A 12-page midterm exam sample can be given to young scientists in preparation for an exam. This particular installment is geared toward a class that delves into both ecology and chemistry concepts. There is no way to separate the 50...

A chemistry presentation focuses on mixtures. Learners consider many sets of mixtures, such as sand and water, and marbles and water. They decide which mixture can be separated, then are led through a process to do just that. A fun and...

Advanced chemistry scholars read about gas chromatography as a means of separating mixtures into their components. Then they try the technique on fingernail polish remover. Detailed instructions are provided via a lab sheet for your...

Students develop a method to separate different types of mixtures. In this chemistry activity, students model the steps in the scientific method. They perform the experiment and analyze data.

In this mixtures activity, students fill in 7 blanks, determine if 4 statements are true or false, match 7 terms with the appropriate definitions, and solve 2 problems. These include topics such as homogeneous and heterogeneous mixtures,...

In this compounds worksheet, students compare the differences between compounds and mixtures. This worksheet has 3 short answer questions.

Learners explore mixtures and solutions. In this chemistry lesson plan, students will add different ingredients to jars in order to classify them as mixtures or solutions. There is also a nail balancing activity that can be done at...

Weighted averages can be tricky to explain! However, this study guide makes it easy for teachers by including definitions, explanations, and breaking down problems into three steps. Includes mixture problems and uniform motion problems.

In this chemistry learning exercise, students answer 2 problems on solution stoichiometry. They calculate the mass of products formed given a certain amount of reactant.

Using a famous children's story as the hook, learners explore the concept of changes in matter. First, they make a cake similar to the one made by Alice in the story Alice's Adventure in Wonderland by Lewis Carroll. Next, they let their...

Groups use alcohol and chromatography paper to separate the color components of black ink. The purpose of the activity is to allow the class to become aware that mixtures exist in hidden places. 

In this chemistry review worksheet, students answer a variety of questions about matter, elements, the kinetic theory, chemical and physical properties and the distillation process. They complete a concept map about matter.

In this fractions in chemistry worksheet, students solve 2 problems where they state all the answers as simple fractions or integers. They determine ratios of molecules in gasoline and they find ratio of molecules in the creation of...

In this equilibrium activity, students solve twenty problems including determining the effects of various stresses on chemical reactions, calculating equilibrium constants, determining heat of reactions and writing expression for...

In this matter and change worksheet, students answer 24 questions on topics such as elements, compounds, mixtures and chemical reactions. Students answer questions about the properties of matter such as their physical state and shape. In...

In this chemistry competencies worksheet, students calculate rate law, balance equations, determine pH of solutions, give the oxidation number for atoms, and write in formulas. This worksheet has 4 fill in the blank questions and 20...

In this solubility worksheet, students calculate the final concentrations of the ions involved in a chemical mixture. Students calculate the solubility of different compounds. This worksheet has 13 problems to solve.

In this chemistry practice worksheet, 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...

In this nuclear chemistry activity, students determine the biological effects and the applications of nuclear chemistry. Then students use Einstein's theory of special relativity to complete 3 problems.

In this chemistry instructional activity, students answer 15 short answer questions about rocks and ores. They explore write balanced chemical reactions from word equations given.

In this alchemy activity, students read about how alchemists kept their experiment notes in secret code. Students design their own secret code for the given elements. This activity has 2 problems to solve.

In this conversion factor worksheet, students convert 15 problems within the SI system of measurement. They show their work and indicate the proper units.

All chemical reactions require energy. To explore thermodynamics, classes read and discuss its laws, exothermic and endothermic reactions, enthalpy in many forms, calculate enthalpy problems, and use Hess' Law to calculate enthalpy of a...

In this chemistry worksheet, students complete 10 problems on equilibrium. They calculate equilibrium constants and concentration of products and reactants.