Fascinating pickle facts
Each of this feature's nine paragraphs describes a fact about food produced through fermentation around the globe. The facts present a mix of history and science. For example, one paragraph explains how pickles were instrumental in Spain's discovery of America, while another reveals why modern-day outdoor fermentation vats are intentionally left uncovered. Another paragraph summarizes how osmosis and the bacteria involved in pickling can make vegetables more vitamin-rich. In addition, historical
What's a quick way to unroll a roll of toilet paper? This material is part of a series of hands-on science activities designed to arouse student interest. Here students use Bernoulli's principle and an electric leaf blower to force air over the top of the toilet paper to quickly unroll it. The activity includes a description, a list of science process skills and complex reasoning strategies being used, and a compilation of applicable K-12 national science education standards. Also provided are c
Developing Alternative Assessments using the Benchmarks
Written from the perspective of a classroom teacher, this article describes a process for developing alternative assessments, provides examples of alternative assessment tasks and student responses, amd illustrates the use of scoring rubrics. The examples use the AAAS Benchmarks for Science Literacy and the National Science Education Standards to identify learning goals. This resource is intended for use in the classroom by K-12 teachers.
PBS provides students in grades 4-7 with oodles of science fair ideas and a science fair tip sheet in this section of the DragonflyTV web site. Overviews of investigations from the television show are offered to help students hone in on an interesting topic and create their own science fair project. Each overview relays a question that a child asked on television, the main steps in his or her experiment, and the results. The overviews also include ideas for further investigations that build on t
Factsheets emphasize the meaning of place value in division, the concept of division as repeated subtraction, division by 10 and 100, and well explained examples of both short and long division. A game as well as worksheets and quizzes are provided for practice.
This is a simple activity to visualize a communication system. In order to do this the students encode, decode, transmit, receive and store messages. They will use a code sheet and flashlight for this process. They will also maintain a storage sheet from which they can retrieve information as and when it is required.
Science News For Kids
This resource is meant to enhance the usefulness of Science News in the middle-school classroom and offer recreational reading and activities for students interested in science. It is comprised of six zones: a weekly brainteaser for those who enjoy solving and inventing puzzles, entertaining science-fiction composition exercises for those interested in writing, and weekly science fair profiles and tips. The GameZone contains a small selection of logic and memory games, implemented as Java applet
This web page offers basic illustrated information about Pythagoras and the famous equation he and his followers are credited with developing. The page contains a link to an applet that demonstrates the meaning of the equation. From the applet, links to three problems show the equation's application in baseball, scaling a wall, and in construction. This web page requires the student know what a right triangle is and how area is measured. Copyright 2005 Eisenhower National Clearinghouse
This applet allows the user to make pie charts.
Agricultural biotechnology FAQs
This resource from the U.S. Department of Agriculture list a number of frequently asked questions regarding biotechnology. The FAQs addresses questions related to defining biotechnology, biotechnology helping farmers and consumers, public dialogue and exchange of information on biotechnology, federal agencies that regulate biotechnology, testing a biotechnology derived plant, commercial production of a biotechnology derived plant, exposure of biotech crops, the role of the EPA (Environmental Pro
Tides and gravity labs
How does gravity cause tides in the oceans? This section, part of an interactive laboratory series for grades 8-12, introduces students to four activities on tides and gravity that cover critical orbital speed between Earth and the moon, gravitational forces between two bodies, tidal effects from the sun and moon, and the change in tidal levels over time. The activities include hands-on animations of concepts whose variables can be manipulated by students. Questions posed to students include ans
Science Sampler : Rockin' around the rock cycle
The following inquiry-based activities were designed as part of a unit intended to aid students in understanding the rock cycle, with the assumption that, after being taught the lessons in the unit, students would have gone beyond a rote memorization of the rock types and rock cycle. The ultimate goal of this hands-on lesson is that students will know and be able to discriminate between them.
Learn about the chemical reactions that take place when things burn in this interactive activity from the NOVA Web site.
Ready, Set, Escape
During this project, students will be asked to design a device that will measure out a time period of exactly 3 minutes. They will be asked to brainstorm ideas using the different materials provided. Students will observe and explain the effects of conservation of energy.
Stomachion -- from MathWorld
The stomachion is a 14-piece dissection puzzle similar to tangrams. It is described in fragmentary manuscripts attributed to Archimedes as noted by Magnus Ausonius (310-395 A.D.). The puzzle is also referred to as the loculus of Archimedes (Archimedes' box) or syntemachion in Latin texts. The word stomachion has as its root the Greek word \sigma\tauo\mu\acute\alpha\chi\iotao\nu, meaning stomach. Note that Ausonius refers to the figure as the...
Observe how air pressure affects a rising balloon
This animation enables students in high school Earth science classes to observe how atmospheric pressure changes with respect to altitude. Students are instructed to click and drag a lever to move a balloon between altitudes of 5,000 and 30,000 feet. A pair of gauges indicates the volume in the balloon and the atmospheric pressure at each elevation. The legend indicates that the concentration of air molecules decreases with increasing altitude. Copyright 2005 Eisenhower National Clearinghouse
Area of Parallelograms : Activity A
Examine and manipulate the graph of a parallelogram or triangle and find its area. Explore the relationship between the area of a parallelogram and the area of a rectangle using an animation.
The inclusive classroom : mathematics and science instruction for students with learning disabilitie
This electronic document contains a PDF version of a booklet for K to 12 teachers that focuses on the educational needs of students with learning disabilities in inclusive classrooms. It is estimated that about half of all primary grade classes and about one-third of all secondary mathematics and science classes include students with learning disabilities. The booklet is part of the IT'S JUST GOOD TEACHING series produced by the Northwest Regional Educational Laboratory. Each booklet in the seri
Idea Bank : Joining the Search for Extraterrestrial Intelligence
Would you like to get your students involved in an authentic search for extraterrestrial intelligence? The SETIhome project is an ongoing science experiment harnessing the power of computers via the internet. The project is a great inspirational tool that involves students in the thrill of science and motivates them to learn more about the astronomy, mathematics, physics, biology, and technology involved in the search for intelligent life in the universe.
Science 101 : How Do Microscopes Work?
Microscopes allow scientists to examine everyday objects in extraordinary ways. They provide high-resolution images that show objects in fine detail. This articles includes details on how microscopes work and how they enhance the scientific process.