Students study the water quality of a stream in their area, by measuring the temperature, pH, alkalinity and conductivity. They integrate biology with earth science when using the microscope to study the living organisms in the water.

Students analyze the calcium content of egg shells as an introduction to the toxic effects of pesticides on biological systems.

Students conduct a series of tests to identify unknown compounds. In this chemistry lesson, students compare the physical and chemical properties of substances. They collect data and formulate a conclusion.

Students undertake a series of experiments related to the water cycle. All experiments use John Dewey's experiential philosophy as their bases. Each lesson is clearly based on philosophy and attempts to be relevant.

Students explore what amino acids are, their history and how they are used in technology.  For this protein lesson students identify the properties of proteins and amino acids.

Students gain experience in designing an experiment and use logic in selecting specific tests for unknowns. Students recognize the use of spreadsheets in helping one to make clear comparisons.

Students investigate "indicator" (Bromothymol Blue or BTB) to test for the presence of certain chemicals in liquids and gases. They compare distilled water and seltzer water for presence of carbon dioxide.

Students work together to gather water samples. They compare and contrast the water quality from different places in the community. They answer discussion questions to complete the instructional activity.

Young scholars develop hypothesis about what might happen when salt water is frozen. In groups, they freeze ice samples with different salt concentrations. They use the internet to research the situation of the Jeannette to discover...

Use the Virtual Laboratory to standardize an unknown NaOH solution (approximately 0.2M) to four significant figures via titration with 25.00 mL of a KHP standard solution.

In this experiment, you will examine the acidity of your coordination complex's water ligand. You will determine the acid dissociation constant of the complex by titrating it with a base. There are eight weeks of experiments in this series.

In this four-week experiment, you will synthesize a compound and purify it in week 1. In week 2, you will assay it for purity by colorimetric analysis and by gravimetric analysis. In week 3, you will analyze your compound by titration of...

A titration is a method of analysis that will allow you to determine the precise endpoint of a reaction and therefore the precise quantity of reactant in the titration flask. This site demonstrates how to correctly perform this analysis.

Material that can serve as guidelines for a teacher-lead demonstration or student lab experiment. Provides introduction, learner outcomes, safety guidelines, and detailed procedures.

In this lab, students are scientists from the Department of Agriculture and presented with the problem that a farmer has brought to them. The farmer believes the problems are due to illegal dumping of PCB's and other chemicals that...

Maleic Acid gives an excellent diprotic acid titration curve showing both inflection points clearly for calculation of molecular weight.

An experiment from a New Mexico Tech chemistry lab course through which students learn about titration, acetic acid, and weak acids. Contains pre-lab material, diagrams, chemical reactions, procedure, and post-lab questions.

Perform a titration using an indicator to determine the concentration of an HCl solution.

A virtual lab where students determine the concentration of acetic acid in vinegar using a 0.110 M NaOH standard solution and an acid-base indicator, phenolphthalein.

Perform a titration experiment to determine the concentration of absorbic acid in one medium peach.

In this experiment, you will explore the behavior of the monoprotic acid (acetic acid) and the polyprotic acid (phosphoric acid). By titrating, you will examine the acid and conjugate base species present across the pH scale and the...

Tutorial shows proper procedure for handling a buret and using this piece of laboratory equipment to measure liquid volume. View accompanying video full-length [18:00] or in segments.

In this chemistry lab activity, students will study acids/bases before learning how titration data is used to determine an unknown concentration. It is an investigation of the pH curve and an assessment of student's understanding of...

Using the Virtual Laboratory design, students perform an experiment to determine the concentration of the unknown HCl solution to four significant figures.