This is one of a set of resources designed to allow learners to use Easter themes to develop their knowledge and skills in Design & Technology, Mathematics and Science. This lesson plan is perfect for KS3 students and can be used as a fun one-off main activity to introduce levers.Īctivity: Build a popsicle stick catapult With the right materials, you can build a simple yet effective homemade catapult capable of launching chocolate eggs up into the air! This is an exciting and engaging way to learn about physics and engineering.
#HOMEMADE CATAPULT FREE#
Museum staff, volunteers, and interns are encouraged to blog about their unique experiences and knowledge gained from working at the museum.Develop an understanding of levers and build a popsicle stick catapult from craft sticks with this free STEM lesson plan. Jane Thaler is a Gallery Experience Presenter in CMNH’s Life Long Learning Department. Try changing up the how far you push the cup down before launching.ĭoes your ball fly higher or lower when you push down a lot compared with when you push down a little? Does it land farther or nearer? Did the flight path change? What else do you observe? Push the cup down a little bit and let go.Put your catapult on a flat area in an open space and place a cotton ball in the cup on the launching stick.Attach the launching stick to the bottom stick using a rubber band. Attach your launching stick (bucket side up) on the other side of the stack, also perpendicular so that is lines up with the bottom stick.Secure this cross shape with rubber bands wrapped in an X around the center. Place a single craft stick on the bottom of the main stack at a perpendicular angle.Wrap both ends of the stack with rubber bands to secure them together. Glue plastic bottle cap on the end of a craft stick facing up like a cup.It is much easier to do this before you begin assembling your catapult. (Optional) Decorate the craft sticks and bottle cap to your liking and wait till dry.Paint, markers, or other decorations – This is entirely optional Directions.A cotton ball or small ball of crumpled paper.Plastic bottle cap – Or some other small, lightweight bucket.What You’ll Need to Make Your Own Catapult Let’s see how they work by building our own catapult! In this activity you will being using elastic potential energy stored in the tension of a wooden craft stick. This energy of motion creates enough lift to get an object in the air while the force and angle of release provide the thrust necessary to cover long distances. Essentially, energy stored as tension or torsion is converted during the release and transferred to the launched object. Catapults work through a sudden release, or conversion, of stored potential energy to propel objects through the air. Navy ships as early as 1915, but their history as a tool for launching objects into the air for a distance began in 400 BC as weapons in siege warfare. Spring loaded catapults were used to launch aircraft beginning in 1903 and catapults were used on U.S. Aircraft carriers use steam-powered catapults to shortcut the force-based issues of flight takeoff. What you need, and what engineers have built, is a machine that can get those planes from 0 to 170 miles in less than 2 seconds. Say you are trying to takeoff from an aircraft carrier in the sea for example that only has 300 feet of runway instead of the 2,300 feet needed for your average aircraft to takeoff. This can be fairly inconvenient when you don’t have a lot of time or space. Not all flying machines can do this, however, and most require some sort runway to gain enough speed for taking off amongst all these flying forces. This allows them to conveniently take off for flight by moving straight up into the air.
Birds do this through a twisting of their wings and helicopters accomplish the same idea through a single rotor. Birds and helicopters have mechanisms that produce lift and thrust simultaneously.
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