2nd year physical science teacher
Fri, Nov 04, 2011 5:21 PM in Low Cost Chemistry Labs
For acids and bases you can use milk of magnesia Mg(OH)2, vinegar and universal indicator or red cabbage juice to show neutralization reactions and talk about balancing. You can also show hydrolysis by hooking up a 9V battery to a petri dish of salt water and indicator. With a little bit of wiring you can show the formation of H2 and O2 since it changes colors due to the indicator.
View Full Post
Fri, Nov 04, 2011 1:02 PM in Kitchen Chemistry
For acids and bases you can use universal indicator or red cabbage juice, milk of magnesia and vinegar. Since milk of magnesia if Mg(OH)2 and vinegar is a week acid with only has 1 proton to donate you can also show how balancing affects the amount of vinegar you need to add in order to neutralize the solution.
Another fun activity is splitting water in a petri dish using a 9V battery, indic...
Fri, Nov 04, 2011 11:56 AM in New Force & Motion Unit - Ideas?
I found an easy way to play with motion and speed by building rollercoaters out of foam pipe insulation and marbles. Home Depot sells 6' foam tubs for approx. $1.50. If you cut the tube long ways and tape them together you'll end up with a 12' track. Everything is pretty easy to setup and they love building the rollercoasters.
This lab is just a fun way of getting them to build things, calcu...
View all posts by Kate
Forum Posts 3
Public Collections 0
This month 0
This year 0
All Time 510