Science - Which One Will Erupt?

This afternoon, the children were asked to make their scientific guess about which powder mixing with vinegar would erupt. 

First, I introduced the three powder for this experiment, salt, flour and baking soda. The children had a chance to taste salt and feel the three powder with their hand. As well, they had a chance to smell vinegar. 

We needed to add one spoon of powder into each yogurt container.  

Then, we added a spoon of vinegar into each powder.

It was time to see which one erupted!

At the end, we all saw what happened when vinegar mixed with baking soda. Look! A big bubble!

The children enjoyed this science experiment so much that we repeated this activity three times this afternoon! The children learned to follow the steps to conduct an experiment; as well, we learned to make our scientific guesses - hypotheses.