I want to engage my students so I have been searching the web and keep finding the same old, blasé experiments all of us have already done a thousand times. I am just looking for some input. I have some ideas in mind but different viewpoints don't hurt. Thanks in advance.
2006-12-05 17:49:13 · 7 answers · asked by jouno4 1 in Science & Mathematics ➔ Other - Science
You can show the reaction between baking soda and vinegar in a way to attract the kid's attention and enhance interest in the following way..
Take vinegar in a transparent jar...
Add some soda to it and then throw down Naphthalene balls in them..
the balls keep bobbing up and down and it will be fun..
the concept behind this is..
Naphtalene balls are porous and reaction between vinegar and soda creates carbon di oxide and these CO2 bubbles are collected on these balls which makes it rise to the top then the gas escapes and the ball falls down.. it repeats..
If it does not work add more of teh baking soda..Surely it will work.
2006-12-06 01:02:41 · answer #1 · answered by Hellbound Angel 2 · 0⤊ 0⤋
If you have a kid that likes plants they can experiment with food coloring and carnations/ celery. You place the plant in heavily colored water and observe.
If you have a kid that likes to play with fire then you could have them first theorize about how a fire can be best built and then have them start small fires using the methods they come up with and the methods that might be suggested by someone who already knows about convection, conduction, and surface area.
Supervision is recomended.
My fourth grade science project was on shoes. I went to the salvation army and asked the ladys who sort things to save single shoes... when i had a voriety of shoes - high heals- sandles- tennis shoes- soccor kleets- hiking boots- wrestling shoes... basicly what ever shoes intrested me the most.
I started by taking a picture of the shoes then i would take them apart very carefuly and then lay out what use to be a shoe. As i took apart the shoes and noted what the diffrences were i commented on how those diffrences could have made the diffrent shoes better suited for what they used to do. Then i noted the ware on the shoe and how the show might be altered to last longer.
in conclusion i assesed how what physicel effect the shoe might have had on the human wareing it.
I got first that year, good luck there are many good ideas out there that don't include chemicals although most people assosiate chemistry and only chemistry with science.
2006-12-06 04:39:55 · answer #2 · answered by wrestlerchick 2 · 0⤊ 0⤋
Put vinegar in a jar then put an egg with the shell in. Leave it in for awhile. After a couple of days the egg shell will disolve. You should change the vinegar every coulpe of days or the shell will stop dissolving. None of the mearsurments have to be exact so it is really easy.
Hope you try it!
2006-12-06 18:36:12 · answer #3 · answered by Bailey L 1 · 0⤊ 0⤋
Pop Rocks in a 1 litter Pepsi bottle will get their attention with the goal to find out why such a violent reaction?
To Havalishis:
Dry Ice for 4th graders???? Why not just give them lighters and gas to play with. What a seriously freaking DUMB idea.
"Dry ice burns like fire"
http://www.wonderquest.com/dry-ice.htm
To Rana Kate's idea:
Yeah, Kids playing with Borax that's another great idea...
Borax:
EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the central nervous system, kidneys and liver, when ingested. The effects may be delayed.
EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Animal tests show that this substance possibly causes toxic effects upon human reproduction.
http://www.ilo.org/public/english/protection/safework/cis/products/icsc/dtasht/_icsc05/icsc0567.htm
I swear lady, if you ask Yahoo trolls one more question regarding children I'm going to inform Child Protective Services about your a**.
You seriously need to be checked before you hurt some kid.
2006-12-06 01:54:00 · answer #4 · answered by dave_martin_7777 3 · 0⤊ 1⤋
Have you made Silly Putty? It's very easy, and all the littles I've known have loved it.
The recipe (Elmer's glue and borax, basically) and background can be found at http://www.stevespanglerscience.com/experiment/00000039.
I color it with powdered Kool-Aid. For stronger colors, powdered tempera works nicely. I
2006-12-06 01:57:44 · answer #5 · answered by Rana Kate 2 · 0⤊ 0⤋
volcanoe with vinegar and baking soda, but u probably already heard of that one
2006-12-06 01:51:01 · answer #6 · answered by Anonymous · 0⤊ 0⤋
you can work wonders with dry ice
2006-12-06 02:00:44 · answer #7 · answered by Anonymous · 0⤊ 0⤋