This is a classroom activity in which students observe and describe cells in stages of division. They share observations about what they see in the cells, then formulate questions and do research concerning the changes that take place in cells during the process.

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.

Students will use science skills of observing, describing and measuring in the context of Making Ice Cream. Students will understand the concept that physical properties can change.

This lab crushes an aluminum can to investigate states of matter and air pressure.

Data modeling activity using oil reserve and consumption data. Students predict when oil reserves meet or exceed reserves.

This is an art project where oil paints and water is used. Students will have already explored the densities of oil and water.

This activity is designed to help deepen our language and understanding of taking observations. We will also learn that water molecules are in constant motion.

Students will investigate what constitutes a solid and a liquid state of matter. Using the probe, students' misconceptions on states of matter will be exposed. The lab, which uses a cornstarch, water and food coloring mixture, will be explored. The students will determine how that exploration will take place and devise a procedure to determine the state of matter. Students will then, as a group, present their findings to the class. After all the groups have presented their findings, the groups with the same findings will combine and defend their findings to the other group(s) until the class, as a whole, has reached a consensus.

This example is an in-class market simulation conducted with paper cards assigning each student a buyer or seller role and a reservation price. This example is appropriate for both upper and lower division courses. Open Outcry Market was developed by Barry P. Keating at the University of Notre Dame.

A public interest group claims that pharmaceutical companies overstate the costs of developing drugs because they include the foregone earnings from the money invested in drug development. The story can be used to discuss the concepts of opportunity cost and normal profit.

In this biology activity, students will first brainstorm how humans use their hands. They will then conduct a short experiment to determine the importance of the opposable thumb to humans and how it is an important adaptation.

This is a computer and outdoor lab based activity in which students design two bottle rockets that are designed to reach maximum height. Students will calculate maximum height and terminal velocity for each rocket launched.

This activity involves using orienteering to gain understanding of vector addition and finding the resultant vector.

This is a lab activity where the students are using the scientific method to observe the process of osmosis. The students will be writing a formal report with their results.

This activity is a field investigation where students venture out into their own backyard to observe and record data on living things and see how these things change throughout the seasons.

This activity is a field investigation where students will make observations on a chosen location every two weeks for the period of one school year. They will record their observations using a digital camera and a nature journal.

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.

This activity is a field investigation where students reconstruct parts of Winona's Paleozoic environment through observations of a local outcrop and the application of basic geologic principles.

In this field exploration, student teams (consisting of 3 students) will investigate whetherincandescent, fluorescent or a no light situation will attract the most nocturnal insects.