We have been learning about the effects of heat.
A few weeks ago we made play-dough in our school kitchen.
Last week Tristan used play dough to make a model volcano.
Ms. McGinley has been teaching 4th Class all about volcanoes.
We learned about the different parts of a volcano.
The burning liquid inside the volcano is called “magma”. When it flows out of the volcano it is called “lava”.
We learned about the volcano in Yellowstone National park in North America.
Other places that have lots of volcanoes are Hawaii and Iceland.
We learned about the eruption of Mount Vesuvius in 79 AD which destroyed the city of Pompeii in Italy.
We conducted experiments with Ms. McGinley to see how a volcano erupts.
We needed the following equipment:
- a bottle with the top cut off
- play dough to make the shape of the volcano
- baking soda
- red food colouring
Tristan and Sean filmed the experiment last week.
Step 1: Sean poured a small amount of vinegar and red food coloring into the bottle.
Step 2: Tristan poured a spoonful of baking soda into the bottle.
Watch what happens when the vinegar and baking soda combine in our video.
The chemicals in the vinegar react to the baking soda. The mixture fizzes up and pours out over the sides of the volcano, just like when lava pours out of a real volcano during an eruption.
We really enjoyed this experiment even though it was very messy!