Curated OER
The Periodic Table, Electrons, and Chemical Bonds
Four activities immerse beginning chemists into the world of elements. They examine the periodic table, use cobalt hydroxide to learn about chemical formulae and valence electrons. Also, they name binary compounds and examine the...
Curated OER
Carbon Bonds in Chemistry
Venture into the world of macromolecules with three exciting, distinct laboratory activities. Young chemists examine the forms of carbon and discover how they are associated with atomic arrangement, construct models of carbon-containing...
Curated OER
The Watson-Crick Model of DNA Structure
Junior geneticists construct models of DNA to discover sequencing and pairing of nucleotides. They use the models to simulate protein synthesis and then translate the codes into physical traits. Finally, they use the traits to create a...
Curated OER
Cellular Organelles
Wow! Separate organelles from the cells of dried peas. Observe vacuoles in beet cells. Watch protists in action. Examine SEM photographs. Beginning biologists get a complete exposure to the structure and function of cell organelles. Two...
University of Rhode Island
Food Safety Smart Curriculum
This is a must-have resource with everything you'll need for studying food safety with your pupils. From handwashing scorecards and cleaning kitchen surfaces to navigating the world of microbes and food-borne illnesses,...
American Chemical Society
pH and Color Change
Did you know strong bases can feel slippery and slimy? Lesson allows scholars to practice using the pH scale to identify acids and bases and their strengths. By changing the concentration of an acid and a base, they create the entire...
Curated OER
Variation and Heredity
Junior geneticists tally eye color and height in their lab groups. They examine certain traits in soybean and corn seedlings. For each activity, they gather data and learn about continuous and discontinuous genetic variation. In another...
Curated OER
Phase Changes of Water
A micro-unit on the phase changes of water includes three laboratory activities. Junior scientists compare the densities of ice and water, and then they do the same for cold and warm water. They examine freezing and boiling temperatures....
Curated OER
Density Studies of the Earth
Density comes to life as investigators place soda cans into containers of various liquids to find if they sink or float. They layer different density liquids, compare densities of different gases, and more. A total of six different...
Curated OER
Neurons and the Nervous System
The highlight of this series is activitiy #4. Anatomy pupils examine slides of three unknown cells. With the function of the nervous system in mind, they consider the structure of each and try to guess which one is part of that system....
Curated OER
Animal Behavior
Can you train a worm? Biology buffs will have a blast trying! Using planaria or earthworms, they introduce a certain stimulus repeatedly until the desired response happens more quickly. They also explore the response of their own eyes to...
Curated OER
Law of Conservation of Momentum
A suggested sequence of events lays out five hands-on activities and four creative assessments on the conservation of momentum. Using spring scales and mail scales, junior physicists examine Newton's Third Law. After you have taught the...
Curated OER
Newton's Second Law
Three memorable activities build on each other to give physics masters a firm grasp of Newton's Second Law. Pupils play with a lab cart on a flat surface and on an incline to confirm that force is equal to mass times acceleration. In the...
Curated OER
Sending Messages to Space
Students interpret a message sent to space using a radio telescope and draw inferences from the interpreted message. Working with a partner, they interpret data that scientists believe is a message from aliens. They work on organizing...
Curated OER
Changing Planet: Black Carbon - a Dusty Situation
Introduce your young meteorologists to black carbon produced by the burning of fossil fuels by showing the video, "Changing Planet: Black Carbon." Viewers discover that deposition of this carbon on polar ice impacts the absorption of...
Curated OER
2009 U.S. National Chemistry Olympiad National Exam - Part I
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to...
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
2000 U.S. National Chemistry Olympiad Part II
In this chemistry olympiad problem solving learning exercise, chemistry pupils solve eight problems on a variety of topics including periodic trends, phase changes, ionization reactions, catalysts and titrations.
Curated OER
1999 U.S. National Chemistry Olympiad Part II
A variety of topics including reaction rates, combustion reactions, periodic trends, and ionization reactions are included in this exam. Test takers also practice calculating empirical and molecular formulas of compounds.
Curated OER
2000 U.S. National Chemistry Olympiad National Exam - Part I
The National Chemistry Olympiad exams are comprehensive tests covering an entire year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your...
Curated OER
2001 U.S. National Chemistry Olympiad Part I
Sixty multiple-choice questions test on a variety of first year chemistry subjects. In order to succeed, exam takers must be competent with properties of elements, stoichiometry problems, gas laws, bond dissociation, and types of...
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