper against the hard surface, trying to revert back to its original shape, causes the frog to jump, the bulbs to go off, and the belly to close.
COST AND DURABILITY	Cost for this product ranges anywhere from 12-16 dollars mostly due to its intricate design. Due to the outer layer of the frog being made of transparent green plastic, the toy should be fit for continual usage and abuse. The popper is also made of a thick material, which allows for its durability. The battery can easily be replaced due to its location in the rear of the frog (because the battery will not be in constant use, it should last for at least a year).
SAFETY	With this toy, there are no small removable parts or toxic components that a child can consume. Battery leakage, however, should be taken into consideration.

Shalyn Davis

sldavis@andrew.cmu.edu