Twelve questions about the various calculations of mass and yield are given here.  There is significant practice of molarity calculations and consideration of the reactant and product balance.

Each of the slides here gives a definition, equation, or calculation example for a component of force and motion. This large collection covers topics from momentum and Newton's laws to centripetal forces and simple machines. Animations...

In this density activity, high schoolers are given 11 problems and they determine the density of the substance, the mass of the substance or the volume. They write the equation they use to solve the problem, they show their work and they...

All sodium carbonate may not have the same amount of carbonate, but it should have the same percent. Learners write and balance an equation to predict the chemical reaction between sodium carbonate and zinc acetate. Through the lab...

A great way to learn about molecular structures is to make a model. Gumdrops and toothpicks are used to construct crystal models. The models are based on theories of crystal shapes that occur because of positive and or negatively charged...

Somehow 55 chemistry problems have been squished onto a single page! Don't assume that it is a mess, however. High school chemists write the products for different types of reactions. Then they identify the type of reaction in addition...

Here is a laboratory exercise in which chemistry masters conduct an oxidation reaction to change ethanol into ethanal. They compare the original alcohol to the resulting aldehyde by forming a precipitate. This activity is aimed at...

Turn aluminum cans into pickles! An engaging experiment has learners chemically change aluminum into a substance with many purposes including the manufacture of pickles. After performing the chemical conversion, the experimenters verify...

On Earth, a candle flame points up, but on the International Space Station, it forms a sphere. Young scientists practice their skills by recording observations before, during, and after a candle burns. Chemical and physical...

How well do your young chemists know their acid-base reactions? Reinforce neutralization reaction and problem-solving skills with a challenging interactive. Learners examine the reactants, then predict the outcome in a series of...

Colorful lead compounds never fail to impress! Solubility scholars examine a series of double replacement reactions involving lead nitrate and record their observations. The second part of the experiment illustrates the differences...

In this stoichiometry homework worksheet, students balance each chemical equation. Students calculate how many grams, moles, and molecules are present in each problem provided.

In this stoichiometry instructional activity, high schoolers calculate balance the chemical equations and then calculate the moles needed to complete or activate the chemical reaction. Students also calculate the volume or grams needed...

In this inorganic reactions worksheet, students complete 7 chemical reactions by predicting the products and balancing the equations.

Young scholars identify the characteristics of what occurs during a chemical change. In groups, they review the two types of chemical changes and practice balancing equations. In an experiment, they observe the change occuring and must...

In this chemistry worksheet, students write the balanced equation for the problem at the top of the sheet. Then they determine which reactant is the limiting reactant and which one is in excess. Students also explain the procedures for...

In this chemical reactions worksheet, students determine the reaction rate for various reactions, write balanced equations, create graphs showing the reaction over time, and calculate the activation energy and potential energy. This...

In this chemical reactions worksheet, high schoolers fill in 12 blanks, determine if 5 statements are true or false, match 4 types of reactions with their description and solve 2 problems related to balancing equations and chemical...

Students review data from a 24-hour dietary recall to gain a practical understanding of information regarding energy intake and macronutrients.

In this stoichiometry activity, students calculate the amount of heat energy released in combustion equations. This activity has 4 problems to solve.

In this chemistry worksheet, students look for the weight of acid and examine its mass using chemical equations and a laboratory procedure.

Students investigate the relationships between weights, and construct a balanced first class lever. They formulate a general equation for the relationship explored in the experiment and perform calculations.

In this chemistry activity, students balance the list of equations given using their knowledge of the Periodic table. There are 27 equations to solve on the sheet.

Four balanced chemical equations are presented for your pupils to analyze. They identify limiting reagents and use dimensional analysis to compute products. This practical worksheet is one that you will want to keep in your repertoire to...