Nanoparticles have toxic effects on plant and animal life—even though you can't see them. The second lesson of a two-part series has young scientists conduct an experiment that exposes plant and animals to nanoparticle pollutants. They...

Join the fight against bacteria. An open investigation shows pupils different aspects of antimicrobial substances, such as disinfectants, deodorants, or plant oils. They design and conduct their own experiments on the effectiveness of...

Students participate in an experiment to demonstrate how a substance can have different concentrations in a solution. Students record observations on a dilution chart and determine the concentations of various parts per million.

Students calculate the concentration of different solutions. For this chemistry lesson, students explain what a solution is. They explain ways to change the concentration of a solution.

In this chemical equations learning exercise, learners are given the trends for the reactions between the alkaline earth metals with water, the solubility of the Group II hydroxides and the solubility of the Group II sulphates.

Titration, and the lab skills that are needed to support it, is detailed here, with the reasoning behind standard solutions, concentration and volumetric analysis covered. Your young lab assistants will learn the skills of determining...

There is a chart to complete with results of the titrations for the 14 different pH indicators.  There are also nine questions for data analysis, and then four problems requiring equations, molarities, and pH values.

Young scholars participate in an experiment to become aware of the harmful effects of an acidic solution -- acid rain.

Learners ligate fragments of genomic DNA from spinach into a vector plasmid. They perform a restriction enzyme digestion. Student use a ligated DNA molecule to transform E. coli cells. Students analyze their procedures and outcome of...

Students compare 4 different form of carbon dioxide and discuss the role that carbon dioxide has in the Greenhouse Effect. They then understand that the Greenhouse Effect is a naturally occurring event.

Students complete an experiment on water to study water quality. In this water quality lesson, students complete a taste test experiment about chemicals in water. Students then study their local water environments and recorded toxins....

For this stoichiometry worksheet, students review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This worksheet has 18 word problems.

High schoolers investigate the effects of temperature and concentration on the rate of reactions. In this "clock reaction" kinetics lesson plan, students change the concentration of one reactant and keep the second constant. An indicator...

Students investigate why cells divide. For this cell size lesson plan, students observe how far a solution travels into 3 different size model cells of agar. They answer questions about the most effect movement of "nutrients" into the...

In this acids and bases worksheet, students identify the strengths of acids and  bases and indicate the concentration of hydronium and hydroxide ions. They determine if given chemical formulas are acids or bases, they find...

Students conduct the Biuret Test and the Bio Rad Protein Assay. They examine the spectrophotometer and graph molecular weights and the concentrations of the proteins investigated. They prepare solutions for the Bio-Rad test and use the...

In this chemical detectives activity, students perform six tests on various unknown solutions, including a test for chloride ions, sulphate ions, carbonate ions, iron (III) ions, iron (II) ions, and copper (II) ions. Students record...

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

Seventh graders investigate acids and bases. In this acids and bases lesson, 7th graders use household items such as coffee, lemons and soap to define acids and bases. They observe a demonstration to show how indicators determine if a...

Fourth graders compare the color of cabbage water when acids and bases are mixed in. In this acids and bases lesson plan, 4th graders use cabbage water and mix in acids and bases that the teacher prepares before hand. They observe the...

In this redox reaction activity, high schoolers perform a redox titration to determine the number of iodide ions that react with each mole of iodate (V) ions in a solution. They calculate their answer using a given equation.

Students investigate diffusion using different solutions of chemicals placed in agar dishes. In this diffusion lesson plan, students observe 3 demonstrations of diffusion using perfume, food coloring in water and sugar cubes in water....

For this equilibrium, acids and bases worksheet, students answer 30 multiple choice questions about the formulas for acids and bases, the products of acid and base reactions, the concentration of ions in acids and bases and equilibrium....

In this transition metal ions and redox learning exercise, students read about the formation of metal ions through oxidation and reduction.