Branden's Experiment : Atoms and Molecules

He attached two coated copper wires to the two terminals on a 9-volt battery. He then put the other ends of the wire into a jar of water mixed with baking soda. The ends began causing electricity to flow through the water and we see this in the bubbles and fizzing that was coming off the ends.

This caused the wire connected to the positive terminal to turn a bluish green color; similiar to what you might see when a copper item becomes discolored in weathering over time.

Very cool!

Abby's Chemical Reaction Experiment

Abby put vinegar into the bottle, then added red cabbage water. It rolled into the bottle a greenish color and as soon as it hit the vinegar, it turned pink. Very cool.

 

We then added baking soda from a balloon that was attached to the top and when the two reacted, it caused fizzing, another color change and the release of carbon dioxide that inflated the balloon.

Having fun with science this year! :)