Learners discuss the definitions of physical and chemical properties and changes. They vaporize a solution of salt and water, observing the sodium chloride that is left behind.

High schoolers participate in a lab experiment that explains why doctors take urine samples. They participate in a discussion about the urinary system and have already studied the functions of the organs involved in the urinary system...

Students examine the relationship between leukocyte adhesion and migration in response to chemoattractants. They discuss sterile techniques, observe a demonstration using mock cell culture, and develop a procedure for studying the...

Students work together to test water samples for pollutants. They design data tables to collect and record their observations. They complete discussion questions to end the lesson.

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.

Students use this laboratory exercise as a growth medium that contains the macronutrient and micronutrient needs of plants. They observe the effects of different hormones on tissue cultures and must use variations of the basic growth...

Student groups use lima beans to represent dicots and corn to represent monocots, soak the seeds, and separate the embryos from the cotyledons. They then place the seeds in Petri dishes in agar and observe for at least one week recording...

Students explore why surface tension is such a very important biological concept. Determination is made on why the myriad of biota that interacts at the air-water interface are vital components of aquatic and marine ecosystems. They...

In this calorimetry worksheet, students determine the specific heat and the heat of neutralization in the 2 problems they solve.

For this acids and bases worksheet, students apply the Bronsted-Lowry theory of acids and bases to write the products for the given acid-base reactions. This worksheet has 7 problems to solve.

Textbook-style practice limiting reagent exercises with that can be used as a way to "predict and check" your answers using the virtual lab.

In this activity, students practice with experiments involving limiting reagents and the test their knowledge to determine the concentration of an unknown solution.

How to determine the limiting reagent, and using stoichiometry to calculate the theoretical and percent yield.

Very good site which gives an explanation, example and skill building questions over limiting reagents.

Using the Virtual Laboratory, design an experiment to quickly determine which of the two reagents, HCl or NaOH, is 10 times more concentrated than the other.

Middle of a slide show on stoichiometry that shows a nice graphical look and example of limiting reagents.

This is a complete course in chemical stoichiometry, set in a scenario that shows how stoichiometry calculations are used in real-world situations. This course has been designed to not only help you strengthen your skills with...

In this limiting reagents problem, students are given specific concentrations of DNA solutions and are asked to predict what products and reactants will remain after a specific volumes are mixed and reaction has occurred.

In this limiting reagents problem, students are asked to determine the amount of silver nitrate dissolved in a solution by performing a reaction with solid NaCl. In this randomized activity, each student is given a different unknown...

In this problem, students determine the limiting reagent in a reaction involving the remediation of arsenic from drinking water.

One of the first numerical problems encountered in introductory chemistry is that of "limiting reagents". This applet serves as a supplement to such calculations, providing imagery that helps students see beyond the rote mathematics.

In this limiting reagents problem, students mix together solutions in different ratios in an attempt to produce a final solution that contains only 1 product.

In this limiting reagents problem, students are given specific concentrations of DNA solutions and are asked to predict what products and reactants will remain after a specific volumes are mixed and reaction has occurred.

In this advanced limiting reagent problem, students use the virtual lab to determine the concentration of a solution of DNA by reacting it with known amounts of a fluorescent dye which binds to the DNA.