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Others Like “Strength of Glues”

Project Idea
thumbnail Sorry, you don't get to use a jackhammer for this project, but you'll find out another way to break concrete (not to mention what makes it strongest). Read more
CE_p010
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- Less Details
Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision recommended
Project Idea
thumbnail If you love to hit the half pipe with your snowboard or skateboard, then you have tested the strength and durability of laminates. Laminates are sandwiches of different materials that are glued together in layers to give strength and flexibility to an object. In this experiment, you can test if laminating wood can make it stronger and able to support a heavier load. How much weight can it take before it breaks? Read more
MatlSci_p008
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Requires adult supervision with glue and cutting wood.
Project Idea
thumbnail Build model bridges and then deliberately destroy them? Who'd be crazy enough to try that? Read more
CE_p011
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Most items can be obtained locally but may require visiting multiple stores.
Cost Average ($50 - $100)
Safety No issues
Project Idea
thumbnail A bridge collapse, like that of the I-35W Mississippi River Bridge shown below, can be a major disaster. Bridges that cannot hold enough weight to do their intended job can be a serious public safety issue. And if they collapse, they can also cause economic damage due to costly rebuilding and people and companies scrambling to figure out how to circumvent the months of traffic impacts. #* IMG 1 *# Figure 1. On August 1, 2007 the I-35W Mississippi River Bridge collapsed killing 13… Read more
CE_p024
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability A kit for this project is available from [# Link Name="CE_p011.6" Value="HtmlAnchor" HtmlText="AquaPhoenix Education" #].
Cost Average ($50 - $100)
Safety No issues
Project Idea
Ever try to tear a telephone book in half? Even though you can easily rip one or a few pages to shreds, the entire phone book has strength in numbers and holds together. This project is an introduction to measuring and comparing the strength of materials. Does spaghetti get extra strength if you bundle it together, or does strength simply increase proportionally with the number of strands? If you're interested in materials testing, get cracking! Read more
MatlSci_p010
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Project Idea
The different species of wood used in construction offer a variety of challenges based on density, porosity, oils in the wood, flexibility, elasticity, etc. The intended use, e.g., structural or cosmetic, presents different challenges as well. The glue must be compatible with the wood, the use, and the climate, so many experiments are possible. For example, you could design an experiment to test the durability of different adhesives using the same wood. Or, you could try different wood… Read more
MatlSci_p027
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Time Required Very Long (1+ months)
Project Idea
If you like playing electric guitar, this could be a cool project for you. Have you ever wondered how an electric guitar works? In this project you'll wind one or more of your own electric guitar pickups and test them out in an inexpensive electric guitar. How will the sound change with the number of turns you use in the coil? Or with the strength of the magnets you use? Read more
Music_p004
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- Less Details
Time Required Average (6-10 days)
Prerequisites To do this project, you'll need an inexpensive electric guitar in which to install and test the pickup(s) you make. You'll also need a guitar amplifier.
Material Availability Readily available
Cost Very High (over $150)
Safety Adult supervision required when potting (melted wax-coating) the pickup
Project Idea
thumbnail Today magnetic recording is used in audio and video cassette recorders, and computer disk drives. Did you know that you can also use an electromagnet to record and play back from a steel wire? In fact, this is how magnetic recording got started. This project shows you how to build a simple wire recorder. Read more
Elec_p015
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Eye protection required during construction
Project Idea
thumbnail Water is an interesting thing. We drink it, swim in it, and wash ourselves with it. We can get energy from water by damming it and sending it through a turbine. But did you know that we can use the natural electrical charges present in water and a Kelvin electrostatic generator to create sparks? You can even use a Kelvin electrostatic generator to temporarily light a bulb! Now that is one bright idea! Read more
Elec_p069
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to visit your local hardware store to purchase plumbing items to build the Kelvin electrostatic generator. You will also need a hand saw, a drill, a heat gun, a digital scale, a fan, and a dehumidifier. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Parts of the Kelvin electrostatic generator require use of a hand saw and a drill. Wear safety goggles when using power tools. Adult supervision is required.
Project Idea
thumbnail Here is a project that is almost like a magic trick: with a strong magnet and a simple apparatus you can build yourself, you can make a coin "walk" up and down a wire coat hanger! This project is an interesting way to learn about the distance over which magnetic forces act on magnetic materials. Read more
Phys_p024
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items
Cost Low ($20 - $50)
Safety Use strong magnets with care! See safety notes below.
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