| Eggs_Across_the_Net 2002 Class to class project involving raw eggs. Results are posted on the web. |
| Exploring_Data Curriculum support resources for data exploration and introductory statistics. Looks at science data in the context of graphs and statistics. |
| Fun_Science_Gallery Activities and experiments devoted to the amateur scientist. Teachers and students also will find it useful. |
| Helge_Rustad\'s_Homepage Descriptions and documentation of a weather station and other hobby projects. |
| Home_Experiments A collection of experiments you can try at home. |
| Jerry\'s_Electronic_Plans,_Kits_and_Curious_Things Electronic plans and kits. |
| Kids\'_Science_Projects_at_The_Science_Club Grouped by level of difficulty and technical prowess as simple, medium, or advanced. |
| Lab_Dad\'s_Laboratory Science labs and experiments in numerous science fields. |
| The_Latest_in_Home_Edu-tainment__The_Science_Lab Suggestions for lesson plans, activities, and lab projects for teaching science at home. |
| LeisureIdeas Easy science experiments and demonstrations to do at home using readily available materials. |
| Nexus_Research_Group_-_NPBHS New Zealand's only High School based research lab. Volunteers become part of on-going scientific investigations as a researcher, programmer or technician. Interactive pages and fun experiments availab |
| Objective_Design_of_Experiments Commercial software to guide experiment design. |
| PASCO_Science_Experiments Covering physics, biology, chemistry, earth science, environmental science, and middle school science. |
| Radiation_Detection Interesting experiments one can perform with homemade radiation detectors, and how to build them. |
| Science_Experiments_Using_Data_Loggers_and_Oscilloscopes A library of physics, chemistry and biology experiments. Examples include measuring the speed of sound, pH of drinks, magnetic induction and the discharge of batteries. |
| Science_Experiments_You_Can_Do A number of reasonably simple experiments and demonstrations that can be performed by kids, teachers and hobbyists. |
| Science_Explorer__Exploratorium Offers many easy-to-do experiments, from creating volcanos to tiny sparks. |
| Science_Fair_and_Project_Ideas A collection of 1850 ideas for science projects and ideas, the site offers advice on undertaking a project, the types of projects, and advice on completing this type of task |
| Science_Hobbyist A growing collection of papers on physical science projects for all ages. |
| Science_made_simple Science projects and experiments. |
| Science_Pioneer Contains experiments for all ages. Science links and project examples. |
| Science_Playwiths Simple science experiments for fun. |
| Science_Project Science projects and kits for all ages. Membership required to view most projects. |
| Science_Toys How to make toys (and projects) that demonstrate scientific principles using simple tools and equipment. |
| Solar_Electric_Panel_Plans Do it yourself instructions for building a low cost, high output, commercial quality, photovoltaic panel for science experiments |
| Some_Things_Dissolve_and_Some_Do_Not Providing instructions for three simple experiments, and links for seventeen lesson plans, the site concentrates on solubility concepts. |
| Vicki_Cobb\'s_Science_for_Kids Some experiments to do. Books which includes these experiments are for sale on the site. |
| Wonderama___Explorations_in_Science_Education Wonderama is a Lansing based company providing assembly and hands-on programs in science and math to students in Michigan. |
| Agrichemical_and_Environmental_News A monthly newsletter of pest management, and environmental issues from Washington State University. Includes IPM, biocontrol, organic, and chemical management of weeds, diseases, insects, and other cr |
| Agrochemical_Discovery__Insect,_Weed,_and_Fungal_Control Applications in modifying plants to provide their own crop protection or enhanced yield and quality are discussed. |
| Alternatives_in_Insect_Pest_Management Provides background information and evaluation of the safety and effectiveness of several alternative products and practices. |
| Animal_and_Plant_Health_Inspection_Service_(APHIS) Part of U.S. Department of Agriculture. Site provides extensive information on animal and plant health/disease topics, USDA regulations, control of invasive species, agricultural chemicals, and relate |
| Biting_Flies Offers flytraps, as an effective and environmentally friendly way to reduce horse fly and deer fly populations. Wisconsin. |
| Center_for_Plant_Health_Science_Technology The scientific support organization for the Plant Protection and Quarantine (PPQ) division of the Animal and Plant Health Inspection Service (APHIS). Works to identify and evaluate pathways used by in |
| Consortium_for_Integrated_Management_of_Stored_Product_Insect_Pests Proposals, reports and results of a project funded by the USDA to develop technologies for stored product insect management. |
| Department_of_Entomology_at_Volcani_ARO Descriptions of the research undertaken in insect management, taxonomy, ecology, toxicology and control. |
| Ecologically_Based_Pest_Management Describes cultural and biological pest control methods. |
| Entomology_Program_and_Laboratory Research related to pest insects in the southwest Florida agricultural community at the Southwest Florida Research and Education Center of the University of Florida. |
| Environmental_Pest_Control Biological alternatives to the use of poisonous chemicals. Site provides contact details. |
| Featured_Creatures Large collection of information sheets on insects, arachnids, and nematodes occurring in Florida, arranged by common name, scientific name, and crop or habitat. |
Beakman'sElectric Motor 
Figure: Motor1.gifI saw this on the TV show Beakman's World and I was very impressedthat you could actually build a working electric motor with so few parts.I built one and brought it to work where it was a big hit with all theengineers around here. This writeup was for a friend of mine who wantedinstructions that his son could follow for a science fair project. So,if you missed the show, here's how to build one. If you are using a textonly browser, you can click on the "Figure" links to downloadthe drawing s (GIF files). BTW, my friend's son won second place in theschool's science fair. 
Simple Electric Motor - An award winning science fair project on the construction of a really neat brushless DC motor. Has complete constructions plans as well as a kit you can buy containing all of the materials necessary to build the motor.Bizarre Stuff You Can Make In Your Kitchen - A great assortment of easy science projects, including other (more complicated) electric motors!Beakman's Electric Motor en Espaniol - This is an improved translation, thanks to a reader from Barcelona!AltaVista Translations - Translate this page (or any other page on the web, or any phrase) between English, Spanish, French, German, and Portugeuse. Very, Very, Cool!Math Flash - A math flash card program for WindowsHow It WorksTroubleshooting TipsMaterials Required:One 'D' Cell Alkaline Battery One Wide Rubber Band Two Large Paper Clips One Rectangular Ceramic Magnet Heavy Gauge Magnet Wire (the kind with red enamel insulation, not plasticcoated) One Toilet Paper Tube Fine Sandpaper Optional: Glue, Small Block of Wood for Base Instructions:Starting about 3 inches from the end of the wire, wrap it 7 times aroundthe toilet paper tube. Remove the tube (you don't need it any more). Cutthe wire, leaving a 3 inch tail opposite the original starting point. Wrapthe two tails around the coil so that the coil is held together and thetwo tails extend perpendicular to the coil. See illustration below: 
Figure 1: M1.gifNote: Be sure to center the two tails on either side of thecoil. Balance is important. You might need to put a drop of glue wherethe tail meets the coil to prevent slipping.On one tail, use fine sandpaper to completely remove the insulationfrom the wire. Leave about 1/4" of insulation on the end and wherethe wire meets to coil. On the other tail, lay the coil down flat and lightlysand off the insulation from the top half of the wire only. Again, leave1/4" of full insulation on the end and where the wire meets the coil. 
Figure 2: M2.gifBend the two paper clips into the following shape (needle-nosed pliersmay be useful here): 
Figure 3: M3.gifUse the rubber band to hold the loop ends (on the left in the abovedrawing) to the terminals of the "D" Cell battery: 
Figure 4: M4.gifStick the ceramic magnet on the side of the battery as shown: 
Figure 5: M5.gifPlace the coil in the cradle formed by the right ends of the paperclips. You may have to give it a gentle push to get it started, but itshould begin to spin rapidly. If it doesn't spin, check to make sure thatall of the insulation has been remove d from the wire ends. If it spinserratically, make sure that the tails on the coil are centered on the sidesof the coil. Note that the motor is "in phase" only when it isheld horizontally (as shown in the drawing).For display, you will probably need to build a small cradle to holdthe motor in the proper position. It might also help to bend the ends ofthe coil a bit so that as it slips right or left, the bends keep it inthe proper position: 
Figure 6: M6.gifHere is a diagram of the finished motor: 
Figure 7: motor.gifFurther Experiments:Since this is an existing design, you might want to do some furtherexperiments to make it more of a Science Fair experiment instead of justa model. Here are some suggestions:Try to adjust the phase angle of the motor so that it will operatein a vertical position. This involves removing a different area of insulationfrom the partially bared tail of the coil.Try making different shaped coils and seeing how they work. Is thecircle the best shape? Try squares, ovals, etc. Make a display showingeach of the coils you tried with a short summary of the results underneaththem.Try varying the number of turns of wire in the coil. I don't know wherethey came up with seven. Does even or odd number of turns matter? Doesthe number of turns determine the speed? Again, include the different coilsin the display and describe the results.How long can you get the motor to run before it falls off the cradle?Turn the coil slowly by hand and feel the magnetic attraction at eachposition of the coil. Make drawings showing the different coil positionsand describe how the attractions vary at each position.HARD ONES: Can you think of an interesting way of determining the speedof the motor (in RPM)? Can you make the motor do any work?Final Notes:You can get the magnet wire and ceramic magnets at Radio Shack. I thinkthe wire comes in a pack of three spools of different gauges, you wantto use the medium gauge, not too heavy, but thick enough to hold its shape. Be sure to bring a fresh (extra) battery to school with the project.You should include the Beakman's World show in your bibliography.Back to my Home PageSign my guestbook!