Generate and compare multiple solutions to a problem based on how well they meet the criteria and constraints of the design problem. Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints of the problem. People's needs and wants change over time, as do their demands for new and improved technologies. Different proposals for solutions can be compared on the basis of how well each one meets the specified criteria for success or how well each takes the constraints into account. The success of a designed solution is determined by considering the desired features of a solution (criteria). Possible solutions to a problem are limited by available materials and resources (constraints). This activity focuses on the following Three Dimensional Learning aspects of NGSS:ĭefine a simple design problem that can be solved through the development of an object, tool, process, or system and includes several criteria for success and constraints on materials, time, or cost.Īlignment agreement: Thanks for your feedback! Combining kinetic energy with a simple machine makes a task like hurling a piece of candy very exciting! Looking for more STEM activities?īe the first to know about new National Inventors Hall of Fame® STEM activities by following the Camp Invention Facebook page.Define a simple design problem reflecting a need or a want that includes specified criteria for success and constraints on materials, time, or cost.Ĭlick to view other curriculum aligned to this Performance Expectation This stored potential energy transfers to kinetic energy as the candy is launched. Catapults use stored potential energy to eject the candy corn across the room.
There are four parts to a lever: a rigid bar (arm), pivot point (fulcrum), the object being moved (load force) and the force applied to move the load (effort force).
The purpose of a lever is to make a load (in this case, candy corn) easier to move. Why does a catapult fling candy so far? Catapults use a simple machine: the lever. or allow students to use existing art supplies and items from the recycling bin to complete the challenge
Look for items you can upcycle to build a catapult! Simple machines are everywhere. Clothespins, spoons and scrap wood work great, but don’t stop there. With a parent’s permission, search the basement, recycle bin, junk drawer and garage for items you can use to construct your catapult. Swap game night with invention night and kick it off with this fun idea! Tell your family that today’s challenge will be to catapult candy 10 feet.