Sink or Float? Inquiry Investigation part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Anne Gardner, Bruce F. Vento Elementary, St. Paul, MN based on an activity from Science NetLinks
Students explore and experiment with various objects to find which materials will float or sink. They record predictions and results, and generate ideas about the properties of materials that float or sink.

Density Of A Penny part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Robert Ward Eveleth Gilbert Junior High Gilbert MN Based on an Activity by Sue Hendrickson
A lab where the students study the density of pennies. They will discover the limitations of measurements and the value of multiple trials.

Investigating Characteristics of Enzymes and the Factors that Affect Their Function. part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Jen Vance
This classroom lab allows students to develop skills of the scientific method while exploring the characteristics of enzymes.

Exploring Effects of Oil Spills on Birds part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
April Rosendale, Hilltop Elementary, Henderson, MN
This activity allows children to explore the effects of oil spills on birds.

The Science of Puddles part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Debra Hornfeldt, Como Park Elementary, St Paul MN Based on original activities from The Wonders of Wetlands pages 152-156 and Aquatic Project Wild pages 21-26.
This activity is a field investigation of puddles where students gather data and record their findings.