In this isotopes worksheet, students find the average atomic mass given the masses of two isotopes. They also calculate the atomic mass of elements given the percentages of each isotope.

Learners investigate how to determine the percent composition of a mineral in an ore. For this mining an ore lesson plan, students use chocolate chips cookies to represent an ore and they remove precious minerals (the chocolate chips)...

In this moles worksheet, students read about mass, formula mass and moles. They calculate the masses of given numbers of moles of compounds and they calculate the number of moles of given masses of compounds.

Students investigate the structure of the atom and its composition. In this atom structure lesson, students find the area of cut out circles and drop pens into the circles. They count the number of marks in the circles and relate their...

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...

For this moles worksheet, students read about mole and learn how to calculate the number of moles in specific mass of compounds. This worksheet has 14 problems to solve.

For this chemistry calculations review worksheet, students solve 33 review problems about titrations, precipitates, pressure and volume of gases, combustion reactions, heat of combustion, molar concentrations and molecular formulas.

Explore the connection of surface area to bonding within atoms. Learners complete lab investigations to model changing surface area with different sizes and concentrations of atoms. A flour fireball demonstration follows the labs to...

At the end of a general physics course focused on light and electricity, you can administer this exam. Concepts covered include electromagnetism, circuits, induction, light rays, lenses and mirrors, characteristics of light, electron...

This is a tremendous overview of the tiny atom. Journey through the history of human understanding of this basic building block of matter. Examine each of the sub-atomic particles in detail: neutrons, protons, electrons, quarks. Peruse...

Because of the work of John Dalton, we are able to write formulas for compounds. The hands-on experiment has scholars prepare a compound from its elements. Using mass data, individuals write the empirical formula for the compound.

What's the difference between a rock and a mineral? And what properties are used to identify minerals? The first installment of a five-part series on earth materials and processes prompts young scientists to identify a set of...

Students study the difference between types of ionizing radiation and how elements are transmuted. They determine that radiation is normal and surrounds us. They calculate the amounts of alpha, beta and gamma radiation emitted from a...

In this quantities in chemistry instructional activity, students solve 13 review problems about percent composition, significant digits, the mole, simple and molecular formulas, balancing equations, stoichiometry, limiting reagents and...

In this minerals and rocks activity, students answer questions about the chemistry of minerals, scratch tests, rocks and the rock cycle, and erosion and deposition.

In this thermochemistry worksheet, students solve a variety of problems including finding heats or reactions, determining specific heats of substances, finding the amount of energy released in a calorimeter determining the final...

Students will review a semesters worth of material on this final chemistry review. Information ranges from naming isotopes to pH and molarity.

Learners analyze the amount of space required to pack round objects. In this geometry instructional activity, students practice using space economically by practicing packing spheres into beakers. They then translate this concept to...

[Free Registration/Login may be required to access all resource tools.] Shows the calculation of mass number.

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will be asked to define atomic number, mass number and understand how isotopes differ from one another. They will be able...

[Free Registration/Login may be required to access all resource tools.] Covers definition of atomic mass and calculations of atomic mass.

This activity allows young scholars to gain an understanding of the relationship between the mass and relative abundance of an isotope and its effect on the average atomic mass of the element. Students will be given a random sample of...

[Free Registration/Login Required] Students explore how percent abundances of different isotopes affect the average atomic mass for that given element. Students form connections between the average atomic mass and a person's body mass....

This slide and audio book shows how to relate mass to a number of particles by using many formulas, examples, and real life scenarios. View the weighted average calculations, Avogadro's number, the atomic mass of carbon, and molar mass.