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Play with objects on a teeter totter to learn about balance. Test what you've learned by trying the Balance Challenge game.

Subject:
Physical Science
Physics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Ariel Paul
John Blanco
Kathy Perkins
Michael Dubson
Trish Loeblein
Date Added:
04/24/2012
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Educational Use
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To display the results from the previous activity, each student designs and constructs a mobile that contains a duplicate of his or her original box, the new cube-shaped box of the same volume, the scraps that are left over from the original box, and pertinent calculations of the volumes and surface areas involved. They problem solve and apply their understanding of see-saws and lever systems to create balanced mobiles.

Subject:
Applied Science
Engineering
Geometry
Mathematics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Mary R. Hebrank
Date Added:
10/14/2015
Conditional Remix & Share Permitted
CC BY-SA
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This image shows the relative positions of the fulcrum, load and effort in a first, second and third class lever. First class lever is load, fulcrum, effort. Second class lever is fulcrum, load, effort. Third class lever is fulcrum, effort, load.

Subject:
Life Science
Physical Science
Material Type:
Diagram/Illustration
Date Added:
03/02/2018
Conditional Remix & Share Permitted
CC BY-NC
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In this 7th grade science lesson, students learn about levers and use them to make-work easier.

Material Type:
Activity/Lab
Date Added:
03/16/2020
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Educational Use
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Students explore methods employing simple machines likely used in ancient pyramid building, as well as common modern-day material transportation. They learn about the wheel and axle as a means to transport materials from rock quarry to construction site. They also learn about different types and uses of a lever for purposes of transport. In an open-ended design activity, students choose from everyday materials to engineer a small-scale cart and lever system to convey pyramid-building materials.

Subject:
Applied Science
Architecture and Design
Engineering
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Glen Sirakavit
Jacquelyn F. Sullivan
Lawrence E. Carlson
Luz QuiÃ±Ã³nez
Malinda Schaefer Zarske
Date Added:
09/18/2014
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this activity, learners explore center of gravity, or balance point, of stacked blocks. Simple wooden blocks can be stacked so that the top block extends completely past the end of the bottom block, seemingly in a dramatic defiance of gravity. A mathematical pattern can be noted in the stacking.

Subject:
Geology
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
Exploratorium
Provider Set:
Science Snacks
Date Added:
06/26/2012
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Educational Use
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In this activity, students explore how trebuchets were used during the Middle Ages to launch projectiles over or through castle walls as well as how they are used today in events such as Punkin’ Chunkin’. Students work as teams of engineers and research how to design and build their own trebuchets from scratch while following a select number of constraints. They test their trebuchets, evaluate their results through several quantitative analyses, and present their results and design process to the class.

Subject:
Algebra
Applied Science
Engineering
Mathematics
Measurement and Data
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
Activities
Author:
Kimberly Collins
Date Added:
06/13/2019
Read the Fine Print
Educational Use
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In this open-ended design activity, students use everyday materials milk cartons, water bottles, pencils, straws, candy to build small-scale transportation devices. They incorporate the use two simple machines a wheel and axle, and a lever into their designs. Student pairs choose their materials and engineer solutions suitable to convey pyramid-building materials (small blocks of clay). They race their carts/trucks, measuring distance, time and weight; and then calculate speed.

Subject:
Applied Science
Architecture and Design
Engineering
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Glen Sirakavit
Jacquelyn Sullivan
Lawrence E. Carlson
Luz QuiÃ±Ã³nez
Malinda Schaefer Zarske
Date Added:
10/14/2015