Curated OER
Wikipedia: Lever
Wikipedia offers excellent information on levers, including a hyperlinked table of contents, images, and examples.
Curated OER
Wikipedia: Lever
Wikipedia offers excellent information on levers, including a hyperlinked table of contents, images, and examples.
Curated OER
Wikipedia: Lever
Wikipedia offers excellent information on levers, including a hyperlinked table of contents, images, and examples.
Curated OER
Wikipedia: Lever
Wikipedia offers excellent information on levers, including a hyperlinked table of contents, images, and examples.
Science Buddies
Science Buddies: Effect of Trebuchet Arm Length or Counterweight Mass on Project
A trebuchet is a catapult that uses a counterweight to supply the energy for throwing. They were used in the Middle Ages for attacking castle walls. In this project, you build your own model trebuchet and investigate how design changes...
TeachEngineering
Teach Engineering: Let's Move It!
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...
Science Education Resource Center at Carleton College
Serc: Catapults: Controlled Investigations
For this structured inquiry, young scholars will investigate a catapult system. Having previously explored and identified the variables of the catapult system (length of lever, mass of shot, angle of catapult), students will conduct...
TeachEngineering
Teach Engineering: Wheeling It In!
In an open-ended design activity, students use everyday materials (milk cartons, water bottles, pencils, straws, candy) to build a small-scale transportation device. They incorporate the use of a wheel and axle, and lever into their...
TeachEngineering
Teach Engineering: Engineering: Simple Machines
Simple machines are devices with few or no moving parts that make work easier. Students are introduced to the six types of simple machines - the wedge, wheel and axle, lever, inclined plane, screw, and pulley - in the context of the...
TeachEngineering
Teach Engineering: Simple Machines and Modern Day Engineering Analogies
Students apply the mechanical advantages and problem-solving capabilities of six types of simple machines (wedge, wheel and axle, lever, inclined plane, screw, pulley) as they discuss modern structures in the spirit of the engineers and...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Simple Machines (Grades 1 To12)
In this lesson plan students start by trying to open a paint can with their bare hands. Eventually, they will use a lever to open it. Various activities are used to enforce different simple machines.
Khan Academy
Khan Academy: Simple Machines and How to Use This Tutorial
There are six simple machines. They are as follows: lever, wheel, pulley, incline plane, wedge, and screw. This tutorial will cover the first three.
PBS
Pbs Teachers: Secrets of Lost Empires I Obelisk
Investigate how levers can be used to lift objects and discover how the position of the fulcrum affects the force and the distance of the load lifted.
Ducksters
Ducksters: Physics for Kids: Simple Machines
Kids learn about the science behind simple machines such as levers, wheels, pulleys, inclined planes, and screws. How they work together to make complex machinery.
Science Struck
Science Struck: Could Archimedes Have Lifted the Earth?
Read the story behind Archimedes' claim that he could lift the Earth with a lever. The author analyzes this hypothetical claim to show that it would never be possible to lift something as massive as the Earth.
PBS
Pbs Learning Media: Cyberchase: Force Field Combinations
In this Cyberchase video segment, the CyberSquad finds the right combination of switch, lever and button that will deactivate the force field protecting the stolen Black Crystal. [3:21]
Other
D&t Online: Linkages
This site describes different types of linkages and how they are used in simple machines.
Other
University of Delaware: Virtual Compound Microscope
This virtual microscope is ideal for learning how to properly use a microscope. Users can turn knobs and dials, throw switches, move levers, change lenses, select a specimen, and adjust oculars. Watch the seven minute video for an...
TeachEngineering
Teach Engineering: Splash, Pop, Fizz: Rube Goldberg Machines
Refreshed with an understanding of the six simple machines; screw, wedge, pully, incline plane, wheel and axle, and lever, student groups receive materials and an allotted amount of time to act as mechanical engineers to design and...
Council of Foreign Relations
Council on Foreign Relations: How to Handle North Korea
A review of the sinking of a South Korean ship by North Korea, & the actions of retribution taken so far. The final discussion revolves around the critical importance that China plays in this, and the influence it can lever either...
Other
Ontario Council for Technology Education: Designing and Testing a Crane [Pdf]
By the end of this project, students will be familiar with the 6 different simple machines and will be able to identify how these machines are used in products and tools they use on a daily basis. They will investigate how mechanical...
US National Archives
Nara: Teaching With Documents: Sow the Seeds of Victory!
A very interesting look at the efforts made by the Wilson administration and the American public in feeding its citizens during World War I. Find out about the extraordinary legal actions taken by the federal government to assure a...
SEDL
Southwest Educational Development Laboratory: Simple Machines [Pdf]
This large PDF file contains seven lessons on simple machines. Includes illustrations. Requires Adobe Reader.
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