Berkeley Engineering and Mentors
Marshmallow Catapaults
After a brief lecture on levers, torque, projectiles, and the five-step engineering design cycle, young physical science learners or engineers build catapults out of craft sticks. This is an open-ended exploration of what works and what...
Institute of Electrical and Electronics Engineers
Trebuchet Toss
Young engineers work in teams to design and build their own trebuchets according to certain criteria; they must be able to launch a mini marshmallow accurately into a pie tin. Background reading material, a planning sheet for trebuchet...
Cornell University
Catapults
Ready, aim, fire! Launch to a new level of understanding as scholars build and test their own catapults. Learners explore lever design and how adjusting the fulcrum changes the outcome.
Curated OER
Toying Around with Newton's Laws
Eighth graders identify balanced and unbalanced forces that affect the movement of objects and Newton's three Laws of Motion. Students also design a contraption utilizing Newton's Laws of Motion that will launch a marshmallow five meters.
Curated OER
Motion, Forces, Energy and Electricity
What a wonderful way to explore motion and forces! Learners design a catapult, after watching a video and discussing types of catapults. This is a comprehensive and complete lesson with links to supplementary resources.
Curated OER
Sweet Candy Comets
Fourth graders use candy to make a comet. In this lesson, 4th graders examine the role comets have played throughout history, students watch NASA videos about comets and complete the lesson by making an edible model of a comet. This...