Yesterday we investigated different forces through a few very fun science experiments.

In our first experiment we measured out vinegar and put it into an empty bottle. We then put some baking powder into a balloon. We put the balloon over the bottle, allowing the baking powder and vinegar to mix. As it mixed it filled the balloon with air . . .  just like magic. We talked about hot-air balloons. We found out that it was something called Carbon Dioxide that filled the balloon.

   
   
   

For our second experiment we opened a bottle of soda water. We added a packet of Mentos to the water. It made the water shoot out of the top of the bottle. We had to stay back, so as not to get hit by the rush of water.

Our third experiment was a blast . . . literally! Similar to the last experiment, we opened a bottle . . .  but this time it was Diet Coke. We added 10 Mentos and it went BOOM!, shooting straight up into the air.

We talked about our experiments today, and learned that it was also Carbon Dioxide. The Mentos have lots of tiny holes on them. When they fill with Diet Coke it releases tiny bubbles. These tiny bubbles shoot up to the top of the bottle, and up into the air.

This video shows a similar experiment with a few different drinks.
[kml_flashembed movie="https://www.youtube.com/v/Y71u18_Euxg" width="425" height="344" allowfullscreen="true" fvars="fs=1" /]

A great last full week in P1C. See you all Monday,

Mr.Cook