ELEPHANT TOOTHPASTE!!

You cannot miss this experiment!!! It is so fun and has some "WOW" results.  You'll see where it gets its name shortly!  I found the experiment here and just knew I had to try it. 


Here's the steps!  Give  it a try for yourself!!!

Materials: 

 yeast

warm water

bowl

pan

dish soap

food coloring

6% hydrogen peroxide (I used clairoxide clear developer from a beauty supply store)

Steps: 

1. set plastic water bottle in pan.

2. Mix together 1 tsp. yeast and 2 tbsp. water and let set while you make the other solution!

3. Pour 1/2 cup of the developer (peroxide) into bottle, add 4-5 drops of food coloring, and then a squirt of dish soap.

4.  Pour yeast into bottle and see what happens! :)

Prepare yourself for OOOOHHHHSs and AAAAHHHHHsss!!! It happens quickly but goes on for awhile! The reaction is exothermic and the bottle and foam gets warm as well. 

If you want the scientific explanation: (here it is copied from the website above)

"The reaction is summarized by this formula: 2 H2O2  -->  2 H2O + 02.

Hydrogen peroxide (H2O2) naturally breaks down into water and oxygen.  It is stored in opaque containers to help slow down this process.  Catalase (an enzyme in all living things, including yeast) speeds up the reaction.  Dish soap catches the oxygen and makes bigger bubbles and the food coloring makes it look cool.  The foam and bottle feel warm because the reaction is exothermic--it releases energy as heat."

 Here's a freebie to go with the awesome experiment:   Click the picture below to get it!

I'm linking up with Classroom Freebies as well!








Have a great rest of the day everyone!