Name unknown

Water Quality part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This is a field investigation in which students test water quality in 2-3 areas using their own testable question.

First Class Levers part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is an investigative introduction to class 1 levers. Students create levers and record observations to determine the use and components of a lever.