Kw-logo-holiday

Science Project: Lava Lamp

Ever wonder how a lava lamp works? All that light and slow motion liquid is so mesmerizing you may think it’s magic, but really, it’s science. And when you understand the science behind it it’s easy to make your own lava lamp!

Materials:

  • Clear bottle or jar (a liter soda bottle works well)
  • Food coloring
  • Water
  • Vegetable oil
  • Glitter
  • 1 Alka-Seltzer tablet
  • Flashlight

Procedure:

  1. Fill the jar ¾ of the way with oil
  2. Fill the rest of the jar with water.
  3. Add food coloring until you have your desired color.
  4. Add a sprinkle of glitter.
  5. Shine the flashlight so that it lights up the liquid in the jar. For extra effect, turn the surrounding lights off.
  6. Cut the Alka-Seltzer tablet into 8 parts and drop one by one into the jar.
  7. Watch as the color blobs climb up the jar and fall back down again, just like a lava lamp!

You must have noticed that when the oil and water were added to the jar they didn’t want to mix. That is because oil is less dense than water and so it rises to the top of a oil and water mixture. So here we have these layers of oil and water and then we drop a chunk of Alka-Seltzer tablet into the mixture. What happens?

Alka-Seltzer reacts with water to release Carbon Dioxide (CO2) gas, which is less dense than both oil and water. So up and up it goes through both layers of water and oil and when it reaches the surface the bubble pops and the bead of colored water falls back down. Groovy!

Though a store bought lava lamp works by heating up wax in and oil solution, this homemade Lave Lamp makes a great science project or a even just a fun experiment to do with friends.

Have Your Say

Why do you think the lava lamp is named after lava? Share your thoughts in the comment’s section below!

 

>

readers voted!

Comments

Truthjournal

Truthjournal wrote:

That is an amazing idea. Thanks to smart people
commented: Fri Jan 24, 2014

Chayluv

Chayluv wrote:

made it in 6th grade lol
commented: Sat Jan 11, 2014

Midapops

Midapops wrote:

We had one but it broke... .-.
commented: Wed Jan 08, 2014

there are 22 more comments

Please login or register to add comments


like this article?
Sign up now to get more just like it!

latest videos

F1078260263500

Coolest Science Experiment?

  • Baking soda volcano.
  • Potato battery.
  • Homemade lava lamp.
  • Making your own mummy.

related stories

Micro_micro_slime
There are plenty of ways to enjoy slime, no doubt about that. But one of the best ways to enjoy i...
Micro_micro_quicksand
Have you ever seen a movie where the hero is dashing through the jungle when they step in a bog o...
About 150 people in Chile had to leave their homes for the second year running after a volcano st...
The grooviest spy on the block, Austin Powers is back, baby, and it's about time! One of our top ...

Random in the forums

GawjussGracieex
Dear god this got bumped :O YAY
reply 17 minutes
FroggyBurton
FroggyBurton posted in New Users:
Greetings to whom reads this! My name is Howard and I want to welcome you to KidzWorld! So many kids waiting to be your friend! Feeling a bit shy to meet new people? Not to worry! Kids here are very friendly especially Jr. Mods, Mods and Admins! They all bring safety to this website and only try to make your needs/wants fulfilled. Please don't hesitate to ask me questions or add me :D
reply about 2 hours
MovingBrick
MovingBrick posted in General:
Dear god this got bumped
reply about 2 hours
Mrawsomegamer
Mrawsomegamer posted in Debating:
Oh! and if you did know about this, and sent an ##### to our school, then thank you for the support. :) We'll never be able to get over it, but we'll get by.  Thanks! :) R.I.P Mrs Maguire, gone but never forgotten...  :angel (Sorry for clogging up this debate, but the moral of the story is world wide, people are getting away with crimes like murder, and/or hurting somebody seriously...  This needs to be stopped... If the death penalty came back, I know for a fact it would scare people into doing the right thing, I don't know about America, but I'm sure it would in England.)
reply about 2 hours
MissFrankTurner
"I don't know about you, but you're looking 22". - Taylor Swift
reply about 2 hours

play online games

Hour-of-code-tumb

Codey the troll is lost! Help him avoid obstacles and get back into the computer...

Candy-quest-feature

Your troll is lost! Help it avoid obstacles and get back into the computer.

Fo...

Dragon-dash

Your dragon must return to guard the treasure! Help it gather lost coins and avo...

_thumb_100x100

Shoot blobs with different properties to merge yellow blobs. Your blobs can be r...

1005_cc_kidz_100x100_vlh

Candy's got her candies into a terrible mess, can you help her to sort them out?

Candy-100

A great online version of the famous Candy Crush. This is the best game launched...

_thumb_100x100

Bloons 2 is here! A worthy and awesome sequel at last to our original Bloons gam...

Frostbox_100x100

Explore the world or hang out with friends in your own condo. Get a unique look,...