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This is an 8th grade science activity in which students will perform a variety of tests to determine the properties of different acids and bases.

Type: Lesson Plan

The inquiry method is used for students to gather data and problem solve to determine the identify of unknown pH values to be used to construct a pH value chart.

Type: Lesson Plan

This lesson helps students to differentiate between compounds and mixtures. This lesson will also help students understand how compounds are held together.

Type: Lesson Plan

Students will learn about known elements and discover the products that can be made when those elements react.

Type: Lesson Plan

Students will use their skills as scientists to identify a mystery white powder. This lesson is a hands-on, engaging way to build students' understanding of physical and chemical properties of several common compounds.

Type: Lesson Plan

In this lesson students will learn about the properties of acids and bases in relationship to the pH scale.

Type: Lesson Plan

Join Chef Ragu as he learns about acids, bases, and salts while he cooks up something special. In this interactive tutorial you will compare and classify the properties of compounds that are acids, bases, and salts and identify basic examples of these compounds.

Type: Original Student Tutorial

This informational text resource is intended to support reading in the content area. This informational text on acids and bases takes difficult content and explains it clearly with the aid of several simple diagrams. It explains the pH scale and how the chemists Arrhenius, Bronsted, and Lowry have contributed to our understanding of acids as donors and bases as acceptors.

Type: Text Resource

In this series of 10 investigations, students gain experience with the evidence of chemical change - production of a gas, change in temperature, color change, and formation of a precipitate. Students begin by observing that similar-looking powders can be differentiated by the way they react chemically with certain test liquids. Students then use their chemical tests and observations to identify an unknown powder and, in a follow-up activity, to identify the active ingredients in baking powder. Students continue to explore chemical change by using a thermometer to observe that temperature either increases or decreases during chemical reactions. Then they control these reactions by adjusting the amount of reactants. In another set of activities, students use the color changes of red cabbage indicator to classify substances as acids or bases, neutralize solutions, and compare the relative acidity of two different solutions. Students conclude the investigation by comparing a precipitate to one of the reactants that formed it. Students see that a new substance was created during the chemical reaction. Information and questions about photosynthesis and cellular respiration are included as examples of chemical changes on pages 316-318 of this resource.

Type: Unit/Lesson Sequence

Students explore the concept that chemical reactions involve the breaking of certain bonds between atoms in the reactants, and the rearrangement and rebonding of these atoms to make the products. Students also design tests to investigate how the amount of products and the rate of the reaction can be changed. Students will also explore endothermic and exothermic reactions.

Type: Unit/Lesson Sequence

Students can test the pH of several substances and visualize hydronium, hydroxide, and water molecules in solution by concentration or the number of molecules. Students can add water to a given substance to see the effects it will have on the pH of that substance; or they can create their own custom substance.

Type: Virtual Manipulative