Rest of Water Stem Projects

Service Description

The first two pages of this Stem project talk about Buoyancy or Upthrust and how the experiment shows how a bowl of heavy rocks can be floated on a popsicle sticks raft with only air in the two bottles to float in the water. The 3rd picture shows the materials necessary for the task of a bowl of heavy rocks, glue, some rubber bands, 23 popsicle sticks, and a scale. It starts out by talking again about the floating raft and Buoyancy or Upthrust. First so many popsicles the width of a stick are glued together, and another is placed the opposite direction and glued on with one more on the other end of the glued sticks. Then the page says to take three more sticks and put glue on the ends of them because with instructions from the next page two more sticks are placed across in that glue. Then that fourth page gives instructions to glue two more sticks at the ends of three more sticks so that when all done you have two sets looking like two letter E's. Rubber bands will be place in the E's to hold the bottles on. Then the other ends of the E's will be glued, one E at a time, to the underside of the other sticks that had been glued together. Now place the empty bottles on each side of the raft inside the rubber bands. Your Boat is now ready to float with the bowl of rocks on it in the 6th picture. It also says to extend the thoughts with thoughts of various foods in the bowl. It said a sail could be added and another stick at the bottom for more movement. It said bigger bottles could be used or two rafts attached together or more sticks across to make it a platoon which is what Grandma's Grandfather made in real life with barrels. They fished upon it many times and it weathered through a storm. Something Grandma will never forget. The last for pages in this lesson are just patterns for experiments Grandma misplaced, they are irrelevant. The 6th page talks about how the weight help the raft hold up because of the heavier weight on top and it is all proportioned. It all says it happens because of density and how pennies and things with no air fall to the bottom. It also talks about how submarines are proportioned with water inside or air to drop down or float. My grandson learned all those gages in the navy.