Science Fair Ideas - Page 2

Ghoulish Delight · 12-17-2008, 12:54 PM

There's always the old "What Obejects are Conductive?" Get a battery (the big lantern batteries are best), attach a wire from the negative lead* to a lightbulb. Run a second wire from the bulb to the other lead, but cut it. Wrap the two cut ends of the wire around a couple of nails and space the nails a bit apart. Then take different objects, touch them to both nails and see which ones light the light.

*[size=1]I think that's the right way to do it safely, you'll want to double check that though[size]

Alex · 12-17-2008, 01:01 PM

Dude! You gave away the answer.

But yeah, that's how you do it. Provide a demonstration of water draining in both directions along with a poster board explaining the Coriolis effect and why it is a massive force that is too weak on such a small scale (without the math, presumably).

Go way out on a limb and find an online pen pal to a web cam demonstration of the same mixed results from the southern hemisphere.

katiesue · 12-17-2008, 01:30 PM

Quote:

Originally Posted by Betty

I love the idea - but dont' have a blow torch nor another reason to buy one. I'm guessing a lighter won't do the trick?!

You could use a lighter, it's just not as fun as using a blow torch

Moonliner · 12-17-2008, 01:32 PM

Quote:

Originally Posted by Ghoulish Delight

There's always the old "What Obejects are Conductive?" Get a battery (the big lantern batteries are best), attach a wire from the negative lead* to a lightbulb. Run a second wire from the bulb to the other lead, but cut it. Wrap the two cut ends of the wire around a couple of nails and space the nails a bit apart. Then take different objects, touch them to both nails and see which ones light the light

That's how I learned hamsters are conductive.

Moonliner · 12-17-2008, 01:38 PM

Quote:

Originally Posted by Betty

I love the idea - but dont' have a blow torch nor another reason to buy one. I'm guessing a lighter won't do the trick?!

A number of places sell mini butane torch's.

Very handy in an amazing number of circumstances.

(Don't ask about the hamster)

LSPoorEeyorick · 12-17-2008, 01:42 PM

And then you can use it for making creme brulee (or bananas brulee, in our house.)

Moonliner · 12-17-2008, 02:12 PM

Quote:

Originally Posted by LSPoorEeyorick

And then you can use it for making creme brulee (or bananas brulee, in our house.)

Wait, are you saying you'd invite me into your home. With a blowtorch?

*sniff*

I'm touched.

Ghoulish Delight · 12-17-2008, 02:15 PM

Or lighting a crack pipe.

Kevy Baby · 12-17-2008, 05:24 PM

Quote:

Originally Posted by Betty

I love the idea - but dont' have a blow torch nor another reason to buy one. I'm guessing a lighter won't do the trick?!

What other reason does one need to buy a blowtorch?

Quote:

Originally Posted by Alex

Dude!

I'm just amused that Alex said "Dude!"

12-17-2008, 12:54 PM	#11
Ghoulish Delight I Floop the Pig Join Date: Jan 2005 Location: Alternative Swankstyle Posts: 19,348	There's always the old "What Obejects are Conductive?" Get a battery (the big lantern batteries are best), attach a wire from the negative lead* to a lightbulb. Run a second wire from the bulb to the other lead, but cut it. Wrap the two cut ends of the wire around a couple of nails and space the nails a bit apart. Then take different objects, touch them to both nails and see which ones light the light. *[size=1]I think that's the right way to do it safely, you'll want to double check that though[size] __________________ 'He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.' -TJ
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12-17-2008, 01:01 PM	#12
Alex . Join Date: Feb 2005 Posts: 13,354	Dude! You gave away the answer. But yeah, that's how you do it. Provide a demonstration of water draining in both directions along with a poster board explaining the Coriolis effect and why it is a massive force that is too weak on such a small scale (without the math, presumably). Go way out on a limb and find an online pen pal to a web cam demonstration of the same mixed results from the southern hemisphere.
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12-17-2008, 01:42 PM	#16
LSPoorEeyorick scribblin' Join Date: Jan 2005 Location: in the moment Posts: 3,872	And then you can use it for making creme brulee (or bananas brulee, in our house.)
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12-17-2008, 02:15 PM	#18
Ghoulish Delight I Floop the Pig Join Date: Jan 2005 Location: Alternative Swankstyle Posts: 19,348	Or lighting a crack pipe. __________________ 'He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.' -TJ
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