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Showing 1 - 5 of 1,118 Project Ideas
A Battery That Makes Cents
A Battery That Makes Cents
Difficulty
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues

Batteries are expensive, but you can make one for exactly 24 cents! In this experiment, you will make your own voltaic pile using pennies and nickels. How many coins in the pile will make the most electricity? Read more
A Magnifying Discovery
A Magnifying Discovery
Difficulty
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily Available
Cost Very Low (under $20)
Safety No hazards

Have you ever looked through a magnifying lens? Why do things look bigger when you look at them through the magnifying lens? Even though the object appears to get larger, it really stays the same size. Each lens has its own unique power of magnification, which can be measured with a ruler. How powerful is your lens? Read more
A Soluble Separation Solution
A Soluble Separation Solution
Difficulty
Time Required Very Short (≤ 1 day)
Prerequisites none
Material Availability Readily available
Cost Very Low (under $20)
Safety No hazards, but requires adult supervision with oven and boiling water in the tea kettle.

Have you ever mixed together salt and sand? Isn't it fun to see how all of those tiny grains of salt and sand mix together! But what if you had to separate them out again? Do you have nightmares of tiny tweezers, a magnifying glass, and hours spent picking grains of salt and sand apart? Don't be afraid, there is another way! Using the differences in solubility between salt and sand, you can find out the simple "solution" to this problem. Read more
Air Particles and Air Quality
Air Particles and Air Quality
Difficulty
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Use caution and have parents with you at test sites with automobile traffic nearby.

What does the phrase, "Like a breath of fresh air," mean to you? This common phrase can have different meanings: calming, relaxing, invigorating, energizing or CLEAN! After all, you never hear anyone say, "Like a breath of dirty air," do you? Find out how clean the air is in this simple experiment. Read more
Bones and Calcium
Bones and Calcium
Difficulty
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No hazards

Why is your grandmother always wondering if you are drinking enough milk? Our bones are made out of calcium, a mineral found in milk, and drinking milk can lead to strong healthy bones. What about other animals? What are their bones made of? What kind of bones do they have? Are there animals without bones? Are endoskeletons and exoskeletons made out of the same materials? Read more
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