Mystery Material: Is it a solid or a liquid? part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is an investigation of a "mystery material" where students have to determine whether the substance is a solid or a liquid. This activity can be done as part of an earth science or chemistry lesson.

Observing,Comparing and Classifying Rocks part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activitiy is a lab experience where students observe, compare and classify rocks. Close examination of a variety of rocks reveals their differences and can also spark questions regarding their origins.