| science fair project ideas 1 day ago by admin 3rd grade science fair project ideas (Will choose best answer)? Sep 2, 2008 We have two children in the 3rd grade. Both are required to do a science fair project. We need some simple, cheap ideas for experiments that are age appropriate. Thanks in advance. I will choose a best answer. … http://scien ... 爱-小说 - 2-xiaoshuo.com · 1 reference |