You definitely want to check out this mole! Chemistry scholars experiment to observe an unobservable quantity with an engaging lesson plan from K20. Partners collaborate to determine what's inside an opaque box, then complete a series of...

Students explore the basic concept of physical and chemical properties of the element lead, as well as its historical and modern day uses, and how and why it is toxic to the human body. They are shown the basic reactions of the element...

Students classify materials. In this chemistry lesson, students examine the properties of solids, liquids, and gases. Students discover the elements, compounds, and chemical symbols.

Learners differentiate physical and chemical changes. In this chemistry lesson, students give examples of each type of change. They take the review quiz at the end of the lesson.

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 conduct an experiment to test the reactivity of metals and non-metals. In this chemistry instructional activity students test metals with different chemicals to observe the reaction. The results are used to categorize the metals.

Students explore electrolysis and Redox reactions.  In this exploratory lesson students demonstrate an example of electrolysis and how it brings on a chemical change. 

In this reactions worksheet, students learn how to solve stoichiometric problems based on the mole ratios of a balanced equation. Then students complete 7 problems.

In this chemical equations instructional activity, learners are given 37 word equations and they complete each by filling in the product or reactant that is missing using words.

In this oxidation-reduction reactions learning exercise, high schoolers read about reactions where elements gain and lose electrons. When elements gain electrons they are reduced and when the lose electrons the elements are oxidized....

In this organic reactions worksheet, students are given descriptions of the seven types of reaction of organic compounds. They then answer six questions about these reactions.

In this neutralization reaction worksheet, students read about how neutralization reactions are double replacement reactions in water. They complete five questions about neutralization reactions including completing five reactions and...

In this endothermic and exothermic reactions worksheet, learners experiment with water and a salt of choice to determine if heat is absorbed or released in the reaction. Students take the temperature of their solution over a 2 minute...

In this chemistry review instructional activity, students classify and name compounds, calculate atomic mass, draw Lewis Dot Diagrams, and determine number of protons for atoms. This instructional activity has 37 fill in the blank, 38...

Students will review a semesters worth of material on this final chemistry review. Information ranges from naming isotopes to pH and molarity.

Hopefully by the time high schoolers are enrolled in your chemistry class, they are skilled with unit conversion. It does not hurt, however, to take an hour early in the school year to review this vital skill. This plan simply provides a...

In this chemical equilibrium instructional activity, students review hydration, dissociation, and colligative properties. Students also review Le Chatelier's principle. This instructional activity has 15 short answer questions and 12...

Eighth graders distinguish between physical and chemical change. In this chemistry lesson, 8th graders observe a series of demonstrations showing physical and chemical changes. They identify the signs that a chemical reaction took place.

For this chemistry worksheet, students classify each chemical compound as a ketone, amine, aldehyde, or ether. Students also write a condensed formula and classification for the given organic products.

In this acids and bases worksheet, students read about the differences between acids and bases and then complete a table comparing the characteristics of both. Then students determine if the given statements describe an acid, base, or...

In this titration worksheet, students calculate the pH of a solution at different points during a chemical reaction. Students write a balanced net ionic equation for the major equilibrium reaction. This worksheet has 3 problems to solve.

Does the size of a sample change the physical properties of that substance? It turns out it can! Young scientists combine physics and chemistry to synthesize CdSe quantum dots and record their color properties. Learners should...

Students verbalize a simple particle theory, They apply their particle theory to explain what happens during chemical reactions and how this theory supports the law of conservation of matter. Pupils comprehend that the atomic theory,...

In this chemical reaction worksheet, students investigate the reaction that makes curds and whey. They mix milk and vinegar and run it through cheesecloth to collect the solid. Students make observations, read about curds and whey, and...