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Eighth Grade, Materials Science Projects, Lessons, Activities (40 results)

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Fishing Line Strength
Science Fair Project Idea
Scientific Method
If you like to fish and you'd rather not be telling the story of "the one that got away," then this is a project for you. What combination of properties makes for the best fishing line? Here are some suggestions for getting started on your background research into fishing line properties: knot strength, abrasion strength, shock strength, tensile strength, limpness, controlled stretch, and desired range of visibility (Dodson, 2006). Choose the properties that you think are most important, and… Read more
He Huffed, and He Puffed, But Didn't Blow the House Down! How Can Straw Make a Sturdy Building?
Science Fair Project Idea
Scientific Method
In the fairy tale of the three little pigs, the wolf huffed and puffed and blew down the first pig's straw house. But in reality, straw, tied into bales, is a viable building material that, when used properly, makes sturdy and energy-efficient buildings. Straw is a renewable resource that is available all over the world since it is the byproduct of growing grain. In this science fair project, you will test a straw bale covered with stucco to see if it's water resistant, and evaluate if it's… Read more
How Things Break
Science Fair Project Idea
Scientific Method
If you're interested in analyzing how things break, check out the Science Buddies project Fractography: The Way Things Break. Read more
Need Help Getting Out of a Sticky Situation?
Science Fair Project Idea
Scientific Method
Does adhesive tape hang tight at different temperatures? Measure the adhesive strength of tape at both low and high temperatures. To raise the temperature, we suggest using a blow dryer at both low and high heat settings. To lower the temperature, use an ice pack (try to keep condensation from forming on the tape and confounding the results). For even lower temperatures you could try "dry ice" (frozen carbon dioxide), if available. (Wear heavy gloves when handling dry ice, because it can… Read more
Purposeful Packaging
Lesson Plan Grade: 6th-8th
Students will play the role of packaging engineers, exploring how to protect shipped items in innovative ways. Students will use data analysis of consumer surveys to inform the iteration of their materials and designs. Learning Objectives Students will: Design a more sustainable way of packing items for shipment. Collect consumer feedback using surveys. Calculate averages, analyze survey data and evaluate the effectiveness of their design. NGSS Alignment The 3 dimensions… Read more
Stressed Out? Take a Break with this Project!
Science Fair Project Idea
Scientific Method
Is an I-beam as strong as a solid beam of the same size? What if you include weight in the comparison: which beam has the greater strength-to-weight ratio? Would an I-beam be stronger than a solid rectangular beam of the same weight? What about other structural shapes (e.g., T-beams, U-beams)? In this project you can find out by setting up a test stand, putting on your safety goggles and measuring how much stress these building components can handle before they snap. Read more
Talk About a Bad Hair Day!
Science Fair Project Idea
Scientific Method
Did you know that you can make a simple hygrometer (a device for measuring the relative humidity of the air) with hair? Search online for instructions to build one. Does the type of hair used in the hygrometer affect the accuracy of the results? Do some types of hair respond faster than others? Do some types of hair give a larger (or smaller) response? You could get hair samples from classmates, or a local beauty shop. Use hair samples of equal length to construct each hygrometer. To force… Read more
The Viscosity of Motor Oil
Science Fair Project Idea
Scientific Method
The insides of a car engine get very hot when the engine is running. Motor oil lubricates the moving parts, to keep the engine operating smoothly. What happens to motor oil as the engine temperature goes up? Read more
Turning Mushrooms into Environmentally Friendly Packaging
Science Fair Project Idea
Scientific Method
Have you ever questioned the packaging of an item in a plastic container, secured in a plastic mold, that also slides into a plastic box, or a small item packed in twenty times its volume of polystyrene noodles to keep it from breaking? In this project, you will explore if mycelium composite material, an eco-friendly material obtained from organic waste and mushroom roots, can serve as a viable eco-friendly packaging alternative. Packaging material made of foams and plastics (Figures 1 and 2)… Read more
Wood Adhesive Durability
Science Fair Project Idea
Scientific Method
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
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