Students examine actual radioactive decay data collected in an honors chemistry class to find an equation which best fits the data and allows a person to predict the count after certain periods of time have elapsed. Students review all...

Students will use examples and an interactive graph to explore exponential functions such as growth and decay.

A scientific study has shown that chewing Big Red Gum reduces mouth microbes. Cinnamon oil in gum is a natural defense against mouth bacteria that cause tooth decay and bad breath. Conduct an experiment to compare products with cinnamon...

In this activity, students gain a better understanding of radioactive dating and half-lives by using M&Ms to demonstrate the idea of radioactive decay. They will be able to see how scientists can determine the age of rocks by looking...

In this activity, learners will review and investigate the stability of the nucleus of various elements and determine factors that affect that stability. Students will get an understanding of why certain nuclei are unstable and what type...

In Spanish. In this interactive unit learn how to calculate intervals of growth and decay, maximum and minimum value of a function, the intervals of concavity and convexity and the turning points of a function.

How old is an object? Willard Libby found that the amount of carbon-14 decay found in an animal or plant could be used as a gauge of how long it had been dead.

This is a good source for getting an in-depth description of using radioactive decay to measure the ages of rocks. In addition to describing the process of radiometric dating, this resource also includes a geologic time scale and four...

This site provides a great series on the neutron discovered by James Chadwick. Includes a seven-page series that covers what is inside the nucleus, the elusive neutron, beryllium radiation, Chadwick's discovery, neutrons from beryllium,...

Enrico Fermi was a titan of twentieth-century physics. He outlined the statistical laws that govern the behavior of particles that abide by the Pauli exclusion principle and developed a theoretical model of the atom in his mid-twenties....

Sexton beetles are the undertakers of the beetle world. They are attracted to the corpses of small mammals and birds by sulfur chemicals given off during decay. Learn more about sexton beetles in this well-constructed overview produced...

By the late 1960s, issues of unchecked land development, urban decay, and air, noise, and water pollution came to Americans' attention. In November 1971, the newly created Environmental Protection Agency (EPA) announced a large-scale...

Explains how exponential functions have applications in real-world scenarios, including a population of a city, the growth of bacteria, drug decay, and compounding interest. Includes four word problems to try, with hints and answers...

Read statistics about the consumption of soft drinks in America by teens and how soda can affect one's health. Includes information on how soft drink are related to diabetes, obesity, tooth decay, and more.

Everything you need to know for maintaining proper dental care including how to brush, what makes strong teeth, what causes decay, and the three types of teeth.

The Earth has been in a state of continual change since its formation. The major part of this change, involving volcanism and tectonics, has been driven by heat produced from the decay of radioactive elements within the Earth. The other...

This program was designed as a quick graphing program that students could use on a computer, tablet or smart phone when a more complex graphing program is not available. This program will let students plot up to 10 data points and then...

A biography on physicist Chen Ning Yang that focuses on his work with Tsung-Dao Lee in which they proved that parity is violated when certain elementary particles decay. The biography also touches upon his education, scientific work, and...

This task provides a real-world context for examining the power of exponential growth and decay. Students experiment, at the macro level, using scotch tape to pull a chip of graphite apart into two pieces. They are asked to find about...

Learn about exponential functions by graphing various equations representing exponential growth and decay. Graph these functions by connecting ordered pairs on x-y axes.

An overview of the nitrogen cycle, covering nitrogen fixation, decay, nitrification, denitrification, and more.

[Free Registration/Login may be required to access all resource tools.] This lesson explains the processes of nuclear fission and nuclear fusion. Includes simulations on nuclear fission and on isotope decay.

This lesson focuses on randomness; it explains that what we often think of as random is only random because we do not have the tools to make better predictions. However, true randomness does exists -- at the very foundations of matter. A...

The Great Wall of China is a 13,000-mile dragon of earth and stone that winds its way through the countryside of China. As it turns out, the wall's history is almost as long and serpentine as its structure. Megan Campisi and Pen-Pen Chen...