Java Games: Flashcards, matching, concentration, and word search.

Grade 4 Chapter 12

AB
EchoWhen sound is reflected off a surface
TransparentWater and clear plastic wrap are this
RadiationHow energy travel from the sun to earth
Parallel CircuitElectricity can flow through more than one path in this
AmplitudeThe amount of energy in a sound wave
Current ElectricityDoes not transfer heat
RefractLight does this when it travels through materials like glass
Static ElectricityA balloon can stick to a wall because of this
Current electricityThe flow of electrical charges through a circuit
Prismit can separate white light into bands of coloured light
GasesSound travels most quickly through this
ConductionOccurs when energy is transferred between two objects that are touching
Concave LensCan cause light to bend outward from the center so light rays spread apart
Electric MotorsThese change electrical energy into mechanical energy
TurbineA set of angled blades attached to a shaft that provides mechanical energy for a generator
Fuse Box and Circuit BreakerBoth open a circuit if too much current is flowing
referee blowing a whistleHas a very high pitch


teacher
Centennial Public School
Utica, NE

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