Along came a spider, who sat down beside her. She screamed, but RJ wouldn't smash it because spiders are a limiting factor for other insects in an ecosystem. In this video, other common limiting factors for populations are listed....

If any of the limiting factors in an environment change, both animal and plant populations also change. The video explains two different models of growth and the impact of limiting factors. It highlights the carrying capacity of an...

The carrying capacity of an environment varies based on the organisms that live there. Using a virtual lab simulation, scholars test two protists living in their own environments and a third environment where both protists live....

A change in a parameter can end in overpopulation. The resources gives pupils the opportunity to control the parameters of rabbits and wolves in a natural setting. Using the set parameters, the simulation runs and displays the population...

In this ecosystem exploration worksheet, learners complete 2 prior knowledge questions, then use "Forest Ecosystem Gizmo" to conduct several activities, completing short answer questions when finished.

How does life evolve? The interactive provides a simulation based on the Game of Life invented by mathematician John Conway. Users can run the applet with the preset rules and settings or adjust them to view whether overpopulation or...

In this exponent instructional activity, students solve ten multiple-choice questions regarding simplifying with exponents.  Solutions are provided.

In this environmental stewardship lesson, students view the human footprint website and then answer 3 short answer questions related to human impact on the earth.

In this interactive vocabulary worksheet, students read the description of educational subjects and select the subject which the sentence is describing. There are 10 questions to complete.

This online, interactive worksheet provides 21 matching questions about the industrial revolution. It covers people, events, inventions and more. Quiz-takers submit their answers and receive their score immediately.

In this online interactive English vocabulary skills worksheet, students answer 10 matching questions which require them to fill in the blanks in 10 sentences. Students may submit their answers to be scored.

In this online interactive English vocabulary skills learning exercise, students answer 10 matching questions which require them to fill in the blanks in 10 sentences. Students may submit their answers to be scored.

In this rainforest worksheet, students watch a video of Prince Charles wanting to save the tropical rainforest and then fill in the blanks to sentences about the video. Students complete 12 sentences.

An excellent interactive review from Palomar College of population growth and how it can be described. Try out the interactive calculators of population size.

Population growth simulator finding the rate of growth.

Population growth simulator with rate and time.

Explanation and examples for solving population growth problems.

How is the human population changing? This quiz covers population trends in the developed world, and the developing world. Explore the impact human population growth is having on the environment.

A series of nine maps with accompanying explanations. They show how population growth has affected the environment around the world in terms of water availability, climate change, land and forest use, and more. There are both interactive...

This video teaches the concept of Economic Growth. Economic growth refers to the ability of the economy to increase its total real output or real GDP, or its real output per person. The website contains an interactive quiz and links for...

Review accurate and up to date statistics on the population of Hispanics in the United States. Click on the different states and find how Hispanics are becoming the number one minority in the United States.

This interactive map explores the territorial and population changes in the United States between 1790 and 1850. It also covers the beginning of the transportation revolution and the Native American land cessions and forced removals.

Investigate how selection pressures and natural selection influence populations growth with this computer model. Understand how a population changes when selection pressures are in conflict. Perform the virtual lab to see what happens to...