LECTRICITY A comprehensive course that teaches the big ideas behind Faaraday and Maxwell’’s ground‐ breaking work. Students will discover how to design and test circuits, detect electric charge, learn about electrochemistry as they construct batteries, play with the static electric field, and uncover the mysterious forces that redefined the entire field of chemistry and physics when they were first discovered. Created by Aurora Lipper, Supercharged Science www.SuperchargedScience.com This curriculum is aligned with the National Standards and STEM for Science. © 2014 Supercharged Science P.O. Box 4418, San Luis Obispo, CA 93403 (805) 617‐1789 TABLE OF CONTENTS Introduction ............................................................................................................................................................................................................... 4 Educational Goals for Electricity ....................................................................................................................................................................... 5 Master Materials List for All Labs ..................................................................................................................................................................... 6 Lab Safety ................................................................................................................................................................................................................... 8 Section 1: Static Electricity .................................................................................................................................................................................. 9 Lesson #1: Static Hair .......................................................................................................................................................................................... 10 Lesson #2: Electric Fields .................................................................................................................................................................................. 13 Lesson #3: Triboelectric Series ....................................................................................................................................................................... 17 Lesson #4: Visible Electric Fields ................................................................................................................................................................... 21 Lesson #5: Electroscope ..................................................................................................................................................................................... 24 Lesson #6: Electrostatic Motor ........................................................................................................................................................................ 26 Lesson #7: Advanced Static Lab ...................................................................................................................................................................... 28 Lesson #8: Alien Detector .................................................................................................................................................................................. 33 Lesson #9: Cosmic Ray Detector ..................................................................................................................................................................... 36 Static Electricity Evaluation .............................................................................................................................................................................. 39 Static Electricity Quiz ........................................................................................................................................................................................... 40 Static Electricity Lab Practical ......................................................................................................................................................................... 43 Section 2: Electricity ............................................................................................................................................................................................ 44 Lesson #10: Basic Circuits ................................................................................................................................................................................. 46 Lesson #11: Conductivity Testers .................................................................................................................................................................. 49 Lesson #12: Switches & Motors ...................................................................................................................................................................... 52 Lesson #13: Digital Multimeters ..................................................................................................................................................................... 57 Lesson #14: Motor Speed Controllers .......................................................................................................................................................... 61 Lesson #15: Electric Eye Sensor ..................................................................................................................................................................... 64 Lesson #16: Trip Wire Burglar Alarm .......................................................................................................................................................... 67 Lesson #17: Pressure Sensor ........................................................................................................................................................................... 69 Lesson #18: Latching Circuits .......................................................................................................................................................................... 71 Lesson #19: Nerve Tester .................................................................................................................................................................................. 73 © 2014 Supercharged Science 2 www.SuperchargedScience.com Electricity Evaluation .......................................................................................................................................................................................... 75 Electricity Quiz ....................................................................................................................................................................................................... 76 Electricity Lab Practical ...................................................................................................................................................................................... 78 Section 3: Electrochemistry .............................................................................................................................................................................. 79 Lesson #20: Electrolytes .................................................................................................................................................................................... 80 Lesson #21: Electrolysis ..................................................................................................................................................................................... 84 Lesson #22: Electroplating ............................................................................................................................................................................... 87 Lesson #23: Fruit Battery .................................................................................................................................................................................. 90 Lesson #24: Salty Battery .................................................................................................................................................................................. 93 Lesson #25: Silver Battery ................................................................................................................................................................................ 96 Lesson #26: Air Battery ...................................................................................................................................................................................... 98 Electrochemistry Evaluation ......................................................................................................................................................................... 100 Electrochemistry Quiz ...................................................................................................................................................................................... 101 Electrochemistry Lab Practical ..................................................................................................................................................................... 102 Answers to Exercises and Quizzes .............................................................................................................................................................