Prof.N's Death Defying Science Blog

BLOBS IN A BOTTLE

E!

Safety rules:

1.always have a protective surface.

2.wear protective equipment eg:

goggles, gloves and an old unwanted t-shirt

3.never eat or drink substance unless told to do so

in the instructions

DANCING MOTHBALLS

a glass of coulorless soda,and some

mothballs should do the job.

1. place the mothballs inside the soda

and watch it float up and sink down

Explanation

the bubbles in the soda will attach itself to the mothballs and make it float. Then, at the surface , the bubbles will pop making it sink