Science Buddies: "Ask an Expert"

I found the experiment "Calculating the Circumference of the Earth" on the Science Buddies website and wanted to know if this was eligible to be a science fair project. What are the independent and dependent variables here? Control? Do you need these things in a science fair project? I am very interested in this topic but I don't know how it can translate properly for the science fair. I know that for some engineering projects, there are different layouts you can use. Does that apply to mathematics projects too? Thanks.

Hello Oliviawho,

This is a very interesting project. To get started answering your questions, you could look at this link to the Science Buddies Science Fair Project Guide:

https://www.sciencebuddies.org/science- ... evariables

Hope this helps! Let us know if you have more questions.

Madeline B

Making Your Estimate of the Circumference of the Earth. You can use Eratosthenes' method to calculate the circumference of the earth yourself. You can even make the calculation when the sun casts a shadow at noon in both places.