General chemistry class members engage in a mini-unit on mole conversions. Through nine lab activites with varying degrees of difficulty, they practice measuring mass and volume, molar calculations, and stoichiometry. Terrific...

In a hypothetical scenario, food chemists use titration to concoct a brine solution for producing the crunchiest pickles. They also analyze store-bought pickle juices. In addition to reinforcing titration techniques, the instructional...

A scenario is presented for chemistry techs to address. Using titration techniques, they must analyze hydrogen peroxide solution samples. They evaluate accuracy and precision in the process. They also gain experience consulting the MSDS...

This is the grown-up version of the classic "float an egg in salt water" experience, plus an experiment in soap making. High schoolers explore density, but more importantly, practice accuracy, precision, and the use of significant...

Investigators collect the carbon dioxide produced when an antacid tablet is activated and identify what alteration produced the most gas. They also collect the gas in a buret in order to practice precision. Then they choose between two...

Middle and high schoolers study significant people who shaped the 20th-century history and are introduced to database tools. Researchers use the Internet to research five 20th century history makers. They write a short biography of five...

A full-fledged practice final prepares pupils for their general chemistry final exam. If they complete these 57 multiple-choice questions correctly, they will be well-prepared. Note: even though the questions are multiple-choice, there...

In this significant figures learning exercise, learners indicate the number of significant figures in given measurements. They also perform calculations of multiplication, division, addition and subtraction and identify the number of...

The title of this worksheet does not reveal that it was designed to give practice using scientific notation and significant figures, both skills that are useful to young chemists. It includes a table to complete, rounding exercises,...

In this uncertainty worksheet, students solve 8 problems of addition and subtraction using the rules for uncertainty notation. They do the same for 7 problems for multiplication and division. Students add, subtract, multiply and divide...

For this significant figures worksheet, students read about how to determine significant figures in calculations and measurements. They practice identifying significant figures in five problems.

In this significant digits worksheet, students solve fifty six problems which include converting numbers to scientific notation, converting numbers from scientific notation to standard notation, determining significant digits in numbers...

In this chemistry practice activity, students solve sixteen problems including identifying chemical and physical changes, calculating numbers with significant figures, naming compounds and writing formulas and converting from one unit to...

In this significant figures learning exercise, students indicate the number of significant figures and then round each to the number of significant figures shown. This learning exercise has 20 problems to solve.