Ecosystem Study part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Students will explore and create a healthy ecosystem, once established they will then introduce additional variables which may harm the ecosystem and determine which hazards should be avoided.

Watershed: Exploring Run-Off and Infiltration in the Classroom part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is a classroom based inquiry activity where students will observe how water changes when it is moved through a variety of different mediums. Eventually, the students will take this model to the larger ideas of watershed in the community.

Where shall we go swimming? part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is a water study investigation showing how biotic and abiotic factors are influenced by human activity.

Acid-Base Titration of an Eggshell part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is acid-base titration lab where students determine the percent of calcium carbonate in an eggshell.

Duckweed Bioassay part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is a bioassay lab where students tested the effect of an environmental toxin (fertilizer) on the growth rate of Duckweed.

Investigating Soil Composition - Soil Soaks Up Water part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is a classroom quick lab where students explore sand, soil, and water in relation to absorption and permeability.

Our Friend the Worm! - Introducing Worm Composting into the Classroom part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is an introduction to setting up a composting worm bin in the classroom. It is part of a yearlong study on the interaction and influences that living system have on each other.

Density Differences part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
In this lab activity, students determine density differences of water samples with varying temperature and salinity levels. Students synthesize information to predict the effects of oil in given water samples.

Investigating Soils part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This guided inquiry is a laboratory investigation on soil textures where students gather and analyze data, compare findings and develop new experimental questions.

The Effect of Acid Rain on Seed Growth part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is an in class lab where students will compare different acid solutions on seed germination and growth.