Atoms
Circuits
Respiratory System
100

Element 

the type of matter that is made from one type of atom

100

Conductors

something that allows electric charges to pass

100

Organ system

more than one organ working together to do a job

200

Proton

Particles that are positively charged

200

Insulators 

A material that does  not let electric charges pass

200

Organism

A living thing 

300

Electron 

Particles that are found in an atom, around the nucleus and are negatively charged.

300

Resistor

A device that is used to let the flow of electricity in a electric circuit.

300

Nerves

A lot of nerve cells that carry information to the brain

400

Nucleus

Something that is in the center of a atom and is made up of neutrons and protons. 

400

Switch 

closes and opens the flow of energy in a circuit

400

Nerve cells

Sense stimuli
500

Neutrons 

something in the nucleus that has no charge.

500

Wire

something that carries a circuit

500

Spinal cord

a bunch of nerves that carry information to and from the brain to all parts of your body