Coke & Mentos

One of the highlights of science week was the coke and mentos geyser.

Check out the you tube clip below for more information.

http://www.youtube.com/watch?v=ZwyMcV9emmc

To make this an experiment (not just a fun mess) we looked at some of the things we could change - the variables. To make it a fair test, you only change one variable at a time.

Our first test was;

• Diet coke & peppermint mentos

Our second test was:

• Diet coke and fruit flavoured mentos

Our third test was

• Diet lemonade and peppermint mentos

We observed that:

• You could still see the mentos lollies in the bottom of the bottle.
• It didn't make any difference when we used fruit flavoured mentos lollies.
• The diet lemonade went higher than the coke.
• The coke and lemonade didn't taste very good afterwards.

If you want to see what this experiment would be like with 158 bottles - click on the link below.

http://www.stevespanglerscience.com/content/science-video/geyser-tube-158-bottles

The Steve Spangler site has some great experiments you can try at home, but you do need to log in. This is a simple process - but make sure mum/dad do it for you!

AND ASK MUM/DAD BEFORE YOU TRY ANY OF THESE AT HOME!!!