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Pingry School
An Introduction to Qualitative Analysis
Compounds take on different properties than their elemental components. How can scientists determine those elements? A lab-based activity has learners explore several double replacement reactions to analyze compounds qualitatively. They...
Cornell University
Hydrophobic Surfaces—Deposition and Analysis
Couches, carpets, and even computer keyboards now advertise they are spill-resistant, but what does that mean? Scholars use physical and chemical methods to coat surfaces with thin films to test their hydrophobic properties. Then they...
Curated OER
Understanding the 1855 Census Database
Use data from the 1855 New York census to better understand the Irish immigrant experience during the late 19th century. Young historians analyze information from the census and build three hypotheses regarding the residents of the Five...
Curated OER
That's Predictable - Stream Side Science
Research the impact that changes in biotic or abiotic factors might have on an ecosystem. Debate for or against the changes and take action in the community. This resource ideally follows stream studies that young ecologists may have...
Virginia Department of Education
Mystery Anions
Lost an electron? You should keep an ion them. Young chemists learn qualitative analysis in the second lesson of an 11-part chemistry series. After observing reactions of simple salts, the teacher provides pupils with unknown...
Kenan Fellows
Absorbance Curves: Using Spectrophotometers to Quantize the Effects of a Strong Acid on a Buffer
The Henderson-Hasselbalch equation combined logarithmic terms with the application of carbonic acid as a buffer solution. Scholars learn investigate equation and its applications through hands-on experiments. They collect data and...
Curated OER
Re-Presenting Race in the Digital Age
Teen-aged scientists analyze a graphic organizer of how trash is removed from New York City and then answer standard questions about a graph and a diagram. Resources are mentioned, but there are no links to these resources, so you will...
Santa Ana Unified School District
Getting to the Core: Globalization
How have advances in technology and communication changed our world? That is the questions that world history students contemplate as they examine a series of primary and secondary source materials
Santa Monica College
The Composition of Potassium Chlorate
The third instructional activity in a series of 11 begins by using thermal decomposition of potassium chlorate to determine the mass percent of oxygen. Then a second activity allows scholars to demonstrate that the resulting residue is...