I recently presented at the CSTA Conference and I was able to pick up a few new demonstrations. In the past it was really difficult to demonstrate or do a lab activity that involved the electrolysis of water. Luckily I sat in on Tara Krisch's (Orange Grove Middle School) presentation on compounds. She shared a simple way for students to do water electrolysis. The second demo also shows electrolysis, but in a slightly more colorful way.
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Response: Check out our URLScienceFix - Science Fix - Video Demo: Water Electrolysis