AdventurerJohannaReady to build your own lava lamp? All you need for this is an empty small bottle, oil, cold egg and a shower tablet. With a flashlight, you can illuminate the bottle from below and marvel at how oil and water connect and move up and down together.
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For the first step you need the empty glass bottle. Put it on your workplace. If you are ready, it can start.
Now fill water in the bottle. However, it should only be filled to a quarter with water. You can look at the next picture and see how full the bottle should be. A quarter is half of the half.
That's how full the bottle should be. Are you curious about what's going on next?
Take the cold paint for Easter eggs and open the packaging, maybe you need a pair of scissors.
Pick a color you want to dye your water with. Get the tablet out of the packaging.
Put the tablet in the water.
The tablet takes a few minutes to dissolve completely. You can always stir it with the wooden stick. Watch out if you take out the wooden stick, it dyes off. Put it on a plate best.
When the tablet has completely dissolved, you are ready for the next step of the experiment.
Now the oil comes into the bottle. Fill in so much oil until the bottle is about half full.
Watch carefully! What does it look like in your bottle? The oil floats up and the coloured water down. Or did the two liquids mix together while filling? What happens if you wait 2 minutes?
Oil and water are built differently, they have a different density, which is why the two liquids do not mix. They prefer to keep distance from each other. Since the water is denser than the oil, the oil floats above.
Next thing you know, you need the shower pill.
Divide the tablet into 3 or 4 parts so that it fits well through the opening of the bottle.
Let all parts of the effervescent tablet slide one after the other into the bottle and observe exactly what happens.
You're astonished, aren't you? Oil and water connect with each other through the shower tray and form large drops that rise.
Tip: Light up in the bottle with a flashlight from below, then you can observe the connection of oil and the coloured water even better.
Screw your bottle now. It looks like lava is brewing. Have fun experimenting.
Materials
Directions
For the first step you need the empty glass bottle. Put it on your workplace. If you are ready, it can start.
Now fill water in the bottle. However, it should only be filled to a quarter with water. You can look at the next picture and see how full the bottle should be. A quarter is half of the half.
That's how full the bottle should be. Are you curious about what's going on next?
Take the cold paint for Easter eggs and open the packaging, maybe you need a pair of scissors.
Pick a color you want to dye your water with. Get the tablet out of the packaging.
Put the tablet in the water.
The tablet takes a few minutes to dissolve completely. You can always stir it with the wooden stick. Watch out if you take out the wooden stick, it dyes off. Put it on a plate best.
When the tablet has completely dissolved, you are ready for the next step of the experiment.
Now the oil comes into the bottle. Fill in so much oil until the bottle is about half full.
Watch carefully! What does it look like in your bottle? The oil floats up and the coloured water down. Or did the two liquids mix together while filling? What happens if you wait 2 minutes?
Oil and water are built differently, they have a different density, which is why the two liquids do not mix. They prefer to keep distance from each other. Since the water is denser than the oil, the oil floats above.
Next thing you know, you need the shower pill.
Divide the tablet into 3 or 4 parts so that it fits well through the opening of the bottle.
Let all parts of the effervescent tablet slide one after the other into the bottle and observe exactly what happens.
You're astonished, aren't you? Oil and water connect with each other through the shower tray and form large drops that rise.
Tip: Light up in the bottle with a flashlight from below, then you can observe the connection of oil and the coloured water even better.
Screw your bottle now. It looks like lava is brewing. Have fun experimenting.
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