SCIENCE GRADE FIVE – SOUND AND LIGHT Pitch Energy Sound Vocabulary: All K-4 process vocabulary plus: Accurate Calculate Absorb Echo Energy Molecule Opaque material Reflect Sound wave Translucent material Transparent material Vibration Volume Waves Vibrations Intensity Sound and Light Medium Color Direction of light Light Essential Understandings: Sound is a form of energy Sounds are produced from vibrations Sound needs a medium to travel through Light is a form of energy The direction of light can be changed with a mirror Light can be bent using lens Objects absorb light, and we see color A sound wave of greater intensity sounds louder The more energy a sound has, the greater the volume The more vibrations (waves) per second, the higher the pitch Sound is created when waves cause molecules to vibrate through a medium (solid, liquid or gas) In a vacuum (no air), sound cannot be made because there is no medium to travel through The surface of different materials affects its ability to absorb, reflect and transmit sound The speed in which an electron moves affects the color we see