ncooley05
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Joined: Thu Mar 24, 2016 5:43 pm
Occupation: Parent

Radiant Rashes Variable Question

Postby ncooley05 » Thu Mar 24, 2016 5:56 pm

Link to project below

Should the time each group of seeds microwaves or bakes be the same? (1 minute, 2 minutes, 3 minutes and 5 minutes)

Instructions say to microwave in seconds and to bake for minutes at a time.

This is for my 5th graders school science fair. She was instructed to only have one variable that changes. I understand that to be the amount of time heated in this experiment. (We plan to use 4 different types of seeds.) TIA

http://www.sciencebuddies.org/science-f ... #materials

donnahardy2
Expert
Posts: 2671
Joined: Mon Nov 14, 2005 12:45 pm

Re: Radiant Rashes Variable Question

Postby donnahardy2 » Sun Mar 27, 2016 8:24 am

Welcome to Science Buddies.

Thanks for posting your project. In this experiment the time that the radish seeds are exposed to heat, either seconds in the microwave, or minutes in the oven, is the independent variable. The time that it takes for the radish seeds to sprout is the dependent variable.

Otherwise, all other conditions are the same including the temperature, light, amount of water, type of paper towel, plastic bag, and the batch of radish seeds.

I hope this helps. Please do let us know if you have any other questions.

Donna Hardy


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