University of Wisconsin-Madison: What is the Ultimate Fate of the Universe?
This website, created by Molly Read for the Observational Cosmology Group at the University of Wisconsin-Madison, discusses the ancient questions about the development of the universe, its limits, and its fate. After reading a brief history of the field of cosmology, students and educators can learn about Olbers' Paradox, Hubble Expansion, the big bang theory, electromagnetic spectrum, and cosmic microwave background. The text contains many helpful diagrams, images, short videos, and links to a
What You Always Wanted to Know About Salt
The What You Always Wanted to Know About Salt Web site is maintained by the nonprofit organization the Salt Institute. Information on nearly every aspect of salt can be found here, including salt facts, properties of sodium chloride, salt deposits in the US, the various uses of salt, salt in the winter, the history of salt, and much more.
Straining out the Dirt
In this activity, students build a water filter with activated carbon, cotton and other materials to remove chocolate powder from water.
Surfactants: Helping Molecules Get Along
Students learn about the basics of molecules and how they interact with each other. They learn about the idea of polar and non-polar molecules and how they act with other fluids and surfaces. Students acquire a conceptual understanding of surfactant molecules and how they work on a molecular level. They also learn of the importance of surfactants, such as soaps, and their use in everyday life. Through associated activities, students explore how surfactant molecules are able to bring together two
Pointing at Maximum Power for PV
Student teams measure voltage and current in order to determine the power output of a photovoltaic (PV) panel. They vary the resistance in a simple circuit connected to the panel to demonstrate the effects on voltage, current, and power output. After collecting data, they calculate power for each resistance setting, creating a graph of current vs. voltage, and indentifying the maximum power point.
In this activity, students act as environmental engineers involved with the clean up of a toxic spill. Using bioremediation as the process, students select which bacteria they will use to eat up the pollutant spilled. Students learn how engineers use bioremediation to make organism degrade harmful chemicals. Engineers must make sure bacteria have everything they need to live and degrade contaminants for bioremediation to happen. Students learn about the needs of living things by setting up an ex
Edd Presnell: Dulcimer Maker
Edd Presnell, a mountain craftsman and native of Watauga County, North Carolina, demonstrates and comments on the construction of a dulcimer. Presnell learned his craft from his father-in-law. Film includes a brief performance on a finished dulcimer by his wife, Nettie. This 16mm film is archived in the Thomas G. Burton and Jack Schrader collection in the Archives of Appalachia, East Tennesse State University.
Arts & Crafts, Traditional, Work / Appalachia / 1973
Investigating Organizational Dimensions of Middle School Curricular Leadership: Linkages to School E
This study explores the organizational nature of curricular leadership in middle schools.,Volume 26, Number 1
Teaching Middle School Life Science
Teaching Middle School Life Science is a graduate-level professional development course designed to enhance your understanding and teaching of life science. In eight sessions, you will investigate life science topics using hands-on activities and online resources including video segments, interactive activities, readings, and other multimedia materials. These resources are drawn from Teachers' Domain, WGBH's digital library service.
Rock Around the Clock
In this activity, students will explore probability simulations and use the Monte Carlo method to determine a reasonable number of packs of gum that need to be purchased to win a complete set of prizes.
Scope on Safety: Science storage requirements
Middle school science teachers need to address two issues concerning storage. First, if it is insufficient, they need to work with administrators to secure additional storage area(s). Second, whether sufficient or not, good housekeeping practices are in order for safety and liability reasons. This month’s column outlines some safe storage and housekeeping hints for the science classroom.
Titan Beetle--An Overview
This short video gives excellent real life, close up footage of a Titan Beetle. Probably the largest insect in the world, the adult titan beetle,Titanus giganteus, cuts an imposing figure. The adult beetle has a flattened body, long, soft wing cases covering a large abdomen, and long spiny legs. The mouthparts, or mandibles, are narrow, powerful, and distinctly longer than the head. This is a great resource to help build background knowledge and to help make real world connections
Date a Rock
This lesson shows students that age-dating rocks involves counting atoms and comparing the counts. Students use simulated rock samples, which show a highly magnified selection of 128 atoms, each sample with a different proportion of the atoms of two different elements: a parent radioisotope, and its daughter product. By counting the parent radioactive atoms and knowing the half-life of those atoms, students can figure the number of half-lives since the sample solidified, and therefore the age of
Examine animations of fault motion
Developed for high school students, this Earth science resource provides animations of each of four different fault types: normal, reverse, thrust, and strike-slip faults. Each animation has its own set of movie control buttons, and arrows in each animation indicate the direction of force that causes that particular kind of fault. The introductory paragraph defines the terms fault plane, handing wall, and footwall--features that are labeled at the end of the appropriate animations. Copyright 200
Graphic Design: Using Symmetry to Create Corporate Logos
This activity teaches students to describe three types of symmetry, to categorize symmetric figures based on type of symmetry, and to create figures using different type of symmetry. The activities use familiar logos and signs to show how symmetry is used in the world of design, and to help differentiate between the different kinds of symmetry used in these examples.
Climate Change: Connections and Solutions, Grades 6-8
This two-week interdisciplinary curriculum unit encourages students to think critically about climate change and to collaborate to devise solutions. Students learn about climate change within a systems framework, examining interconnections among environmental, social, and economic issues. Lessons are aligned with national science and social studies standards but may be used in other classes as well. The first week of this 2-week unit lays the foundation for understanding some of the forces behin
Shopping Mall Math
Students participate in activities in which they develop number sense in and around the shopping mall. Two sets of activities, one developed for younger middle-grade students and one for older, deal with size and space, estimation, measurement, and applications involving percent.
Concurrent Lines, Medians, and Altitudes
Explore the relationships between perpendicular bisectors, the circumscribed circle, angle bisectors, the inscribed circle, altitudes, and medians using a triangle that can be resized and reshaped.
Student Perceptions of Action, Relevance, and Pace
How do teachers know their students are engaged? The results of a study in which middle school students' perceptions of academic achievement were analyzed.,Volume 36, Number 4
If you listen closely, you can hear the sounds of a critical element in the production of silk--silkworm caterpillars dining on mulberry leaves. This episode of the two-minute radio show Pulse of the Planet focuses on how silkworms are raised. In the episode, available here in MP3 audio and text formats, a guest biochemist describes the silk farming process, noting the silkworms' dependence on large quantities of human-supplied mulberry leaves. The host points out how much silkworms grow in leng