- What is a Simple Machine?
- How does it work?
- I want to be an inventor
- I want to find out about past inventors
- I love to make projects that really work
- I want to make a little car
- I want to read more about inventions
What is a Simple Machine?
A machine is a tool used to make work easier. Simple machines are simple tools used to make work easier. Compound machines have two or more simple machines working together to make work easier. Once you are pretty sure you understand these, take the interactive quiz about simple machines you might find in your daily life.
Simple Machines Learning Site
Understanding Pulleys, Levers, Wedges, Wheels & Axles, Inclined Planes, and Screws.
These devices were all in common use for centuries before Leonardo’s time. Each one makes work easier to do by providing some trade-off between the force applied and the distance over which the force is applied.
How does it work?
Building on Ground Zero
Young children will like Outfitting Firefighters. Historians, the how and why of the collapse of the twin towers, scientists the information about metals. May not be suitable for the sensitive.
Let’s plunge in; flush out the facts and plumb the depths of toilet repairs. Almost everything you ever wanted to know about your toilets!
I want to be an inventor
Be an Inventor, Become an Engineer
I want to be an inventor. How do I get started? I’m just a kid. How do I become an engineer?
I want to find out about inventors of the past
Inventors of the Past
Interact with inventions and inventors of the past who often changed history.
I love to make projects that really work
How To Build A Catapult
This is a great little siege engine that really hurls projectiles! You just need some wood, a few screws, a rubber band and a couple of hours. This little catapult really hurls projectiles.
Brainstorm with others who love to make complicated things with Legos. For advanced Lego lovers.
Here’s a simple lie detector that can be built in a few minutes, but can be incredibly useful when you want to know if someone is really telling you the truth. It is not as sophisticated as the ones the professionals use, but it works. It works by measuring skin resistance, which goes down when you lie.
Making a Chinese compass
How to make a compass if you are lost and have no tools. And how to make a compass with some household stuff.
Make a Light Bulb
How long can you make your iron filament glow? Thomas Edison tried hundreds of times to make filaments that would glow and not burn up. He used many different materials, from cardboard to bamboo. Edison was persistent–he never gave up trying until his project worked!
Free plans for building a hovercraft powered by a leaf-blower. Build in less than a day for $50, not counting the leaf blower. Return the leaf blower to its normal job later on.
Oatmeal Crystal Set Project
Complete plans for building a basic AM broadcast crystal set. These plans are excerpted from The Crystal Set Handbook, by Philip N. Anderson.
Here’s how to make a simple camera from an empty Pringles can.
Make toys at home with common household materials, often in only a few minutes, that demonstrate fascinating scientific principles.
Steam Engine Plans
The can will start turning slowly at first but in seconds it will be at hundreds of rpms. It will wobble a little even if you got every thing balanced but if not watch out!
Make your own windmills to decorate the top of a pencil or just for fun.
I want to make a little car
Plans for Making a Toy Car for Kids
I need free plans for a toy car. Kids can build these toy cars with just a little help from a grown-up. Pinewood Derby. Mousetrap Car. Clothespin Cars.
I want to read more about inventions
See also: Science Supplies to purchase special parts for some projects.
See also: Homemade Instruments to get plans for making your own music.