To compare the weight of different items, we cut a gallon jug in half. We tied three pieces of fishing line to the top of the jug, then attached those to a paper clip and rubber band. We hung it on a door handle and taped a piece of paper on the door. We grabbed food from the cabinets and started weighing. We marked the paper according to how far the jug dropped with the ounces of each item. Things with lightweight packaging were easiest and most accurate. An 8-ounce glass jar of taco sauce was a little tricky. We figured out by using the marks we made, that the taco sauce and its container weighed about 20 oz. Then we were able to figure out the weight of the jar itself, too... throwing a little math in there.
The boys had fun with it. Isaiah understood comparing the weight of different things. Sam liked putting in his toys and guessing how much they weighed. We briefly discussed the difference between weight and mass. We have a book on gravity that they both love to read because it has great pictures, so they had some basis for weight vs. mass although they probably won't really get it for a while. :)
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The boys had fun with it. Isaiah understood comparing the weight of different things. Sam liked putting in his toys and guessing how much they weighed. We briefly discussed the difference between weight and mass. We have a book on gravity that they both love to read because it has great pictures, so they had some basis for weight vs. mass although they probably won't really get it for a while. :) 
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