The Franklin Institute
Franklin Institute Online: Simple Machines
Information on all six simple machines, nicely presented with extra information available for all. Other sources available. Do "Try This Demonstration."
Other
University of Arkansas: Simple Machines
A thorough discussion of all the simple machines, beginning with some thoughts on mechanical advantage and conservation of energy. Very complete. Move down to the section that interests you.
Scholastic
Scholastic: Study Jams! Science: Force and Motion: Simple Machines
A slideshow and a short quiz on simple machines and how they reduce the amount of work or effort needed to complete a task.
University of Houston
University of Houston: Science Lessons: Simple Machines Learning Site
Provides definitions of all 6 simple machines with examples and student drawing of them. Interactive "simple machines quiz" at the end.
Read Works
Read Works: Machines Can Move
[Free Registration/Login Required] An informational text about simple machines people use every day. A question sheet is available to help students build skills in reading comprehension.
Utah Education Network
Uen: Force, Energy, and Motion: Complex Machines for Simple Tasks!
Designed for Grade Eight, this collection of lessons provides information, examples and quizzes related to simple machines. Elementary students studying this topic will find this site informative as well.
Soft Schools
Soft Schools: Physics Quizzes: Simple Machines
Assess your understanding of the six simple machines with this interactive multiple choice quiz. Immediate feedback is available.
Walter Fendt
Walter Fendt: Apps Zur Physik
This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...
Alabama Learning Exchange
Alex: Simple Machines
During this lesson, students learn about the six types of simple machines. They define each type of machine, experiment with each type, utilize the Internet to explore each type of machine and build their own simple machine. This lesson...
Other
Uss Constitution Museum: Constructing a Warship
USS Constitution was built as a fighting machine and utilized the six simple machines of science to accomplish the many tasks required of her. Students will identify and manipulate these machines to create inventions that would have made...
Sophia Learning
Sophia: Simple Machines: Lesson 2
This lesson will introduce the six types of simple machines and show how machines can increase efficiency by reducing work input needed. It is 2 of 2 in the series titled "Simple Machines."
Sophia Learning
Sophia: Simple Machines: Lesson 1
This lesson will introduce the six types of simple machines and show how machines can increase efficiency by reducing work input needed. It is 1 of 2 in the series titled "Simple Machines."
ClassFlow
Class Flow: Simple Machines Quiz
[Free Registration/Login Required] This flipchart consists of a humorous quiz on identifying simple machines and forces of motion such as gravity and inertia.
Science Struck
Science Struck: Simple Machines for Kids
Gives short descriptions of the six types of simple machines.
NASA
Nasa: Simple Machines
A lesson plan site that contains activities designed to give grades 3 and 4 experiences in using simple machines.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Simple Machines
Good combination of teacher demonstration and student interaction for this simple machine lesson. Great for talking about force and work. Plans are for grades 2-4, yet are adaptable.
NASA
Nasa: Simple Machine Resource Chart
This site provides a chart that lists the six simple machines, defines them, explains how it helps and gives examples.