Ready-to-Go Research Projects for the 3rd Grade Science TEKS! With this resource, you'll find 40 engaging, creative and fun enrichment research projects aligned to the Texas 3rd Grade Science Texas TEKS. The projects allow students to think outside of the box when they research topics for specific answers. From researching why unique devices will float and others will not, how soil is formed from weathering rocks, the workings of sound energy or researching a food chain in the desert ecosystem