In this molecular mass and percent composition activity, high schoolers complete 5 sections where they determine atomic masses of given elements, they determine formula masses for given molecules, they find the molecular mass of 12...

For this percent of iron in lawnsand worksheet, learners perform a titration of lawnsand using potassium manganate(VII) solution and determine the number of moles of iron in the sample. Students use the number of moles to find the mass...

In this radioactive decay and half-life worksheet, students use given half-lifes to calculate the amount of time it will take for certain amounts of elements to decay. They also find the age of samples and determine how many grams of...

In this concentration worksheet, students find the percent volume of a compound in a solution and the molality of a solution. They determine the percent mass of a compound in a solution and they determine the mole fraction of water in a...

Seventh graders model radioactive decay using pennies, collect data from their model, apply scientific visualization techniques to their data and create animated models explaining the concept of radioactive half-life.

In this molecules, moles and molar masses worksheet, students find the atomic masses of 8 elements, they write the formulas for 6 diagrams of molecules and they find the molecular masses of 12 compounds. Students also find the fraction...

Lead your class through the amazing world of isotopes as they investigate the various properties they contain and further understand their respective location on the periodic table. They explore half-lives and radioactivity as each...

In this chemistry exam worksheet, students solve fifteen problems related to acids and bases, rates of reactions, and half life.

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...

Recreate the secret Coca-Cola formula in a virtual lab. Young scholars create the solution and then calculate sucrose concentrations in terms of percent mass, molarity, molality, and mole fraction. Then using density, learners...

NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...

In this percentages activity, learners read about how to express numbers as fractions, convert to decimal form and find the percent. They practice by solving four problems using the method they read about.

In this radioactive dating worksheet, high schoolers use their reference guide in their text book to find the half-lives of 4 isotopes. They use a decay chart to help determine the half-lives and age of given bones and samples of...

In this nucleus of an atom worksheet, students answer 19 multiple choice questions about the structure of the atom, radioactive decay, isotopes and half life.

In this enthalpy of reactions learning exercise, students use a known amount of copper (II) sulphate solution and an excess of zinc powder to calculate the reaction's enthalpy change. Students measure the temperature change throughout...

A series of math and science activities feature M&M's® as manipulatives to help kids work through equations. The resource includes exercises on finding averages, percent of compositions, moles in chemical reactions, genotypes and...

In this redox reaction laboratory sheet, chemists answer eight post-lab questions about oxidizing agents, reducing agents, oxidized and reduced substances, and percent yield of products. You will need to provide a proedure for...

In this concentration worksheet, students determine the molality, mole fraction, and the percent by mass for the given solution. This worksheet has five problems to solve.

In this bellwork worksheet, students answer questions about the Paleozoic and Mesozoic eras. They answer questions about fossils, half life, and radioactive material.

Oceans absorb half of the carbon dioxide and 80 percent of the greenhouse gases released into the atmosphere. Scholars learn how and why the oceans store heat more effectively than land and how they help mitigate global warming. Pupils...

What a big job for such a small particle. Young scientists learn about the role of nanoparticles in catalytic converters for cars. They conduct an experiment to create alginate-MnO2 catalytic spheres. 

The 15th activity in the series of 24 helps your classes understand the ppm (part per million) unit of measure. First, scholars experiment with food coloring to determine concentrations before applying their findings to calculate...

Students read about the history of soil and complete language arts, math, social studies, and more activities about soil. In this soil lesson plan, students complete fraction problems, create a school compost pile, write about conserving...

In this global warming and the Arctic ice cap worksheet, students use two graphs showing data about the amount of Arctic sea ice between 1950 and 2006 and the percent of people surveyed that believe the Earth has gotten warmer over the...