2006-06-13 18:35:51 · 9 answers · asked by brightbugger 1 in Science & Mathematics ➔ Chemistry
Get a glass of water and an egg. Show how, if you simply drop the egg in the water, it will sink. However, if you pour salt into the water, the egg will float. This is because the salt makes the liquid mixture more dense, which helps hold the egg up.
Use this analogy to explain why it is easier for a person to float in saltwater than in freshwater.
You will have to experiment first with the amount of salt--it will depend on the amount of water you have. I'm sure you could find a "recipe" online, though.
2006-06-13 18:42:02 · answer #1 · answered by benbobbins 3 · 3⤊ 0⤋
How'd you get to try this interior the 1st place? I want i'm going to have taken 8th and 9th grade classes in seventh grade! In extreme college all grades are at the same time, some little ones artwork forward, some fail and a few classes you could basically take each and every time. i'm in a variety with generally seniors next semester and that i'm a junior.
2016-12-08 09:02:04 · answer #2 · answered by Anonymous · 0⤊ 0⤋
COKE AND MENTOS
drop 1 or 2 mentos, the mint into a 2 litre bottle of Diet Coke and bam u got a science thingy....
2006-06-13 18:40:15 · answer #3 · answered by IAMCANADIAN 2 · 0⤊ 0⤋
vinegar + baking soda makes carbon dioxide. Mix in a bottle and quickly cover with a balloon, and the balloon inflates!
2006-06-13 18:39:45 · answer #4 · answered by Rob W 2 · 0⤊ 0⤋
Make a suitcase nuke, all the Russian kids are doin it;) LOL
2006-06-13 18:40:23 · answer #5 · answered by Anonymous · 0⤊ 0⤋
try to verify some laws or simple model like fire extingusher which are simple to make
2006-06-13 18:39:23 · answer #6 · answered by Rachit Sood 2 · 0⤊ 0⤋
make smoke bombs. check out www.unitednuclear.com
they have a cool one there. fun stuff.
2006-06-13 18:39:25 · answer #7 · answered by hellion210 6 · 0⤊ 0⤋
LOOK ONE THAT DONT BLOW A HOLE IN TH E WALLS lol
2006-06-13 18:37:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋
hydrogen bomb or ice bomb or small fireworks
2006-06-13 18:40:19 · answer #9 · answered by xistenz1 1 · 0⤊ 0⤋