Magnifying Glass, 4", 2.5X Lens

The large 3" diameter of this magnifier makes for convenient viewing.

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The perfect lab thermometer for science experiments! It has a range from -20 to 110 degrees Celsius and 0 to 230 degrees Fahrenheit.

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All our lenses and circular mirrors are 38 mm in diameter. The focal length (f/l) is noted for each.

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A compass for hiking, orienteering, or locating stars! This orienteering compass has 2° graduation lines and a jeweled bearing. It's waterproof, anti-static & includes a declination scale & map reading scale (in & mm).

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Everything you need for test tube experiments! This set contains 6 glass test tubes, a rack, cleaning brush, stoppers, and clamp.

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All our lenses and circular mirrors are 38 mm in diameter. The focal length (f/l) is noted for each.

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When working with chemicals or projectiles that can splash or enter the eye, it's important to develop a habit of always wearing the proper eyewear. These wraparound, impact-resistant safety goggles are an excellent choice!

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This piece of dialysis tubing can be opened up to form a sheet of semi-permeable membrane that is 3-1/2" wide by 12" long.

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A 2' section of flexible clear vinyl tubing.

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This Lugol's iodine solution stains carbohydrates in plant & animal specimens brown or blue-black & stains glycogen red. An aqueous solution of 1.8% iodine & 3.0% potassium iodide. Lab grade; not for food or medical purposes.

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