![]() Under Siege! Use a Catapult to Storm Castle Walls: explore the settings on the Ping Pong Catapult that control whether the ball will fly into into a castle wall or over it.Two-Stage Balloon Rocket: build a multi-stage balloon rocket and explore Newton's laws of motion.Build a Popsicle Stick Catapult: build and experiment with a simple catapult made from wooden sticks and rubber bands to explore the physics at work in a catapult. ![]() Paper Rocket Aerodynamics: explore the design of a straw-blown paper rocket and the variables that affect its flight.Mini Trebuchet: make a mini trebuchet from wooden sticks and craft materials and see how the movement of the lever arm relates to the path and distance of the projectile.Launching Homemade Baking Soda Rockets: learn more about chemical reactions when you blast a homemade rocket into the air using baking soda and vinegar.How is this different than a chemical reaction? Erupting Diet Coke® with Mentos®: explore the physical reaction that happens when you mix Diet Coke and Mentos.It helps them learn how things work and get their creative juices flowing. The name is derived from the Greek (against) and (to hurl (a missile)). Here are the materials for the Catapult Large Craft Sticks Rubber bands Plastic Spoon Plastic Cup Cotton Balls Have fun with this project Encourage your kids to do more hands-on STEM projects. They shot rocks to break castle walls, or pitch or hot tar to set the target on fire. Often, catapults were set on higher ground or on castle towers to let them shoot farther. Any machine that hurls an object can be considered a catapult, but the term is generally understood to mean medieval siege weapons. A catapult is a type of machine used as a weapon to throw rocks or other things such as hot tar, that would cause damage to something else. Build a Gauss Rifle: use magnets and ball bearings to set up a Gauss rifle and experiment to see how the number of magnet stages relates to the flight distance and velocity of the ball bearings. Catapults are siege engines using an arm to hurl a projectile a great distance.Bottle Rocket Blast Off!: investigate how the air pressure you create in a bottle rocket before launching changes the maximum height it reaches once launched.Bombs Away! A Ping Pong Catapult: experiment with the Ping Pong Catapult to find the right settings to launch a ball into a target.What catapult settings produce the most consistent results? We used science to test how far the catapults flung the items we chose. For this project, we used our engineering skills to actually build the popsicle stick catapults. Bet You Can't Hit Me! The Science of Catapult Statistics: gather data about how far balls travel when launched from a catapult, and then use the data to construct a histogram. A catapult made out of popsicle sticks is the perfect kids’ activity for simple physics.The following Science Buddies projects explore the science of launching and catapulting with trebuchets, rockets, catapults, or similar devices and setups:
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