High schoolers 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 connect rock and mineral formation with the changes rocks and minerals undergo at the earth's surface. They observe changes produced by weathering and relating these observations to chemical processes such as oxidation,...

Young scholars treat a high molecular weight polyvinyl alcohol polymer with potassium periodate. They measure the viscosity of polyvinyl alcohols.

Students are given a two week period to put to use the knowledge they have gained while studying bacteria. As a culminating activity, students each receive three unknown bacteria to identify.

Learners explore the role of enzymes in chemical reactions. In this enzymes lesson plan, students use hydrogen peroxide and manganese dioxide to observe a chemical reaction. Learners observe the rates of reactions of chalk, hamburger,...

Students produce esters in the laboratory by combining different carboxylic acids with different alcohol. In this esterification lesson plan, students experiment with 3 carboxylic acids and 3 alcohols to produce 3 esters with fruit like...

Students investigate alternative catalysts for the degradation of hydrogen peroxide.  For this fermentation lesson students complete an activity that breaks down cellulose into sugar. 

Students discuss how much fiber and water a person needs each day. They use beans soaked in water to show the benefits of water to the human body. They also learn the health benefits to eating healthy.

Learners examine the effects of specific enzymes on samples of liver tissue, muscle tissue (chicken), apples, and potatoes.

High schoolers use this laboratory exercise, restriction enzymes to recognize a four-, six-, and eight-nucleotide sequence. Assuming that the four component nucleotides (A, C, T, G) are distributed randomly within a DNA molecule, then...

Learners examine the characteristics of lactose and lactase.  In this enzyme lesson students study the lactose in milk and its rate of dissolution.

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 the use of restriction enzymes to recognize a four-, six-, and eight-nucleotide sequence. They utilize restrictive endonucleases to cut Thymus DNA and compare results by viewing the DNA fragments on Agarose Gel...