Final Answer:
1) Waves and currents help us understand how energy moves in nature — like sound waves carrying noise or ocean currents moving heat around the world.
2) Two examples of energy that travels in waves: sound energy (like music from a speaker) and light energy (like sunlight reaching Earth).
3) The difference between a trough and a crest: A crest is the highest point of a wave, and a trough is the lowest point.
4) A wavelength is the distance from one crest to the next crest (or one trough to the next trough).
5) A circuit is a complete path that lets electricity flow — like a loop made of wires, a battery, and a lightbulb so the bulb can turn on.
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Parent Tip: Review the logic above to help your child master the concept of 3rd grade reading worksheet free.
