Category Archives: questions & answers

Common questions & answers relating to science fair projects.

Science Fair Questions about Bleach & Molds

Best Ways to Kill Mold

Q: What concentration of bleach is use to kill mold?Amber A: This site is all about teaching you how to find the answers yourself. So lets begin there: In the google search window input the keywords, “concentration of bleach to kill molds” and whala – tons of answers. From my search I found out that […]

How to Get More Voltage from the PicoTurbine Windmill

PicoTurbine Wind Turbine

Question Hi Madeline, My son and I are working on putting together his PicoTurbine Windmill for his 4th grade Science Fair. I am not sure if you are intimately familiar with this project, but I have a question… We have been able to get the expected 1.5-2.0 volts from the turbine by checking the output […]

How to Measure Sugar Concentration in Juice

How to Measure Sugar in Juice

Question: How would I measure sugar concentration in apple juice in different brands of apple juice. Answer: According to the wine doctor.com the refractometer is a device in which the juice from a wine grape is squeezed into and then provides a sugar reading of the juice content. Another method, according to the wine doctor, […]

Can you change the rate of a chemical reaction by changing the particle size of the reactants?

Question: This question came from a 13 yr old student. Answer: The answer to her question is yes.  Many chemical reactions will increase proportionally to the surface area of the particle.   The more surface exposed, the faster the reaction can occur.   An example that comes to mind;   mixing Alka Seltzer with water […]

Question about DNA Extraction Kit

Madeline, I  forgot to ask this question earlier.  My daughter  noticed that the whirl-pak bags did not have T-salt tablets in them.  The identical ones we used last year supplied by the local utility had tablets.  I know it’s for de-chlorination purposes to  preserve bacteria in the water samples. Just need your feedback on this.  Thanks. […]

What is a project with coffee / cacao?

Question: Dear Madeline Some time ago you had something in one of your newletters about a science fair project dealing with chocolate. (coffee, cacao etc.) that one can use. Is it possible to forward the information to me. We would like to do something along that line for our next project. My Child is 12 […]

Laser Science Fair Projects

Question: hi, I need ideas for any science fair project to do with laser’s i’m in grade 8 and i will take any suggestions thanks Answer: The magnetometer uses a diode laser – open-style laser pointer to measure the interplanetary magnetic field. It is a device that you build yourself and has helped many students […]

Are Plastic Bags Harmful to Our Planet?

Question from Sydney:  Dear Super Science fair projects.com, I am a ninth grade girl and I need a science fair project idea. I love the environment, and I wanted to do something to show how plastic bags effect the environment, but I cannot think of any ways to test that. We are using the scientific […]