Wednesday, May 16, 2012
Start by cutting out a third off an empty plastic bottle. Tape the bottom of the bottle onto a board.
Crumple up newspapers into balls and tape around the bottle making the rough shape of a volcano.
Make a paste of flour and water. Cut newspapers into long strips, dip into this paste and then wrap the strips around your volcano.
Keep wrapping layers upon layers.
You can make ridges or bumps or whatever you like. Then let it dry overnight. (it needs to dry fully. Warn the kids about this before you start)
The next day, paint your volcano. Let it dry. Then the experiment can start.
Volcano eruption recipe:
1 tbsp of bicarbonate soda - Place this inside the bottle
mix together separately -
1/4 cup of water
1/4 cup of vinegar
a few drops of red food colouring
a few drops of washing up liquid
* Depending on your bottle size, you may need to double of triple up the amount stated above. We doubled up.
Pour this mixture into the bottle. Stay back and watch the eruption!
Full on volcanic eruption. Beautiful!