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Targa, Panamera Turbo
Join Date: Aug 2004
Location: Houston TX
Posts: 22,366
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Mini-Science Experiment Ideas Needed (for a 2nd grader)
Our Son has to do a mini science experiment on Friday. Of course I have 1000 ideas all of which will require extensive reasearch and preparation. Friday is too short a time frame for an NSF grant so we have to come up with something simple, fun and not too messy or dangerous.
I was thinking about having hime bring in my multi-meter and several jars of different liquids and show the various difference in conductivity. My Wife thinks thats stupid so of course I have to dig my heels in further! I'm drawing a blank on what to suggest. He wants to blow something up but that is not an option. You guys have any ideas?
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02-14-2007, 01:02 PM
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Formerly bb80sc
Join Date: Aug 2001
Location: Hollywood Beach, CA
Posts: 4,361
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You could always do the conductivity thing...have several items and see which pass the current best to light up a lightbulb...and measure the voltage as well.
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Cheers -Brad 2015 Cayman GTS 2015 4Runner Limited |
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02-14-2007, 01:06 PM
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canna change law physics
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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02-14-2007, 01:07 PM
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Hell Belcho
Join Date: Sep 2006
Location: Oz
Posts: 9,249
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liquid plumber
aluminum foil 2L soda bottle under parental watch of course.
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Saved by the buoyancy of citrus. |
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02-14-2007, 01:09 PM
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Registered
Join Date: Nov 2003
Location: Seattle
Posts: 1,247
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Remember the "hustle" thread from yesterday. Have him do that and explain how it works.
Barring the use of explosives, in second grade, if science isn't like magic, it isn't interesting enough to hold the attention of his peers.
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"Rust never sleeps" |
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02-14-2007, 01:32 PM
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Mentos and Diet Coke
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02-14-2007, 01:41 PM
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Soda bottle w/ vinegar and balloon filled with baking soda streched over neck of bottle. Although I do like Nostril Cheese's Drano/aluminum foil bomb better...
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--------------------------------------------------------------------------- "There is nothing to be learned from the second kick of a mule" - Mark Twain |
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02-14-2007, 02:01 PM
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Registered
Join Date: Jan 2006
Location: Alameda, CA
Posts: 419
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soap in a microwave.
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02-14-2007, 02:14 PM
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Targa, Panamera Turbo
Join Date: Aug 2004
Location: Houston TX
Posts: 22,366
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The diet Coke Menthos would be good but it would be too messy as would the volcano. Condustivity of various coins and solutions would be easiest.
The hustle trick would be cool but I'm not so sure they would allow hootch in a 2nd grade class room (here in Tejas, they save that for Jr High).
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Michael D. Holloway https://simple.m.wikipedia.org/wiki/Michael_D._Holloway https://5thorderindustry.com/ https://www.amazon.com/s?k=michael+d+holloway&crid=3AWD8RUVY3E2F&sprefix= michael+d+holloway%2Caps%2C136&ref=nb_sb_noss_1 |
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02-14-2007, 02:25 PM
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Used to be Singpilot...
Join Date: Oct 2006
Location: Sioux Falls, SD is what the reg says on the bus.
Posts: 1,867
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Show the teacher how putting Sterno in the intake runner of his Dodge Minivan will improve his mileage long enough to get an A on his science project.
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02-14-2007, 02:47 PM
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Greasy Member
Join Date: Mar 2006
Location: Indiana
Posts: 1,457
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I suggest the good ol' fassion solar still.
It can be made several ways, but the outcome is always the same: Make drinkable or clean water from saltwater or water with food coloring in it. It will function either outside under sunlight, and can also work indoors under a halogen lamp. Easy to build, usually worth a solid A. If you need plans, PM me. -Nick
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02-14-2007, 03:10 PM
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Get a decent battery. Even a 9 volt will work. Attach two leads and put the in a glass of water. Explain that the bubbles are hydrogen. With a bigger battery, you could put a balloon over the jar, let it fill up and with a match, watch it burst into flames.
Dave
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02-14-2007, 04:29 PM
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Free minder
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02-14-2007, 04:31 PM
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My eldest daughter just did her 3rd grade science fair project. Last year she and a friend measured the thermal conductivity of different house-hold materials by measuring how much mass an ice-cube lost via melting after sitting for 1 minute on each substance. They used such things as a ceramic bowl, a glass bowl, ( all with little conductivity), an aluminum pizza pan (lots of conductivity) and a steel pot (some, but less then the aluminum). They were selected from their grade and school to present at the town's science fair. My assistance was to let them use my parts scale, showing them how to use it and helping them to follow something resembling "scientific process". They had already learned something about that in class, but it was still a new idea for them.
This year they tried to see how well eggs floated in different liquids. Things like olive oil, water, milk and (at my wife's and my suggestion) salt water. In each case they measured the weight of the liquid, how far the level of the liquid increased when the egg (and salt) was put in, and if the egg floated or not. Being their second time around, they were much more familiar with the process.
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John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman |
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02-14-2007, 04:39 PM
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Quote:
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John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman |
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02-14-2007, 04:40 PM
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Registered
Join Date: Jul 2001
Location: Lawrenceville GA 30045
Posts: 7,377
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How about have a boiled egg sink in warm tap water, remove the egg, add LOTS of salt (thereby increasing the density) and replace the egg and it floats. Try it at home to make sure you have enough salt for the egg to float - measured for the container.
Edit - darnit - didn't see the last half of Jon's post above.
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Mark '83 SC Targa - since 5/5/2001 '06 911 S Aerokit - from 5/2/2016 to 11/14/2018 '11 911 S w/PDK - from 7/2/2021 to ??? |
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02-14-2007, 04:59 PM
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Who is John Galt?
Join Date: Jun 2003
Location: Knoxville, TN
Posts: 638
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Re: Mini-Science Experiment Ideas Needed (for a 2nd grader)
Quote:
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'79 911sc Targa '02 slk230 kompressor '84 Tamiya Falcon A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship. The average age of the world's greatest civilizations has been 200 years. |
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02-14-2007, 05:11 PM
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Double Trouble
Join Date: Nov 2002
Location: North of Pittsburgh
Posts: 11,705
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Build a gererater.
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I used to be addicted to the hokey pokey..........but I turned myself around.. 75 914 1.8 2010 Cayenne base |
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02-14-2007, 06:35 PM
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Registered
Join Date: Jan 2005
Location: Houston (The Vintage), Texas
Posts: 4,523
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Light Peanuts on fire, and show how the oils burn because of the calories or something like that....aww heck just do some fun stuff with dry ice or Liquid Nitrogen and bannanas.
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-Tom '73 911T MFI - in process of being restored '73 911T MFI - bare bones '87 924S - Keep's the Porsche DNA in my system while the 911 is down. aka "Wolf boy" |
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02-14-2007, 06:40 PM
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Super Moderator
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Quote:
 Lubey, my wife pulled out our "Science Experiments & Amusements for Children" book. It was mine when I was a kid. Here is a selection... If you like any, I can send you the details.. 1. Using convection to route smoke down into a shobox and up through a chimney 2. Making a compass with a cork, needle, bowl of water... 3. Making a simple electric motor (this was MY science experiment 30 years ago) 4. Rust uses up oxygen 5. A smiple 3-D viewer (stereoscope) Not sure if these are at an appropriate level.
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02-14-2007, 06:58 PM
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1970/1982 Porsche 914-6/911SC 2.7 RS
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