McCannell Science
Terms
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- resistance
- when you add more bulbs to the circuit. more materials pushes against the flow of electrons
- Benjamin Franklin
- invented swim fins, odometer, lightning rod
- experimental design diagram
- a diagram which summarizes the plan for an experiment
- acid
- a compound that changes blue litmus paper to red and neutralizes bases
- title
- a statement describing an experiment
- Parts of an atom
- electrons, protons, neutrons
- compound
- substance made up of the combined atoms of two or more elements-NaCl
- electrons
- negative charge spinning around the nucleus.; associated with current and static electricity
- poles
- the ends of a magnet
- electric current
- continuous flow of electrons
- repeated trials
- the number of times you do the experiment
- magnetic field
- invisible region around a magnet
- conservation
- the law which says that no energy is lost in a reaction
- indicator
- a substance, that signals the presence of something-litmus
- mixture
- 2 or more elements that do not combine chemically-cup of sand and gravel
- insulator
- a material which does not conduct electricity - rubber, wood, and plastic
- open circuit
- an incomplete circuit -- no light -- break in the circuit
- independent variable
- the changes you make in the experiment, the cause
- molecule
- smallest indivisible part of a compound
- parallel circuit
- a circuit that has more than one path, if one bulb ges out then the others still work
- static electricity
- build up of an electric charge on an object due to a surplus or shortage of electrons
- matter
- anything that has mass -- solid liquid or gas
- neutrons
- no charge; found in the center of the atom
- constants
- all factors which remain the same for each repeated trial for all levels of the IV
- levels of IV
- the changes in the IV, how much
- closed circuit
- complete circuit -- the continuous flow of electrons
- thermal energy
- burning candle
- Michael Faraday
- worked for Sir Humphrey Davy, invented electric motor, discovered electricity could be made with magnetism
- fission
- the process of an atom splitting into pieces
- series circuit
- a circuit that ahas only one path, if one bulb goes out then the others go out too
- chemical energy
- lighting a match;connecting wires to a dry cell
- nucleus
- center of an atom where protons and neutrons are located
- attact
- when two magnets pull together
- dependent variable
- the thing that responds to the changes in the independent variable, the effect
- radiant energy
- light; energy from the sun
- fusion
- the process of 2 atoms merging into one
- conductor
- a material which allows electricity to pass through it - most metals
- Thomas Edison
- Invented phonograph, record, and motion picture projector. Patenting over 1,000 inventions. Improved the telephone
- proton
- positive charge found in the center of the atom
- formula
- symbol that represents the atoms in a compound or reaction
- element
- substance that contains only one kind of atom-Copper
- magnet
- 2 poles; opposite poles attract;has a magnetic field
- mechanical energy
- movement of objects; windmill
- solid
- has a shape and volume
- electrical energy
- movement of electric charges- lightning, electricity, circuit
- solution
- liquid mixture where 2 or more substances are uniformly spread--salt water
- combustion
- rapid oxidation, usually with the release of heat and light
- gas
- has neither a definite shape or volume
- circuit
- continuous pathway for electrons and electricity
- hypothesis
- Your prediction of what will happen in an experiment
- control
- the level of the IV chosen as the standard of comparison
- repel
- when two magnets push away from each other
- variable
- something that will be changed in the experiment
- mass
- weight of a matter
- liquid
- takes shape of it's container; has a definite volume
- energy
- ability to cause change
- Electron cloud
- area around the nucleus
- atom
- smallest particle of an element that has all the properties of that element
- V
- volts
- water
- common compound consisting of 2 atoms of hydrogen and 1 of oxygen