Curated OER
Factors Affecting Microbial Growth
Students listen to a lecture on four factors that influence microbial growth and they discuss how to test the optimal growth requirements of a designated bacterium. They design and carry out laboratory investigations to test growth of...
Virginia Department of Education
Macromolecules
Finally, a chance for the class to play with their food! Allow pupils to simulate stomach acid with common foods, and introduce specific macromolecules into the mixture to explore characteristics of carbohydrates, lipids, and proteins....
Virginia Department of Education
Biomes of the World
Incorporate knowledge about biomes and ecosystems in multiple ways while encouraging creativity. Emerging ecologists collaborate and perform research to complete a graphic organizer about various biomes of the world. They conclude the...
Virginia Department of Education
Predator-Prey Simulation
Do your pupils have the misconception that environmental predators are "bad" and harm smaller creatures? The simulation explains, in detail, the important role predators play in maintaining a stable ecosystem. Through web-based research,...
Virginia Department of Education
Laboratory Safety and Skills
Avoiding lab safety rules will not give you super powers. The lesson opens with a demonstration of not following safety rules. Then, young chemists practice their lab safety while finding the mass of each item in a mixture and trying to...
Virginia Department of Education
Cell Division
Searching for simple ways to teach mitosis to high schoolers? Using colored chalk and onion root tips, pupils visually demonstrate what they view when looking through the lens of a microscope. There are also various ways to expand the...
Social Studies School Service
“Duck and Cover” (Civil Defense)
Bert the Turtle models for viewers the 1950s Civil Defense Duck and Cover strategy that was supposed to protect citizens from a nuclear blast. After viewing the video, watchers are asked to consider the motivations of the producers of...
Curated OER
Elements of Biology: Genetics
Young scholars study genetic manipulations and identify the solutions that could help to solve a problem. In this genetics activity students divide into groups and research genetics for a debate.
American Chemical Society
Using Chemical Change to Identify an Unknown
If you have taught the first lesson in this mini unit, learners already know that cabbage juice and vinegar cause chemical changes in some materials. Now, they get a chance to use them to compare the liquids' reactions to five known and...
Curated OER
2007 U.S. National Chemistry Olympiad Part II
Eight multi-step chemistry problems, including analyzing a titration, writing equations, predicting products and limiting reagents, calculating concentrations of ions, and using stoichiometry to solve for unknowns in reactions make up...
Curated OER
2008 U.S. National Chemistry Olympiad Part III
In this chemistry olympiad lab worksheet, chemists are required to design two experiments. In one, they design an experiment to identify seven solutions given to them in pipettes. In the other, they design an experiment to determine the...
Curated OER
2000 U.S. National Chemistry Olympiad Part II
In this chemistry olympiad problem solving instructional activity, chemistry pupils solve eight problems on a variety of topics including periodic trends, phase changes, ionization reactions, catalysts and titrations.
Curated OER
2008 U.S. National Chemistry Olympiad Part I
In this chemistry Olympiad worksheet, students solve sixty multiple choice questions on a variety of chemistry topics from finding molarity of solutions to calculating products of reactions. Students are given graphs, equations, reaction...
Curated OER
2006 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad lab instructional activity, students are given two lab problems to design experiments. Topics include determining the mass percentage of a given compound and determining an unknown metal using quantitative and...
Curated OER
2002 U.S. National Chemistry Olympiad National Exam - Part III
Two laboratory problems are put forth for chemistry students. They are to plan and carry out an experiment that will answer each of the questions. The first asks them to investigate a relationship between the surface area of a potato and...
American Chemical Society
Curious Crystals
Crystals are more than meets the eye! Can learners tell them apart simply by observation? As they examine five samples with a magnifier, they find that appearance alone is not enough. This serves as an introduction to a mini unit on...
Curated OER
2001 U.S. National Chemistry Olympiad - Local Section Exam
Sixty multiple-choice chemistry questions make up this comprehensive exam used for the 2001 US National Chemistry Olympiad. Every topic that you would expect to approach in a general chemistry class is queried on. You could easily use...
Curated OER
2004 U.S. National Chemistry Olympiad - Local Section Exam
In this National Olympiad exam worksheet, chemistry apprentices answer sixty multiple choice questions including general chemistry topics such as atomic structure, gases, problem solving, writing and balancing equations and solutions....
Curated OER
2000 U.S. National Chemistry Olympiad Local Section Exam
This 60-question comprehensive exam was designed to determine who would go on to compete in the 2000 US National Chemistry Olympiad. Hopefuls answer multiple choice questions regarding all chemistry topics taught in the first year...
Curated OER
2009 U. S. National Chemistry Olympiad - Local Section Exam
Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...
Curated OER
2007 U.S. National Chemistry Olympiad Local Section Exam
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
Foundation for Water & Energy Education
How is Flowing Water an Energy Source? Activity A
Here is a fun little exploration of the potential energy potential of falling water. Learners drop water from various heights using a straw, and they analyze the diameter of the splash. Pair this with two more activities of the same...
Curated OER
Transportation Systems: Two Liter Boat Activity
High schoolers design and build full-size boats made out of two-liter plastic bottles, chicken wire, and plywood. Then they race the boats, with the boat's designers "manning the hull", in the school's swimming pool.
Curated OER
Fun With Chemical Changes
Looking for a terrific chemistry lesson for your 5th graders? This one could be for you! After a teacher-led demonstration, learners are broken up into groups and perform an experiment using cabbage juice, water, window cleaner, and...