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Ch. 11-16
Grades 5/6 Physical World Science Vocab
| Term | Definition |
|---|---|
| electron | part of the atom with a negative electrical charge |
| proton | part of the atom with a positive electrical charge |
| neutron | part of the atom with a neutral electrical charge |
| Ion | electrically charged particles |
| valence electrons | outermost electrons in an atom |
| Law of Charges | opposite charges attract, similar charges repel |
| Static electricity | stationary electrical charge |
| electrical conductor | material that ALLOWS electrons to flow easily |
| electrical insulator | material that RESISTS the flow of electrons |
| semiconductor | material that allows SMALL amounts of electricity to flow |
| lightening | sudden discharge of electricity |
| thunder | sonic boom caused by rapidly expanding air |