91 Résultats pour : « Science First »

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Illustrate the Relationship Between Karyotyping and Genetic Diseases

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Depicts the Most Prominent Fraunhofer Lines and Their Wavelengths

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Engineer an Unmanned Aerial Vehicle.

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Large scale model of Young's double slit experiment.

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View Spectra with an Accuracy of ±1 Nanometer

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Unique Shapes Challenge Students’ Assumptions

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Graphically illustrate the fact that like charges repel each other.
The multi-colored ribbons are connected to a suction cup that sits on top of a Van de Graaff generator. As the generator operates, the ribbons accumulate a charge and stand on end.

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The Project STAR Class Set is designed to accommodate 10 students with numerous astronomy activities that can be used throughout the year, in class or at home.

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This is the grab to choose for soft, finely divided littoral bottoms that are free from vegetation, such as sticks and decayed leaves (or with short, erect vegetation only). Also suitable for intermixtures of sand, stones, and other coarse debris.

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Self-righting yet rugged.

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Prepare your students for the Great American Eclipse.

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Acetate Strips

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Clearly shows the path of the sun at any latitude during any month of the year.

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Produces circular waves from either one or two point sources. The phase relationship is continuously adjustable. A variable, low voltage power supply, such as our 64250-10, allows the speed to be adjusted also. Securely mounted in a molded housing with four non-skid, shock-absorbing feet.

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Simple to operate and easy to use, this economical wind vane clearly provides current wind direction. Its heavy cast base and sturdy post support a sensitive cone bearing assembly that responds to even the slightest wind. Place the “N” portion of the wind vane in the northern position and read off the direction shown by the pointer.

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Demonstrate that a charge cannot exist inside a conductor and re-create Faraday’s classic 'Ice pail' experiment with this kit.

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Conduct Colorful Optics Experiments

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A Perfect accessory for the Electrostatic Generator

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The Variable Speed Wave Generator is a new concept for generating waves in your stream table. The paddle enters the water, forms the wave, then is withdrawn to eliminate back waves.

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Made of heavy paper, the models can be positioned to show their relation to one another at any given time of the year.

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Explore properties of light with primary and secondary colors.

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Color-Coding for Easy Identifications

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Smaller Size for Benthic Invertebrates

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Seeds germinate successfully when the soil is the right temperature. This virtually indestructible thermometer gives readings of -15 to 65°C with easy-to-read numbers.

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Seasonal changes, the positions of sunrise and sunset and the special circumstances of solstices and equinoxes are easily demonstrated and examined.

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Formulate Compounds and Test Physical Properties.

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Snap together beads.

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Connect Engineering and Earth Science.

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Twenty-one hands-on activities are included in this 176-page spiral-bound book.

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For Demonstration And Display