The site explains exponential functions and characteristics of their graphs.

An interactive tutorial on half life. Very readable and has a little extra for the advanced student.

This activity is designed for students to examine soil and determine which soil will be the best for plant growth. The students will also investigate the effect of sunlight on plants and the importance of sunlight in producing chlorophyll.

Some basic, but quality logarithm information.

A visual description of the concept of half life. Complete with an interactive graph.

This article tells all about what happens when you go to the dentist.

[Free Registration/Login may be required to access all resource tools.] In this lesson students will be identifying, applying, and solving exponential models manually and with technology. Students examine guided notes, review guided...

Scholars examine applications of differential equations. Examples explore how differential equations are used to model population, Newton's law of cooling, and engineering systems.

In this activity, students use popcorn to simulate the process scientists use to date layers in an ice core.

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...

This lesson focuses on food chains in ecosystems, including levels of consumers, decomposers, and a list of common words used with food chains and their definitions. It also provides a link to an assessment.

This problem introduces Carbon 14 dating which is used by scientists to date certain organic material. This version is based on the ratio of Carbon 14 to Carbon 12, which decreases at a constant exponential rate after an organism dies....

Logarithmic word problems generally involve evaluating a given logarithmic equation at a given point, and solving for a given variable; they're pretty straightforward. This resource contains worked examples to demonstrate the reasoning...

Given a function that models an exponential situation, find the factor by which the quantity changes per unit time interval. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Given a verbal description of the rate of change of a real world situation, find the exponential function that models it. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...

[Free Registration/Login may be required to access all resource tools.] Learn about developing exponential growth models. Here you will explore the use of Algebra to match mathematical models to observed data from real-life situations.

[Free Registration/Login may be required to access all resource tools.] In this lesson students devise a problem-solving strategy to solve real-world problems involving exponential functions. Students watch a video tutorial, explore...

In this instructional activity on rational exponents, students explore how-to transform expressions with exponents.

Discussion of ways to create new elements of increased atomic number and thus to create ever more massive elements that are not found on Earth.

A brief examination of the Chart of the Nuclides and unstable nuclei.

This interactive audio book provides a simple overview of how to use radioactive substances. Find links to numerous chemistry animations, power points, and tutorials.

This site provides formulas and examples that deal with Nuclear Chemistry. It also has practice problems.

See interesting pictures and read explanations of the different types of wood rotting fungi.

Learn about composting, and find our how it helps connect people to the Earth's natural processes.