Students explore the physical process of melting. They observe melting ice and answer questions related to energy transfer during phase changes.

Young scholars investigate the changes that occur at the molecular level when a liquid becomes a solid. They freeze water in baby jars and observe the changes that occur in the process.

Students investigate the process that occurs when liquids evaporaate. They test water and alcohol to determine which substance evaporates more quickly and relate the rate to energy changes.

Eighth graders examine what materials cause water hardness and the relative measure of water hardness in a two part lab activity. In part one, 8th graders add an assigned soap test solution to eleven different test tube solutions in...

Middle schoolers predict which types of soils would work best for keeping contaminants contained. They comprehend that in the past, landfills have been one major source of groundwater contamination. Pupils comprehend that placing and...

Students conduct labs to gain an overview of chemical reactions. They observe examples of synthesis, decomposition, single displacement and double displacement reactions. They identify certain products by the use of litmus and splint tests.

Eleventh graders study the use of the periodic table to develop a better understanding of the chemical elements.

In this equilibrium worksheet, young scholars calculate the equilibrium constant for reactions and the equilibrium concentrations. This worksheet has 10 problems to solve.

Students describe the properties of solids and liquids, and explain how a semiconductor works.  In this atom lesson students demonstrate the bonding properties of carbon and silicon.

In this chemical reaction worksheet, students define equilibrium, determine what affects the progress of a reaction, and compare and contrast entropy and enthalpy. This worksheet has 5 fill in the blank, 5 short answer, and 16 problems...

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 reactions worksheet, students give the equation for the overall reaction, identifying the catalyst in the equation. Students create graphs and write out the rate determining step. This worksheet has 4 graphs, 2 short answers, and...

In this reactions worksheet, students use graphs showing reaction progress to determine if the reaction is exothermic or endothermic, the activation energy, and the enthalpy of change. This worksheet has 1 graph, 7 short answer, and 16...

In this thermodynamics worksheet, students calculate the change of entropy and standard free energy change for given reactions. Students write expressions for the thermodynamic equilibrium constants for reactions. This worksheet has 10...

In this aqueous equilbria worksheet, students write the solubility product expressions for the given salts. Students determine what affects the solubility of salts. Students calculate the pH of a buffer solution. This worksheet has 14...

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

Students study oxidation and define vocabulary pertinent to it.  In this oxidation lesson students make predictions and create experiments

Pupils compare their unknown serum against a set of known serum standards and determine the animal source of their serum. They write a lab report to communicate their results.

Students convert Celsius to Kelvin temperature. Students conduct three lab experiments, gas law simulations using Internet applets, lectures and demonstrations. The Laws included are Boyle's, Charles, Combined Gas, Ideal Gas, and Gram's...

In this moles worksheet, students practice calculating the number of moles based on grams of a compound. Students use the rate of reaction equation to determine the rates of specific reactions. This worksheet has 10 problems to solve.

In this activity series worksheet, students read about single replacement reactions and are given a table with the activity series of metals and nonmetals. Students use the activity series to predict if reactions will occur and they...

In this redox and electrochemistry worksheet, students identify the anode in electrode pairs of electrochemical cells. They also describe how a lemon battery works and how wet and dry voltaic cells work.

Students read a book and have a class discussion about the air around them. In this air lesson plan, students learn about properties of air, and discuss other gases they have observed.

Students make a baking soda rocket out of vinegar, baking soda, and a soda bottle. In this rockets lesson plan, students discuss the liquid, solid, and gas combination.