Marina 300 Air Pump combines high performance output with quiet operation, air pump is reliable air source for a wide variety of applications for delivery of oxygen to air-operated aquarium, Operate items such as air
Funnel, Standard Stem, Material: Polypropylene, These clear funnels have long stems, smooth walls and external ribs to prevent air lock, Autoclavable, Top Outside Diameter: 150 mm, Stem Length: 110 mm, Capacity: 500 ml
Folding Quadrat, Steel Frame, Consists of 4 white coated steel rods 0.5 m long with markers at 0.25 m, For population counts and other measurements in the field
Air Puck, perfectly balanced and glides on a cushion of air for nearly frictionless motion across any smooth surface. Sturdy bumpers will survive collisions with walls, shoes, or other Air Pucks.
Atmospheric Mat with Hook, Measures 10.5 x 10.5 In, durable, thick rubber mat has a simple design that demonstrates a powerful concept - Atmospheric Pressure
Cartesian Diver Set, Demonstrates the transmission of pressure by a liquid, the compressibility of gases and Archimedes Principle. The set consists of a Cartesian diver, glass cylinder, a rubber diaphragm and instruction
Game Land Water Air Learning Center-Grade 1-2, features a Curriculum Mastery Game with 30 illustrated, topic-specific question cards; 1 laminated game board; and materials for four players; 4-panel and visual guide, Write-On/Wipe-Off activities
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