Breckland Scientific 2021 Catalogue

Respiration - Rocks & Minerals

Respirometers

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5 BRAINLINKS ROCK CYCLE CARD GAME This BrainLinks game teaches students about different types of rock that are commonly found, the processes involved in the formation of each rock type, what they can be used for and how they are affected by weathering as well as information about the Earth’s layers and oceanic crust. Cat No. Description Price Per ESC-270-100 Brainlinks Rock Cycle Card Game 3.60 ea. INORGANIC CRYSTAL STRUCTURES - MOLYMOD® With instructions. Cat No. Description Price Per MOL-050-350 Molymod® Quartz (Silicon Dioxide) 20.13 ea. PHENYL SALICYLATE (SALOL) For demonstrating the effect of heat on the crystal size and structure of igneous rocks.For chemical info see page 42. Cat No. Description Price Per S0001265-250G Salol 26.24 250g 1 FERMENTATION LOCK Plastic airlock as used in home brewing. Using deoinised water this unit provides an airtight clean seal during fermentation. Uses a 10mm hole in cork. Cat No. Description Price Per RES-150-100 Fermentation Lock 1.99 ea. 2 CELLULAR RESPIRATION CHAMBER A simple and effective way to observe CO 2 production during cellular respiration. Samples are placed in the inner holder which keeps them above the lower reservoir containing lime water. This inner holder avoids contact between the sample and lime water and provides adequate gas circulation by means of small holes on the holder’s base. The transparent material allows perfect observation of the change in opacity. Size: 35mm (dia) x 75mm. Supplied in packs of 6. Cat No. Description Price Per PLB-030-100 Cellular Respiration Chamber 17.22 6 3 MICRO RESPIROMETER Used to study the gas exchanges during respiration. Can be used to measure the uptake of oxygen by an organism during respiration and/or the carbon dioxide evolved. The sample is placed on a grid 20mm above a reservoir of potassium hydroxide solution. The U-tube is filled with a coloured solution forming a closed loop system. The potassium hydroxide absorbs the CO 2 evolved, the liquid in the U-tube will move according to the quantity of oxygen used by the organism during respiration. The quantity of O 2 absorbed is read either directly on the printed scale or by replacement air from the graduated syringe - This provides highly sensitive measurements. Includes a rod for fixing on a retort stand. Dimensions of board (LxH): 400 x 150mm. Cat No. Description Price Per PLB-040-100 Micro Respirometer 66.20 ea. BICARBONATE INDICATOR A sensitive pH indicator that changes colour on reaction with carbon dioxide gas. Stock solution, dilute by a factor of 10 before use. Cat No. Description Price Per S0001048-500ML Bicarbonate Indicator 3.20 500ml 4 DRESCHEL BOTTLES For gas washing. The head has 8mm dia. inlet and outlet tubes and 29/32 ground glass socket and cone. Capacity: 250ml. Cat No. Description Price Per GAS-100-100 Dreschel Bottle 19.63 ea.

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Fermentation Lock

Cellular Respiration Box (Food not included!)

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Dreschel Bottle

Micro Respirometer

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Related Products... For pumps see pages 353 - 376

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Rocks & Minerals

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Brainlinks Rock Cycle Card Game

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