Sodium in Water Demo – A Safer Alternative

The reaction of sodium and water can be quite vigorous and potentially dangerous if appropriate safety precautions are not followed.  The reaction is also so fast that students often have difficulty observing it.  Here’ a slower and more controlled version of the demo that will captivate your students.  It’s key ingredient is mineral oil.

 

 

Flapjacks

 

pancakesHaving reviewed properties and changes in matter, a super activity is to challenge groups in your class to a “Build the Best Pancake” competition.  A class discussion about what is meant by the term “best” will likely follow and for your class to narrow it down to taste and fluffiness helps students see their results while ensuring that the final product is edible.

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