| A | B |
|---|
The smallest building blocks of matter,  | atoms |
A circuit that starts and finishes in the same place,  | closed circuit |
electicity that jumps from place to another,  | static electricity |
The outer part of atom that can be stolen making electricity,  | electrons |
rubbing a needle and then placing it on a cork floating in water creates,  | compass |
when electricity builds and jumps across air which is not a coductor,  | electtrical discharge |
When a electrical charge is added to metal creating,  | electonmagnet |
two ends of don't attract each other they are,  | the same charges, positive or negative |
A substance that doesn't let electrons pass through a substance or be shared like the black rubber on the wires is an,  | insulator |
a substance that allows electrons to move and be shared like the metal on the doorknob is a,  | conductor |
| The part of an atom that is black and is negatively charged, | electron |
| The part of the atom that is red and postively charged, | proton |
electricity that moves in one direction like the top pictureis a,  | series circuit |
| electricity that moves in more than one direction like the bottom picture is a, | parallel circuit |
to increase the strenght of an electromagnet you needs to,  | increase the number of loops around the metal object |
| anything that has a conductor, switch, energy source, and electrical device is a, | circuit |
Why does the hair on your head stand up when you rub it with a balloon,  | hairs all have the same charge and are repelling each other |
Which one of the images would have the more protons than electrons,  | positive charge |
| Atom with equal amounts of electrons and protons, | neutral charge |
The string and key Ben Franklin is using are,  | conductors |
This represents what each loop is like in an,  | electromagnet |
frequency (hertz) or pitch,  | the number of vibrations in a particle in one second |
parts of the ear are divided into the,  | outer, middle, and inner ear |
sound waves always move in a,  | straight line |
sound moves in all directions like,  | waves in water |
the more something vibrates the higher the,  | pitch |
medium,  | sound can only travel if it can go through a medium like gas, solid, or liquid |
the graater the frequency the greater the number of ________ in one second,  | vibrations (hertz) |
the greater the energy or movement of the particles the __________ the sound,  | louder (amplitude) |
