-
x

Meet New Friends!

Recommended friends are based on your interests. Make sure they are up to date.

Friends ff8c072dd79a91c1300f032d674241a8d64367100ffb1f25fa3f9bec4a05319f
Kidzworld Logo

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!

 

23 Comments

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 ...
F1078260263500

Coolest Science Experiment?

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

General In The Forums

Pinklilylane
Pinklilylane posted in Debating:
"DevA3" wrote: Yes. I do support Donald Trump; because he has a good leadership quality and I am sure he will become a good president. If he can be a successful business man, then he can be a successful  president. That's my way of how I see him as a president. Lol why? Why would you support him?
reply 10 minutes
Pinklilylane
Pinklilylane posted in Debating:
"AnnaOfExquizurd" wrote: "Streety43" wrote: Donald Trump became our 45th president yesterday. Do you support him and his actions? I do support him and his actions. He's the leader of our country, whether we like it or not, and we need to help him, as our government is based on the people. When you wish for him to fail, you're practically wishing for the country to fall... which isn't a good thing for the citizens o.o Okay so i kinda get this but what are you thinking? He is dumb and he should be impeached.
reply 11 minutes
Kirsteeeeen
Quiet, sensitive, and hard working.
reply about 1 hour
Kirsteeeeen
Kirsteeeeen posted in Random:
As part of the LGBT community, I fully respect and support them.
reply about 2 hours
Kirsteeeeen
Kirsteeeeen posted in Random:
Green
reply about 2 hours