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how to make a lava lamp

how to make a lava lamp
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hve you ever wanted to make your own lava lamp ?? its very simple .
Materials
1. Vegetable oil
2.water
3.food coloring
4.alka seltzer



 
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Step 1Step 1

step 1 get your bottle and fill it 3/4 full of veg oil

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20 comments
Feb 18, 2010. 8:07 AMAll_Stars says:
I heard you can replace alka seltzer tablets with salt. I know this is true but which one is better to use? I really need my answer fast because I have a science fair project coming up. Thank you!
Oct 25, 2009. 9:28 PMalex and neetu says:

how can i make it last more longer? and can alka seltzer be replaced by any thing else?

Jan 5, 2009. 2:24 PMlittleangels says:
Would baking soda and vinegar last longer than alka seltzer?
Jan 24, 2009. 1:10 PMzonemad96 says:
I think it would
Dec 23, 2008. 10:03 PMSadieX says:
If someone combined this Instructable with this one : http://www.instructables.com/id/Cool-Cloud-Lamp!/

then you've got yourself a lava lamp. ;D

a strong light bulb might give off enough heat so that it bubbles, like a real lava lamp.

if it doesn't it'll still look better being lit up instead of just in a bottle. ;D
Aug 28, 2008. 8:42 AMDaNerd11 says:
how much water do u put in and how long duz it last?
Apr 4, 2008. 12:06 PMthinguy says:
I knew how to do this and yours was better so if u can make a cooler one like red with black
Mar 4, 2007. 8:01 AMdhoncave says:
don't hope on it too much guys...the way i see it.it's a one time lava lamp.when all Alka-Seltzers are dissolved.there won't be any movement anymore.real lava lamps make use of the heat from the lamp to move those blobs around.
Mar 2, 2007. 12:27 AMT3h_Muffinator says:
Err, I've been trying to make lava lamps for years and have never been successful. PLEASE add more pictures/ more detailed instructions.... and a video of it in action.
Feb 25, 2007. 4:04 PMcry_wolf says:
This obviously looks like a good project, but the instructable, sadly, is not very in depth. I know it has potential, so please add some more pictures and better instructions and republish please. =]
Feb 25, 2007. 2:21 PMlemonie says:
step 2 is fill the rest with water . What about the light?
Feb 24, 2007. 1:01 PMLasVegas says:
Please finish this instructable! It's a good idea, but the description of the process is overly vague and it desperately needs photos/illiustrations.
Feb 24, 2007. 1:18 PMDzwiedziu says:
Ditto. Also a movie would be greatly appreciated.
Feb 25, 2007. 2:40 AMMr.Asmith9 says:
I think its a really good idea, but befor I go try it I would also like more information about it and what not. But other then that sounds awesome!

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Author:Coolyo