How many balloons can we statically stick to Sasha's head?
Today we worked as a team to see how many balloons we could stick to 9 year old Sasha's hair. We managed 12 but could have probably fit more on if we had blown up more balloons.
To start we took some water balloons and blew them <span 1.3;"="">up. We then frantically rubbed the balloon against our heads to build up electrons on the surface of the balloon. This is static electricity, we call it static because the electricity is not moving and electricity is made from electrons which are part of an atom.
Electrons have a negative charge and protons which are another part of an atom have a positive charge. We all know that opposites attract so when we took our electron filled balloon and placed it close to Sasha's head, the electrons became attracted to the protons in her hair with enough force that they stuck, we even got one to stick to her eyebrow!