Center of Gravity of the liquid going up the container due to evaporation of the head
Heat of Vaporization explanation (use in AP)
Read poems from "Where Fish go in Winter" by Amy Ross
Think good poems that help explain so commonly misunderstood concepts
Personally, I like Popcorn one, my first college lab was to determine mass of water in popcorn (could not burn popcorn)
Di keys for conifers (with cones)
2 possible answer where answer directs you to another question etc until get answer
Way to show classification (filtering process), I would use the word flow chart
Take sometime to come up with one for chemistry
Making bulb light with battery and copper wire
Good to help student understand must have complete circular pathway for electron flow
Many air pressure devices
like the sink plunger with pippette in it so that you can use handheld vacuum pump to get air out (also can hold bowling ball with plunger)
also include filling large balloon from blowing a few inches away from opening so that you can get Bernulli effect (rushing air in get more room air into bag).
Talk about boiling point decrease via vacuum pump
Egg into cold bottle (could replace with balloon) need cold bottle, wet egg dry towel
Can get out if you carefully add air into top by hold upside down and blow air in (egg slowly comes out)