Presents sitting under a Christmas tree drove me crazy every year. My mom would always say, “don’t shake it, you might break it.” With Christmas right around the corner and the kids’ anticipation building, this science experiment was a perfect fit.
A quick trip to the Dollar Store and I was able to purchase 6 boxes, a bag of bows, and 6 items to fit in each box. I chose items that my kids would think would be fun like dinosaur erasers, Nerds, a mini-flashlight, Band-Aids, and a Spiderman washcloth. In one box I put a dollar inside of it. I numbered the boxes on the bottom with a small sticker.
After my kids went to bed I set the boxes on the kitchen table, which lead to an excited breakfast conversation on what was in the boxes.
Observations are the basis for writing a hypothesis. I explained to my children how chemists use their senses to observe, then how these observations lead to guesses or hypotheses. Since we are studying the Periodic Table in chemistry we talked about how early chemists observed different elements.
They wrote 1 to 6 on their sheet of paper. I had them weigh each box and measure one of the boxes. Then I had them write what they thought was in each box. I did give them one hint; I purchased all the gifts from the Dollar Store. We discussed which box was the heaviest, lightest or weighed the same.