1. Science Notebook Heat, Light, and Sound Energy

2. Table of Contents 1.Word Bank – Heat, Light, Soundpg # 2.What I Know (Notes page)pg. # 3.Solar S’mores Labpg. #

3. Word Bank Energy – (NRG) something capable of causing a change Thermal nrg – moving particles in matter Thermal = heat Heat – (verb) transfer of nrg from one piece of matter to another Conduction – how thermal nrg moves. Example – stove -> pan -> water -> hot dog Solar nrg – heat from the Sun

4. Prism – a solid object that bends light Visible spectrum – made up aof all the colors of light that people can see. (ROYGBIV) Reflection – bouncing light Absorb – take in light Refraction – bending light

5. Sound – vibrations that you can hear Sound waves – how sound moves through the air; quickly moving areas of high and low pressure Amplitude- the height of a wave from calm to its highest point, or from calm to its lowest point Wavelength – the distance from one part of a wave to the same spot on another wave

6. Loudness – how much sound energy reaches your ears Pitch – how high or low a sound is. Speed of sound – how fast a sound wave travels

7. What I Know All matter has particles. Adding heat makes particles move faster. We feel the “moving” particles in thermal energy as heat. Temperature is the average speed of particles. (how fast they are moving) Fast movement of particles = HIGH temperature Thermal nrg moves from HOT  COLD.

8. Conduction looks like this: ON Step 1: ON heats STOVE Step 2: STOVE heats POT Step 3: POT heats WATER

9. Solar nrg can be used to heat our homes, our water, cook food, and provide electricity Light nrg moves 186,000 miles an hour. RRED OORANGE YYELLOW GGREEN BBLUE IINDIGO VVIOLET This is the Visible Spectrum!!

10. White light is made up of many different colors of light. When a beam of white light moves through a prism, it is refracted twice - Once when it passes from air into glass, and again when it passes from glass back into air. The colors of light are refracted at different amounts each time, so we see the rainbow bands of color. The color we see is the color being reflected! Example – Green grass is reflecting ONLY green; all other colors are absorbed.

11. Black = all colors absorbed White = all colors reflected New colors can be made by combining 2 or more colors together. Sound is made by vibrating objects. Sound travels as sound waves. We sense vibrations as sound.

12. The amplitude of a sound wave shows how loud the sound is. Loudness depends on the size of the vibrations. The more energy the object has, the louder the sound. Pitch depends on how fast the source of the sound vibrates.

13. Fast vibrations = high pitch Pitch is related to wavelength -Long wavelength = low sound (pitch) -Short wavelength = short sound (pitch)