Do you know how a volcano eruption works? Hello! My name is Carol And today we are going to make a lava lamp to learn more about density and chemical reactions.
Have you seen the lava of a volcano? It's pasty, looks like mud, it´s orange And it´s extremely hot Volcanos are like monsters, they are harmless while sleeping But when they wake up with ground movements they create clouds of smoke and rivers of lava The mud i talked about is actually melted rocks with fire. When the tectonic plates beneath the volcano moves The volcano wakes up and pushes out all the lava inside it The lava comes from deeper layers of the Earth And is one of the most amazing nature´s events Initially the lava is red and hot And when it spreads it hardens and forms rocks There are around 1.
500 active volcanos in the world And many of them are responsible for forming the islands on our planet. But how are we going to create the mud without fire? Calm down Ju!
We are going to use the ingredients that we have in our kitchen Materials needed Pet bottle two effervescent tablets dye ink cooking oil Add oil until almost half the bottle Fill the rest of the bottle with water almost to the top Leave about 5 cm from the top of the bottle Add a few drops of dye ink If you don´t have dye ink, you can use other cooking ingredients like we taught Turn on your mobile phone flashlight and place it under the bottle Turn of the lights Insert the effervescent tablets in the bottle and watch what happens But how did this happend? Did you noticed that despite putting the water after the oil it went beneath the oil? This happened due to density That measures how light one substance is compared to other.
when a substance is dense it means it is heavy For exemple, if you have ever droped a ball on a pool and it floated it was because it is lighter than water that is, it is less dense than water. in our lamp, the water is denser, that is, heavier And the oil is less denser, that is, lighter That is why the oil floeated above the water Then we put the effervescent tablet When the tablet comes in contact with water generates the effervescence effect That is, releases a gas into the water called carbon dioxide It is a very fast reaction between the tablet and the water That releases this gas that wants to expand to outside the bottle This is a very light gas that rises to the top of the bottle carrying a few bubbles of water They cross the oil layer together And when they reach the surface The gas is released and says goodbye to the water Due to being heavier than the oil, the water goes down to the bottom of the bottle creating the lava effect Keep in mind that this was illuminated by the flashlight on your phone. See how easy it is learning about science and technology?
See you in the next episode Bye! Check out how cool it is!
