Make a stack of 2 popsicle sticks and use a rubber band to tie them together on one end only, about ¼-inch from the end.ģ. Double tie the bands to keep the sticks tight.Ģ. Make a stack of 7 popsicle sticks and use rubber bands to tie them together on both ends, about ½-inch from each end. In ancient times, catapults sometimes included the colors or coat of arms of the attacking army so you can create your own kingdom or copy the imagery of Rome or your favorite Greek city-state.ġ. Before you start making the catapult, you can paint or draw on each stick to give your catapult a unique look. Now that you’ve gathered your materials, here are 5 steps to build your catapult:Ġ. Let’s start making our catapults so we can see what Newton saw in 1687!ĬAUTION: Do not launch hard objects from these catapults! Do not aim at breakable objects either! So as much as we push down on the spoon of our catapult, it will spring back with that much force. His third law is a bit easier to grasp: every action has an equal and opposite reaction. In terms of our catapult, how fast our pom pom flies is determined by its mass and the force we put on it (i.e. Newton’s second law is actually a mathematical equation, but it states that the acceleration of an object is proportional to an acting force and inversely proportional to its mass (F=ma). He defined three foundational principles of physical science and mechanics called the “laws of motion.” Sir Isaac Newton was a British mathematician, physicist, and author in the late 1600s. Who is Newton and What Is a Law of Motion? Making these will train fine motor skills, examine Newton’s second and third laws of motion, and can be fun art projects. This popsicle stick catapult is not only easy to build for all school-aged children, but it’s also a fun toy after you make it. Bringing STEM activities into your home is easier than you think.
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