My project was called ‘Bubbles in a bottle’ and my question was ‘what quantity of food colouring will make the best lava lamp?’
You can see me explain my project in this video. I found out that 20 drops of food colouring makes the best lava lamp because it gives a better effect when the water is darker.
Mini-Scientist – lava lamp from St Peter’s, Bray on Vimeo.
In my research, I learned that oil is less dense than water so it floats on top of the water. I learned that the Alka-Seltzer mixes with the water to produce bubbles of carbon dioxide, which pushes up through the oil. I learned that there are two types of food colouring. Chemical is made in a lab, organic is made from plants.
My favourite part was when I actually tested my project. Emily from Intel judged my project and I went first. I didn’t mind explaining my project at all. Here are some photos from my project. Thanks for reading all about it!
Oisín
10:57 pm on January 6th, 2014
Oisín did a fantastic job on his project. He chose to work on his project by himself but he was so organised that he was one of the first to finish. It was a great question and I know his little cousins enjoyed the lava lamp Ois took home to them. Well done Oisín!
3:25 pm on January 8th, 2014
Well done Oisín – the lava lamp looks cool!
3:26 pm on January 8th, 2014
The lava lamps were deadly:)
3:28 pm on January 8th, 2014
Deadly work! Oisín’s lava lamps look better then the normal ones.
3:30 pm on January 8th, 2014
Oisín that is very well done!
3:32 pm on January 8th, 2014
Oisin your bubbles are brilliant. I wish I had been your partner!
3:33 pm on January 8th, 2014
Oisin’s lava lamp project was inspiring!
7:59 pm on January 9th, 2014
Well done Oisín I think your post is well written. You explain your experiment well. I thought you were excellent on the video also. You spoke clearly and seemed to have a very good understanding of your experiment and what was happening. Lovely lava lamp also. You show how interesting science can be.
2:22 pm on January 13th, 2014
I really enjoyed doing the science experiment and it was cool!