The secret behind the lava lamp is liquid density in this case how much matter is packed into the different liquids.
Making a lava lamp with oil and water.
Once it reaches the bottom it touches the bicarbonate of.
To get started with your homemade lava lamp you will need 4 simple ingredients.
Oil and vinegar have different densities.
How to make a lava lamp homemade lava lamp supplies.
Carefully rest the bottle of oil and water directly on the lens of the flashlight and repeat the experiment above with the bright light shining up and through the liquid.
For a true lava lamp effect shine a flashlight through the bottom of the bottle.
Water bottles mason jars or plastic cups.
25 awesome science fair ideas for kids.
Alka seltzer tablets generic is fine lava lamp tip.
Food colouring a bright colour is best lava lamp instructions.
The oil and water do not mix because of something called intermolecular polarity.
A clear plastic or glass bottle or jar.
A bottle of vegetable oil.
Making lava lamps with your kids is a simple and fascinating science experiment.
Fill up to of t the glass mason jar with vegetable oil fill the remaining of the glass mason jar with water leaving about an inch empty at the top.
To make a cool looking lava lamp you ll need a large flashlight like the one in the photograph.
Baby oil or cooking oil.
Polar and non polar molecules repel each other therefore the vinegar droplets will not mix with the oil giving you a colorful lava lamp style display.
Vinegar is more dense than oil so this is why it sinks to the bottom of the glass.
To begin the oil stays above the water because the oil is lighter than the water or more specifically less dense than water.
How to make a lava lamp what you need to make a lava lamp.
Add 3 4 drops of the food colour to the water and oil solution and mix it well.
How does it work.
This makes for a great science activity for kids.
The lava lamp experiment explores water properties cause and effect density and polarity.
Diy lava lamps are a classic science activity perfect for all aged kids.
The science behind a homemade lava lamp.
Next seal the bottle shake it up and place it on top of a strong flashlight like the flashlight on your phone.
The oil and water should separate.
Fill the bottle about a quarter full with water.
Top up to the near top with the vegetable oil.
Conclusion i love this simple diy lava lamp experiment because you can make it using just a few simple pantry ingredients and recycled jar.
When using aspirin eno tablet.
Set up this experiment on a plastic tray or dollar store cookie sheet to minimize.
Then add some salt to the bottle or an effervescent tablet so the mixture starts fizzing.
Or 1 liter bottle we used a 2 liter and it used way too much oil vegetable oil or whatever kind you have water.