91 Résultats pour : « Science First »

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This generator can perform all electrostatic experiments on a spectacular scale.

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The Sunspotter Keplerian Telescope lets users safely view the light of the sun.

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Be Prepared For Your Electrochemistry Experiments

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This simple lab enables students to build a telescope that is similar to Galileo’s.

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This device shows how the sun's appearance changes over a period of one month.

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Create Dramatic Electrostatic Effects

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Estimate stream quality as it relates to solids in the water.

This Turbidity Tube is made from 1-³/₄" (4.4 cm) clear polycarbonate tubing and is marked with easy to read black numbers on a white tape; tape is marked in centimeters. A drain tube with a crimp are supplied so the sample can be drained off until the Secchi pattern on the bottom just appears. The height of the water column is then recorded. Overall length of the tube is 24" (61 cm).

The optional Transparency Tube (item #67311-46) allow you to measure turbidity in streams where a secchi disk can't be used--simply fill the tube with water and look down. Each clear polycarbonate tube features a centimeter scale on one side and a secchi disk design, 2" (4.5 cm) in diameter, on the bottom. The secchi design is screwed to a rubber stopper that removes for cleaning. Drain the tube with the drain hose and attached finger crimp. Ideal for the GLOBE program!

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Thsese tubes meets GLOBE requirements.

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Ptolemaic Planetary System Model.

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Study different concepts utilizing sunlight or darkness.

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For Consistent Readings Underwater

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Clear Measurements in Classic Study of Electrons

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Has All the Components Necessary to Start Collecting Samples Right Away

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Stacking Set for Simple Storage

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Nets allow horizontal or vertical tows for plankton analysis.

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This bottle is excellent for near off-shore (to 200 m) trace metal sampling, since there are no metal parts to touch the sample.

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Water sampler for samples of lake, river, or stream water.

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Convienent Classroom Farming.

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Introductory Planetarium is a simple model for hands-on demonstrations.

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An Essential Piece of Equipment for Any Earth Science Class

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The Perfect Introduction to Temperature and Conduction.

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Explore the relationship between acoustical tones and the physical circumstances that give rise to them

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Observe absorption lines in the Sun's spectrum, the spectra of energized elements in gaseous states and the double yellow lines of Mercury vapors in the spectrum of a fluorescent lamp.

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Explore Relative Age Dating.

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Produce constant acceleration with this fan cart.

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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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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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Conduct Colorful Optics Experiments