Can Gases Act as a Greenhouse?
In this lab, students will infer a potential for increasing levels of atmospheric carbon dioxide leading to global warming by contrasting the temperature rise in a CO2 rich atmosphere to that of normal air when both environments are exposed to a bright light in a controlled experiment.
Explore size estimation in one, two and three dimensions! Multiple levels of difficulty allow for progressive skill improvement.
Ancestors in the Americas
These classroom guides have been designed to help educators use the ANCESTORS IN THE AMERICAS series and companion web site in history, geography and social studies classes (grade levels 9-12). The lesson plans may also be adapted for use as stand-alone exercises. The ANCESTORS IN THE AMERICAS companion Web site helps to round out the stories and ideas presented in this groundbreaking series. Visit the Asian American Timeline to learn about specific moments and events that shaped Asian America
ICT policy, advocacy and the digital divide
The ICT Policy for Civil Society training materials build the capacity of civil society organisations to understand policy and regulation related to information and communication technologies (ICT) so that they can begin to engage and influence policy processes affecting ICT adoption and implementation at national, regional and global levels.
High levels of ultraviolet light can be harmful to many biological systems, as this higher energy radiation has a mutagenic effect on plant and animal cells.
This lesson discusses population growth, both in the United States and in the world. Topics include factors that influence population growth, such as government policy, religion, education or economic levels, and energy use per capita.
Education and Earnings: Does Education Pay?
Overall, we see that even when controlling for occupation, gender continues to affect earnings: women make less than men. In this exercises, students will examine the influence of education on earnings. Do higher levels of education lead to higher earnings?
Marriage and Divorce
This activity provides a look at marriage and divorce among different race/ethnicity, ages, education and income levels over time.
Comparison of flower constancy and foraging performance in three bumblebee species (Hymenoptera: Api
The three bumblebee species Bombus terrestris (Linnaeus 1758), Bombus lapidarius (Linnaeus 1758), and Bombus pascuorum (Scopoli 1763) showed consistent differences in their respective levels of flower constancy when foraging on three different pairs of flower species. B. terrestris was always the most flower constant, followed by B. lapidarius, with B. pascuorum the least flower constant species. These interspecific differences in flower constancy were related to foraging performance under field
The applets in this section of Statistical Java allow you to see how levels of confidence are achieved through repeated sampling. The confidence intervals are related to the probability of successes in a Binomial experiment.
Using data from the National Climate Data Center (NCDC) track snowfall in your area and assess snowfall levels from the Winter Olympics.
Global energy use increases by the day. Polluting the atmosphere with ever more carbon dioxide is not a viable solution for our future energy needs. Can new technologies such as carbon sequestration and ethanol production help provide the energy we need without pushing the concentrations of CO2 to dangerous levels?
How to Put Out a Grease Fire
A short video that does an excellent job of explaining how to put a grease fire out. A must view for all age levels.
Matricism -part 1
The invention and use of a robotic system to create a painting in oils on canvas. Executed with small units or dabs of medium, the texture, pattern, and color geometries can play equal parts in expressing myriad levels of conciousness, abstraction, thought, motion, or being — beyond the obvious subject of the work.
A United Streaming Video. Said by the 16th President of the United States Of America, Abraham Lincoln. Do you need to memorize the Gettysburg Address or maybe just want to hear the words again? It doesn't matter, this video is to let you know the Gettysburg Address. Pictures are used as the background to the reading of the Gettysburg Address. Video is of great quality and good for all elementary grade levels.
Measurement: The Foundation of Chemistry
The distinction between accuracy and precision and its importance in commerce and science are explained. Numerous examples of real world use of chemical measurement are shown. Various equipment is used to demonstrate specific levels of precision.
Schizophrenia: Pharmacological Treatment
Dr. Arnold Scheibel reviews the various ways in which schizophrenia has been treated since the 1950s, ranging from the use of physical restraints and cool baths to the administration of antipsychotic drugs. He and other psychiatrists elaborate on the ways in which drugs alter the chemistry of the brain. Drugs that are effective seem to reduce the levels of dopamine in th
Living With Amnesia: The Hippocampus and Memory
Amnesia appears in many different forms. This module shows how the extent and location of damage can result in varying levels of memory impairment. Footage of Mike, an amnesic individual, demonstrates the result of an injury to the hippocampus. Mike’s reaction to his memory deficit and drastic coping measures underscore the importance of memory to everyday functioning.
In certain situations, microbial control is a necessity. For instance, our food system requires sanitary conditions and hospitals require sterilization techniques. Here we see the options available for various levels of microbial control.
Treating Drug Addiction: A Behavioral Approach
Provides an example of how drug therapies incorporate the results of research on several levels of behavior, and shows how patients learn to deal with environmental triggers for cravings.