Sally and juan’s science teacher has challenged her students to build a paper airplane that would stay airborne for ninety seconds. the students have two days to design and test their planes. the assignment will end with a "fly-off." the teacher has given the students the problem. what is the next step in the technological design process?

Ineed a good science fair name i’m doing a homemade water filter and i have no idea what the title should be plz

To hide gridline when you display or print a worksheet

What is the primary difference between the header section of a document and the body? a. the body is displayed on the webpage and the header is not. b. the header is displayed on the webpage and the body is not. c. the tag for the body is self-closing, but the tags for the headers must be closed. d. the tag for the header is self closing, but the tag for the body must be closed.