Category Archives: questions & answers

Common questions & answers relating to science fair projects.

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, 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 […]

Is it Liquificaton or Liquefaction?

dear madeline,  thank you madeline. i think i will enter the science fair contest. i was wondering if you could help me about something. What do you know about liquification? i would really appreciate me if you could help me figure out what it is. thank you.. sincerely,  jennifer Answer: Jennifer the best that I could do is […]