Thursday, April 10, 2014

Volcano fun, pt. 2

To further our study in volcanoes, we checked out several books from the library. One of particular interest was Will It Blow?, which helps you become a "volcano detective" and includes several experiments involving volcanoes and lava.

We chose to do lava races, where you test the speed of different liquids at room temperature, hot temperatures and cold temperatures. We used canola oil, maple syrup and honey, and graphed our results.

For the record, honey was ALWAYS the slowest. Syrup won in two out of the three races, but oil had the jump on syrup in the 'cold temperature' category.

We also observed how magma/lava can harden in different ways depending upon whether it was cooled quickly or slowly. If magma/lava is cooled quickly, it becomes smooth and shiny like glass. However, if it cools slowly, crystals begin to form.

 Our smooth lava sugar

Our slow forming crystal lava sugar--two weeks after the experiment, crystals are still forming around these popsicle sticks!

Studying volcanoes has been a lot of fun for the Finnlings (and me as well), and are just one of the joys of homeschooling here in the Finn house!

Date taken: March 25, 2014

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