Step-By-Step Experiments with Electricity
| Author | : | |
| Rating | : | 4.64 (580 Votes) |
| Asin | : | 160973338X |
| Format Type | : | paperback |
| Number of Pages | : | 32 Pages |
| Publish Date | : | 2014-02-06 |
| Language | : | English |
DESCRIPTION:
"Bad Science" according to LandauProblems. I am a EE and I was perplexed by the first experiment which hooks up a 9 volt battery (D/C) to an A/C lightbulb. I was questioning all my engineering knowledge and told my son it might not work. The picture shows a standard Compact Florescent light bulb. So we tried that as expected it did not work. Then I tried it with an incandescent light bulb as expected it did not work I then hooked it up to an A/C power source and it worked. I then got a multimeter and showed my son the batter. Don't buy this book. Amazon Customer The experiment as depicted on page 13 in Chapter 3 will never work. It shows a CFL light bulb connected to a 9-volt battery. CFL light bulbs work from 120-volt household AC. For the experiment to work, a low voltage bulb is required. Clearly the illustrator followed the instructions but didn't actually do the experiment. If a child attempted the experiment as depicted on page 13 they would be quite disappointed. How they got the bulb to light up on page 14 is a mystery. It's a fabri. M. Heiss said I like it! I wish the book had used the word "Hypothesis". The word is "hypothesis," not "guess."The activities are very doable, and translate well for homeschool or classroom science displays, especially if the report and results are videorecorded.Divide into groups. Each group gets an experiment and a couple of questions to answer. The activities really work, pose no danger to children, and get QUICK results. (15 minutes or less for MOST)Do you know what else we love, in our family? Snap Circuits. Snap Circuits Flying Saucer
Explains what electricity is and how it is conducted; describes the scientific method; and includes experiments testing different electricity concepts.