Young scholars measure the heat of physical and chemical changes in reactions.  In this chemistry lesson students determine at what extent changes emit or absorb heat. 

Learners define and discuss salinity, conduct classroom experiment to determine salinity of water sample by using hydrometer, record predictions, and demonstrate understanding of how salinity influences object's ability to float in water.

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 lesson requires...

In this solubility instructional activity, high schoolers are presented with a table that shows the solubility of salts and hydroxides in cold water. The table shows which salts and hydroxides are soluble and which are insoluble.

In this molarity activity, students apply the definition of molarity to the given balanced equations. This activity has 4 problems to solve.

In this chemistry worksheet, students balance each of the reactions presented using the periodic table to help. Then they predict the products of the reactions and write the net ionic equation. Students also write the empirical formulas...

Students design experiments examining the effects of various solutes on water. They record results on graphs explaining any unexpected consequences of their experiments and determine if their hypotheses were correct.

How do scientists determine when a solution is fully saturated? Scholars address the topic as they observe patterns of precipitation in various concentrations of ions. Using a well plate, pipette, and common chemicals, they collect data...

In this science learning exercise, 5th graders answer multiple choice questions about the ocean, animals, rocks, and more. Students complete 25 questions.

Students investigate various chemical reactions when creating mixtures in ziplock baggies. For this chemistry lesson, students will recognize various chemical reactions and cite evidence. Safety and assessment strategies are included in...

In this chemical reactions worksheet, high schoolers answer 12 multiple choice questions about compounds, chemical reactions, and balancing equations using coefficients.

Eighth graders analyze physical change in mass. In this chemistry instructional activity, 8th graders describe, measure and calculate the amount of physical change occurring in mass before and after the change. Students should be...

Visit the Explorit Science Center for a quick, interactive quiz. There are five questions on this online quiz, and while they're all related to science, none of them are related to each other. For example, one question asks how many...

Fourth graders, in groups, compile information on groups of elements. They study Alkali Metals, Alkaline Earth Metals, Halogens, and Noble Gases.

In this chemical reactions worksheet, students name the reactants and products, balance the equation, calculate the molecular weight of the reactants and products, and classify each reaction type. Students fill in a table of solubility...

In this balancing equations learning exercise, high schoolers balance 8 equations using the proper coefficients. They also write the chemical formulas and balance 8 equations given the reaction in words.

In this ionic equations worksheet, students are given 20 equations to complete. They are to write the net ionic equation and indicate if a precipitate or gas is formed. In addition they are to determine if 11 compounds are acids or bases...

In this writing chemical reactions worksheet, students solve 15 problems on their own paper using a 3 step-problem solving approach. In addition, students write six balanced equations and classify each reaction. They also write equations...

In this chemical reactions worksheet, students write chemical equations and calculate the moles of each product. This worksheet has 4 word problems.

In this chemical equations worksheet, young scholars balance equations. This worksheet has 22 chemical equations to write out and balance.

In this equations instructional activity, students write equations and classify them as single displacement, double displacement, combustion, combination or decomposition reactions. They also write sample equations of each type of...

In this endocrine system worksheet, young scholars match the correct gland found in the endocrine system to its hormone and target cell(s). They also describe the actions of each gland and hormone combined together.

In this chemical equations worksheet, students write the symbols for the products and reactants and then write balanced symbol equations for the 20 chemical reactions given.

This lab guide gets chemistry high schoolers to determine the identity of five unknown solutions based on reactions with four known solutions. Pupils perform experiments, they write down their observations, they write net ionic equations...