Two Tools at the Rainforest Orchid Lookout

A Science Break at the Lookout

A rainforest orchid lookout has an enclosed cabin where visitors can study without disturbing the flowers. During a dry afternoon, the lookout team compares a plastic comb and a bar magnet. They wonder what each tool can do near another object while a gap remains. An adult handles the magnets and keeps them away from mouths and electronics.

First, the team tests the comb near a tiny tissue square on a smooth tray. Rubbing plastic with a dry cloth can give it electric charge. The team compares three preparations: no rubbing, twelve strokes with cotton, and twelve strokes with fleece. One stroke means moving the cloth along the comb once.

Before each try, the adult cleans and dries the same comb using the same method. The team uses a fresh tissue square of the same size. They prepare the comb, then hold it still one centimeter from the tissue for four seconds. The tray, room, starting gap, and waiting time stay the same. They block drafts and make six tries with each preparation. They count a success when the tissue starts moving toward the comb before touching it.