what are some good 12th grade science fair projects that have something to measure and 3 variables to test?

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Chicken pox and hepatitis are bacterial diseases. true or false?

What is the approximate time of death of the body temperature is 29.4 degrees celsius