Free Ppt 05 07 04

Making an erupting play dough volcano! By: Nermeen Essam

Question: Can you make an erupting volcano using cooking ingredients?

Hypothesis I/We thought that yes, we could make a volcano using cooking ingredients.

Supplies needed: *Tray *2 Paper cups *Bowl *Play dough *Scissors

Supplies needed for making play dough: *1 cup of salt *1 cup of flour *1 cup of water *Rolling pin *Food coloring *Bowl

Instructions: 1- Put salt and flour in a deep unbreakable bowl. Mix the dry ingredients thoroughly with hands or a wooden spoon.Slowly add water to which some drops of food coloring have been added.

2- Place the paper cup on your tray & wrap foil around it, folding the foil over the rim of the cup & shaping the remainder foil to resemble a mountain. 3- Place the play dough over the foil. Fold play dough over rim of cup as well.

4-Making the lava mixture: *3 tsps baking soda *1/2 cup white vinegar *Food coloring

After your volcano is built, put the baking soda in the volcano paper cup. Mix the food coloring with the vinegar in a separate cup. Pour the vinegar/food coloring mixture into the volcano & watch the eruption.

What happens? The volcano erupts and releases the lava mixture.

Conclusion: A reaction between the baking soda & vinegar is occurred, producing CO2. Pressure builds up untill the volcano can no longer contain the gas, so it erupts, the gas escapes, & pressure is released.

Bibliography http://www.create-kids-crafts.com/playdough-volcano.html Create Kids Craft Simply Moms http://www.simplymoms.com/art/playdoh.html

Free Ppt 05 07 04

by Nermeeeen

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