Teach Engineering
The Magician's Catapult
Class members work in pairs to build a catapult to launch a grape a given distance. The catapult project, a compound machine, reinforces pupils' understanding of simple machines.
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
Designing and Building Catapults
Seventh graders complete a challenge to create a catapult that projects a marble or other projectile at least one meter. While experimenting they apply the Four Question Strategy to answer the question, " How can I make one modification...
Curated OER
Build a Catapult
Studens construct their own catapult. In this history of catapults instructional activity, students work in groups to make their own model of a catapult. Students use physics vocabulary terms explain how the catapult works. Students test...
Curated OER
Catapult Unit
High schoolers understand the need for carefully defining the problem before searching for a solution. They understand the need for carefully defining the problem before searching for a solution. Students compare a variety of catapults...
Curated OER
Levers: Catapults
Students construct a catapult that shoots a cotton ball at least two meters using Legos, rubber bands, and plastic spoons. They discuss how the catapult works, and identify any problems they had with their experiment.
Curated OER
Simple Machines, Odd Machines
Students recognize and identify common objects that can be used as a lever. For this simple machines lesson, students experiment with materials to design and construct a machine that uses a lever. Students also design and build a catapult.
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...
Curated OER
The Catapult
Students identify the advantages and disadvantages of a catapult as a weapon. In this physics lesson, students construct their own catapult. They investigate how changing one variable affects results.
Curated OER
Elastic Forces
Third graders predict and experiment to discover the amount of force exerted by a stretched elastic band. They construct a spreadsheet and make a bar graph showing the results of their experiment.
Curated OER
UFOs
Learners, in groups, construct a catapult. Then they conduct a series of experiments by catapulting a marshmallow, using different lengths of spoons, across the room. They predict, measure, and record the measured distance on a worksheet.
Curated OER
Science: Motion Commotion
Students examine Newton's three laws of motion to discover what causes it and how it changes. They conduct motion experiments by building catapults and constructing balloon rockets. Finally, they conduct peer studies correlating...
Curated OER
Fling It
Students investigate the best design using technology. In this science lesson, students construct a freestanding object with specific materials to be able to shoot a ping pong ball and a marshmallow. They have to adjust and discuss...
Curated OER
Simple Machines, Odd Machine
Students construct a device to 'launch' a marshmallow at the teacher and then discuss various forms of levers. They work in teams to design catapults and identify different kinds of levers.
Cornell University
Alka-Seltzer Rockets
Blast off! An engaging hands-on activity has pupils create rockets powered by Alka-Seltzer. They learn about the physics behind these rockets throughout the process.
Curated OER
Lesson Skill: Determining Audience and Purpose
“. . . the car looked as it had caught some terrible disease.” Pairs read and then illustrate a passage from either “The Year I Drove through the Car Wash” or “Riding Is an Exercise of the Mind” in preparation for a discussion of...
Curated OER
Simple Machines, Odd Machine
Students examine levers and design a machine that uses a lever as a central component. In this lever machine lesson students test various machine designs and evaluate their effectiveness.
Curated OER
Simple Machines, Survivor-Style
Students apply the principles of simple machines to create events in a wacky obstacle course. They work with a partner to prepare a visual presentation and an expository description of the obstacle course. Each group sequentially...