Curated OER
Sunrise, Sunset
What locations on Earth get the longest number of hours of daylight in the summer? Hint: It's not the equator! Use real-world sunrise and sunset data to develop trigonometric models that can be used to estimate the number of hours of...
EngageNY
Addition and Subtraction Formulas 2
Knowing the addition formulas allows for the calculations of double and half formulas. The fourth installment of 16 has the class use the addition formula to develop the double angle trigonometric formulas. Using the double formula,...
Curated OER
Molecular Models
In this molecular formula worksheet students fill in a table describing elements and chemical formulas. They identify, elements by type and how they bond. The student analyze molecular formulas to identify the number of atoms and if the...
Curated OER
Minerals and Rocks
In this geology worksheet, students locate 55 rock and mineral terms in a word search. Answers to the word search are available in various formats.
Curated OER
1999 U.S. National Chemistry Olympiad Part III
In this chemistry olympiad laboratory worksheet, learners design and carry out two experiments. They design one experiment to test for the percent mass of a substance in a solution and they design another experiment to identify two...
Chemistry Teacher
Metals, Nonmetals, and Metalloids Lab
What an exciting way to introduce your blossoming chemists to the world of metals, nonmetals, metalloids, and polymers! Here is a lab activity that is designed to allow pupils the opportunity to visualize the reaction of metals,...
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...
Curated OER
Drawing Lewis Structures
In this drawing Lewis structures worksheet, students read about the 5 steps taken to draw Lewis structures for atoms and molecules. These include identifying the valence electrons, placing pairs of electrons between atoms to be bonded,...
It's About Time
Chemical Names and Formulas
Abracadabra! Provide your class with the tools to perform a chemical "magic show" as they predict the charges of various ions, determine ionic compound formulas, and make observations to determine when a chemical reaction between two...
It's About Time
How Atoms Interact with Each Other
Connect the dots and assist young chemists as they demonstrate covalent and ionic bonding. Class members use their knowledge of valence electrons to predict compound formulas as they arrange electrons into various bonding structures to...
It's About Time
What Determines and Limits an Atom's Mass?
Provide learners with the tools to further understand nuclear energy and isotopes. Young chemists investigate the components of an atom's nucleus, use symbols to represent various isotope forms, and use the percent abundance of an atom's...
Curated OER
Observations of Properties of Matter
To guide learners through observations of chemical samples in the lab, this resource asks them to give all formulas and complete the attached data sheet. There are multiple questions about categories of elements and general behavior,
Curated OER
2005 U.S. National Chemistry Olympiad - Local Section Exam
National Chemistry Olympiad tests are released after their use each year, since they cannot use them again for this event. The result: outstanding comprehensive assessment resources for general chemistry classes! This 2005 version covers...
Curated OER
Ranking Molecular Properties Based Upon Intermolecular Forces
A splendid chart of information about chemical bonding tops the first page. In it you will find information on London forces, permanent dipoles, hydrogen bonds, ionic bonds, and covalent bonds. A four-step process for assigning...
Curated OER
WS 7.1.3 Molecular and Ionic Compounds
In this compounds activity, students name ionic and molecular compounds given their formulas. They also write the formulas for molecular and ionic compounds given their names.
Curated OER
Math for AS Chemistry
No practice problems are given on this handout; it is a detailed list of concepts to know and tips for working related problems in chemistry. Give this to learners as a study guide, or use it early in your career as a chemistry...
Curated OER
5th grade science review
In this science review worksheet, 5th graders answer questions about molecules, force, elements, nature, and more. Students complete 25 multiple choice questions.
Curated OER
All About Circuits ~ Atomic Structure
In this interactive Internet assignment, physical science investigators answer 11 questions about the atom, the subatomic particles, and atomic structure. They can click on "Reveal Answer" to discover if they are correct. They also...
Beyond Benign
Catalysts and Oxygen
Here is an engaging and hands-on lesson plan that allows high school chemists to demonstrate the effects of a catalyst on various chemicals. They garner knowledge of how reactants and products differ from one another, while analyzing the...
It's About Time
Are Atoms Invisible?
Wow, an experiment that allows the class to participate in a missile war! Pupils discuss Thomsons's theory of cathode rays and simulate Rutherford's historical experiment to learn about atomic structure. They conclude this fourth lesson...
It's About Time
The Chemical Behavior of Atoms
Assist your class with this colorful activity as students view and interpret changes in the hydrogen atom. They discuss concepts of the electromagnetic spectrum and use Bohr's model to predict wavelengths and light patterns,...