Watch and learn about two hydrogen peroxide reactions in which potassium permanganate is the catalyst.

This lesson focuses on fertilizers including how they replace nitrogen, phosphorus and potassium in the ground; how the plants get the nutrients; a table showing examples of fertilisers, their formula, and the essential elements they...

"What are electrolytes?" Find the answer to this question and read information on potassium, chloride, hyperkalemia, and kidney disease.

Learn about the connection between eating fruit and preventing cardiovascular diseases, reducing the risk for diabetes, and maintaining a healthy body. Also, read about the nutrients that are found in fruits. Includes a link to further...

In addition to defining "Electrolyte," and providing examples, this website describes hypotremia, "The most common electrolyte imbalance associated with kidney disease."

Here is a chart with useful information on the minerals you need to be healthy. Includes "functions" and "sources" of calcium, iron, magnesium, sodium, potassium, zinc, copper, selenium, chromium, manganese, iodine, fluoride, and phosporus.

A nice, clear site, containing a good deal of elemental information, including atomic weight, density, boiling point, isotopes and more. An image shows the electron energy levels for the element.

The students discover the basics of heat transfer in this activity by constructing a constant pressure calorimeter to determine the heat of solution of potassium chloride in water. They first predict the amount of heat consumed by the...

This online biology book chapter offers definitions and descriptions of the nervous system's components.

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will explain how nerve impulses are transmitted.

Investigate ATP structure, ATP hydrolysis to ADP, and reaction coupling in this article.

Students compare and contrast passive and active transport by playing a game to model this phenomenon. Movement through cell membranes is also modeled, as well as the structure and movement typical of the fluid mosaic model of the cell...

This article explains what radioactive dating is and describes the different techniques used, what they are used for, and the limitations of each.

Students use stoichiometry to determine the mass of oxygen gas in a bottle. They may also check their answer against the amount of potassium chloride produced during the reaction.

Students observe and perform experiments with sodium, potassium, calcium, magnesium, sulfur ,and phosphorus. The discover trends down groups, across periods, and having to do with the pH of metal oxides vs. nonmetal oxides.

Site gives a fairly high level breakdown of the general contents of a fertilizer (the Nitrogen, Phosphorus, Potassium, and Sulfur content) and what that does for soil.

Humphry Davy was a pioneer in the field of electrochemistry who used electrolysis to isolate many elements from the compounds in which they occur naturally. Electrolysis is the process by which an electrolyte is altered or decomposed via...

This lesson focuses on predicting chemical reactions using The Group 1 elements in the Periodic Table are known as the alkali metals. They include lithium, sodium and potassium, which all react vigorously with air and water. It provides...

He called his invention "the thanatron." It was an inexpensive contraption. A jewelry chain, parts from an Erector Set, an old motor, an intravenous line, and three plastic bottles. One of the bottles contained a saline solution, another...

Download free curriculum with three modules on soil and plant science: elementary, middle, or high school. Each module includes hands-on investigations to help learners understand the importance of healthy soil and thriving plant...

Download free curriculum with three modules on soil and plant science: elementary, middle, or high school. Each module includes hands-on investigations to help learners understand the importance of healthy soil and thriving plant...

Students will learn about the role of the six most important electrolytes in the body, and then study the disorders associated with abnormally high and low levels of these electrolytes.

In this instructional activity, students will learn that minerals are a necessary part of our diet. They will learn that different minerals have different functions in the body. More specifically, they will discover that iron is...

Find out what the human body needs to function at its best, and why.