SSAC Physical Volcanology module. Students use Excel to determine a log-log relationship for flow length vs effusion rate and compare it with a theoretical expression for the maximum flow length.

SSAC Physical Volcanology module. Students build a spreadsheet to estimate the volume of volcanic deposits using map, thickness and high-water mark data from the 2005 Panabaj debris flow (Guatemala).

SSAC Physical Volcanology module. Students build a spreadsheet to calculate the volume a tephra deposit using an exponential-thinning model.

Students calculate the opportunity cost of attending one class. The exercise reinforces learning about implicit, explicit and total opportunity costs.

This activity is an inquiry approach to teaching what force is. Students will learn what push, pull, gravity, and friction are.

This activity is a field investigation where students design an experiment to determine the coefficient of friction for two contacting surfaces.

This activity is a daily lab where two students read a thermometer and identify the cloud type for a week. They record it on the board first and we all record it in our journals. A graph of the entire year is also completed and we can analyze the data as we go. We get two new "scientists" each week and we do it all year. I start the first week of school.

After predicting which of two earnings streams has the highest currrent value, students use a discounted values table to compare the two earnings streams, discovering that earlier earnings has higher value and that the choice of earnings streams depends on the interest rate chosen.

This exercise uses the Think-Pair-Share technique to initiate the problem-solving process. It focuses on a common first step in economic problem solving: identifying relevant and irrelevant information.

This activity is a water study investigation showing how biotic and abiotic factors are influenced by human activity.

Two formulas and a scenario for students to apply two retail gravitation models used to predict where shoppers will choose to shop.

This is a short lesson (including hands on activities) on polymers and plastics to expand our study of physical/chemical properties and changes.

This short demonstration will open students' eyes to the distribution of various water sources on our Earth, but also the limited amount of fresh water for our daily use.

Students learn about endangered species and actions humans have taken to address the issue of endangered species. The Xpeditions lesson has students think about their experiences with zoos, learn about the reasons for captive breeding, and come up with an opinion about the role of zoos and aquariums in addressing this issue. The additional activity in the Teaching Materials section has students learn about a controversy within the scientific community regarding the captive breeding of tigers. Students will read articles written by the scientists, develop an opinion, discuss the issue with their classmates, and draw a conclusion based upon additional information they have researched.

Students compare budget deficits and surpluses generated between 1969 and 2008 measured in nominal terms and then as a percentage of GDP.

In this activity, students use questioning skills to ascertain which pond plant or animal they are. In previous lessons, students have visited the neighborhood pond, made observations, and become familiar with pond life.

Students carry out a field experiment in order to test the hypothesis that able bodied individuals receive less help than those perceived to have an injury. Students collect and analyze data and write an APA style research report.

This activity is a field investigation where students collect bugs using homemade pit traps, sort them into groups, and then graph their results.