![]() ![]() Otherwise, a table saw will need to be used by an adult only. It may be easier to go into a store such as Home Depot or Lowes and ask them to cut it for you. Step 1: Cut all wood according to the measurements above. Gorilla tape, to decrease the resistance of the bungee cord (Also a last minute addition!).(Not completely necessary, but it was a last minute addition made by my husband to increase the longevity of the cross arm.) 3/8″ x 8″ carriage bolt with one washer and a nut to fit.A bunch of small drywall screws at least 1 1/4 inch.A plastic cup or container to hold the mini pumpkin in.1 piece of wood, 21 inches long (One edge should be cut on an angle.).The relief cut should start 4 1/8″ from the front of the catapult.) 2 pieces of wood, each 18 inches long (Both of these pieces need to have a square cut out too for a joint for the uprights.3 pieces of wood, each 10 1/2 inches long (2 of these pieces need to have a square cut half the width of the wood on one end to form a “joint”.).2 pieces of wood, each 5 5/8 inches long.Where we determined what worked for us and what we needed to improve.Step 5: Analyze Results / Draw A Conclusion. He recognized that the smaller the pumpkin the farther it will go (HOORAY!).Is there anything else that can improve this or make the pumpkins go farther?.How far did he think the miniature pumpkins would fly?.The Scientific Method Step 1: Ask A Question. My five-year-old is quite analytical, and you know I love sneaking educational concepts into our crafts, so prior to explaining how this contraption would be built, we reinforced the Scientific Method. This fall-themed STEM project was truly HOURS of fun! Nothing gets my boys more excited than telling them they’ll get to smash stuff. My four boys (Yes, I recruited my handy hubby for this pumpkin project) and I made a miniature pumpkin catapult for kids to launch pumpkins across our driveway.
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