Curated OER
The Great Cafeteria Caper
Young scholars extract DNA from their own hair roots. They run an electrophoresis gel to examine patterns of their DNA along with standard DNA. The experiment is based on a crime scene scenario.
Curated OER
Hand Lotion Analysis
Students prepare a sample of a commercial hand lotion for analysis by HPLC to determine the percent composition of two common cosmetic preservatives, methylparaben and propylparaben. They perform the analysis and the data is evaluated to...
Curated OER
Out of the Dust: Narrative Essay
To conclude their study of Out of the Dust, the 1998 Newbery Medal winning verse novel, individuals craft a narrative essay based on one of the themes in Karen Hesse's novel.
American Physiological Society
Sticky Adaptations A Lesson on Natural Selection
Now you see it, now you don't! The stick bug exhibits the ability to disappear into a wooded environment. Why does this adaptation manifest in some species, but not in others? Life science students explore animal adaptations in nature...
Curated OER
Climate Change
Rising sea levels, strong storms, melting ice ... who or what is to blame? Scholars browse the website in preparation for a class discussion or debate about whether human activity is causing climate change. They gain a balanced...
ProCon
Video Games and Violence
Is screen time dangerous time? Scholars take a close look at the facts surrounding video games and violence. Pros give evidence connecting violence to video games while cons suggest there is no relationship.
Curated OER
Writing with Writers for Grades 9-12
Have your class examine the characteristics of various writing genres using the Writing with Writers online project. Detailed instructions for how to introduce, discuss, and develop a piece of writing for each genre are included. Class...
University of North Carolina
Sciences
Science writing follows many of the same principles as writing in language arts, but some structural details differ. Individuals read an online science handout that covers how to write with precision, choose appropriate details, and use...
Curated OER
Designer Colors, an Inquiry Approach to Flame Testing
Students investigate the spectroscopic colors unique to elements, and to use this information to create a specific color. They follow a detailed schematic to produce a spectroscpoe to be used in the testing.
Curated OER
Understanding the Water Cycle
Investigate the water cycle and how water moves from the land to the air and back to the land. Create a terrarium and observe the water cycle at work. Define weather terms including evaporation, condensation, and precipitation.
Curated OER
# 14 Experimenting with Copper (II) Solutions
Students determine that the relative concentration of copper ions in water can be determined by a color comparison. They make a copper (II) sulfate solution of a given concentration. Students dilute their initial solutions until their...
Curated OER
Analytical Problem Solving
Students explore about propagation of error in calculations using experimental data. They develop their weighing and pipetting techniques. Students explore the following terms: Standard deviation and relative standard deviatin. They...
Curated OER
Slime and Intermolecular Attractions
Young scholars explore the strength of intermolecular attractions. They make slime and compare the difference in the physical properties of sheet and powdered polyvinyl alcohol with polyvinyl acetate.
Curated OER
#21 Films, Fibers, and Solubility
Students are introduced to how the differences in solubility of materials are used in the manufacture of fibers and films. They are also introduced to the various processes used to make films and fibers. Pupils prepare fibers using wet...
Curated OER
Activities for a High School Instrumentation Course
The intent of this series of activities is to introduce high schoolers to the field of chemical instrumentaiton. They perform a few basic chemistry lab techniques: pH titration, paper, gas, and liquid chromatography, ultraviolet and...
Curated OER
Intrinsic Viscosity
Students treat a high molecular weight polyvinyl alcohol polymer with potassium periodate. They measure the viscosity of polyvinyl alcohols.
Curated OER
Using a Controlled Experiment to Identify Two Unknown Plasmids
Student demonstrate knowledge of recombinant DNA techniques (restriction enzyme digest, gel electrophoresis, and staining gel). They demonstrate skills needed to complete a gel electrophoresis and interpret a stained gel. Pupils solve...
Curated OER
Library Orientation
Quidditch anyone? Here's a fun way to introduce your class to the resources available in the library as well as on the Internet. Researchers create an outline of the sources they locate about Harry Potter, J.K. Rowling, quidditch, and...
Curated OER
Human Cloning: Is it Biological Plagiarism?
Is cloning good or harmful? Help your class understand the risks and benefits as they read, research, and discuss human cloning. Individuals form teams, research information, and present to the class before concluding with an in-depth...
Curated OER
Dead Zones: Why Are the Waters Dying?
Students investigate the effects of pollution on marine ecosystems. They read and discuss an article, identify the effects of pollution on marine life, conduct research on local nutrient pollution, and conduct local water quality studies.
Curated OER
Simple Tensile Testing of Polymeric Films and Sheeting
Chemistry classes pretend to be consultants to a grocery story trying to decide what polymer to use for therir new non-paper bags. They prepare tensile bars and use them to test plastic film samples for strength and stretchability. Both...
Curated OER
Investigation of Crystallinity in Polymeric Materials
A kaleidoscope is constructed using polarizing polymer paper and then low-density polyethylene, high-density polyethylene, and polypropylene are all melted onto individual glass slides and examined through a microscope. The intent is to...
Curated OER
Condensation Polymerization
This organic chemistry lab activity is appropriate for teaching polymerization, percent yield, melting point, or the types and uses of polymer materials. Chemistry pupils imagine that they are working for a company to develop a special...
Curated OER
Chemical Resistance and Synthetic Polymers
Students participate in lab activities in which they examine immersion, stain resistance, and stress cracking of synthetic polymers. Students use their collected data to discuss service applications and possible performance of materials.