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Science Fair Project Idea
thumbnail Have you ever wondered why some things disappear when they are put in water but other things do not? For example, you may have seen that salt disappears, or dissolves, when it is mixed in a glass of water. But when you throw a rock in a stream it will not usually dissolve, and instead it will just sink to the bottom. And then there are some things that do not act like the salt or the rock. These are called colloids. If you have made Oobleck out of cornstarch and water, then you have seen… Read more
MatlSci_p014
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
A solution consists of a solute dissolved in a solvent. A solution is saturated when no additional solute will dissolve in it. Can a saturated solution of sodium chloride dissolve any Epsom salts? Can a saturated solution of Epsom salts dissolve any sodium chloride? How does solubility vary with temperature? How does solubility vary with the surface area of the solute? Design experiments to find out! (Gardner, 1999, 16-17, Stretton, 2004) Read more
Chem_p038
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Time Required Average (6-10 days)
Science Fair Project Idea
A solution consists of a solute dissolved in a solvent. A solution is saturated when no additional solute will dissolve in it. You'll need a gram balance, a 100 ml graduated cylinder, three beakers or glass jars, three saucers, water, 50 g non-iodized salt (NaCl), 50 g Epsom salts (MgSO4) and 250 g sugar (sucrose). Method 1: Measure 100 ml water and pour into an empty beaker or jar. Weigh out the suggested amount of the solute to be tested. Add a small amount of… Read more
Chem_p037
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Time Required Average (6-10 days)
Science Fair Project Idea
You can measure the viscosity of a fluid using a glass tube and a marble with slightly smaller diameter than the tube. Seal one end of the tube. Fill the tube with the fluid to be tested. Drop the marble into to the tube and measure the time it takes to fall a fixed distance. Repeat the measurement several times, and use the average value. How does viscosity change with the amount of sugar dissolved in water? How does viscosity change with temperature? Read more
Aero_p032
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Time Required Short (2-5 days)
Science Fair Project Idea
If you stare at a waterfall, or look at passing scenery from the window of a moving train, you will have a strange sensation when you turn your gaze to something stationary. You can investigate these types of motion after-effects with simple equipment described by the . How long does it take to induce the effect? How long does the effect last? Can the after-effect be canceled by viewing motion in the opposite direction? (Staff, date unknown) Read more
HumBeh_p030
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Time Required Average (6-10 days)
Science Fair Project Idea
You probably know that you can use iron filings to reveal the magnetic field produced by a strong magnet. If you sandwich the iron filings between pieces of waxed paper, you can make a permanent record of your magnetic experiments (Gardner, 2004, 66). Cover the wax paper sandwich with a layer of brown paper (from a roll, or cut open a paper shopping bag), and then (with an adult's help) use a hot, dry iron to seal the waxed paper together. You will have to experiment a little with your iron… Read more
Elec_p043
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Time Required Short (2-5 days)
Science Fair Project Idea
Yeast contains an enzyme, called catalase, that acts as a catalyst for the reaction that breaks down hydrogen peroxide into oxygen and water (2H2O22H2O + O2). Safety note: oxygen is a highly reactive gas, adult supervision recommended for this project. For your background research, be sure that you understand substrate, catalyst, reaction rate, catalase, enzyme saturation and protein denaturation. Use a solution of 3% H2O2 for the substrate. Construct an apparatus that allows you to collect… Read more
Chem_p040
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Time Required Average (6-10 days)
Safety Adult supervision is recommended for this project.
Science Fair Project Idea
This project can apply to soccer, hockey, baseball and many other sports. What is the effect of stopping the kick/shot/swing at the moment of impact vs. following through? Think of a way to measure the outcome in each case, and explain your results. (idea from Gardner, 2000, 83-85; for more information with regard to specific sports, see: Barr, 1990, 12-14; Gay, 2004, 142-144; Adair, 2002, 30.) Read more
Sports_p034
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Time Required Very Short (≤ 1 day)
Science Fair Project Idea
If you're interested in analyzing how things break, check out the Science Buddies project . Read more
MatlSci_p032
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Time Required Short (2-5 days)
Science Fair Project Idea
Want to send coded messages to your friends? Can you write a simple letter-substitution encryption program in JavaScript? How easy is it to break the simple code? Can you write a second program that "cracks" the letter-substitution code? Investigate other encryption schemes. What types of encryption are least vulnerable to attack? Read more
CompSci_p031
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Time Required Long (2-4 weeks)
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