Marina air stone is ideal for adding accents in any aquarium the air stone diffuses air, creating water movement. The air stone also increases surface agitation, accelerates oxygen replenishment and helps release
Marina air stone is ideal for adding accents in any aquarium the air stone diffuses air, creating water movement, increases surface agitation, accelerates oxygen replenishment, release carbon dioxide build-up, Rec
Marina T Connector allows to split air coming from the air pump into two even and constant air streams to separate air-driven devises in aquarium. The plastic and non-corrosive connector is safe for use in salt water aq
Marina air stone is ideal for adding accents in any aquarium the air stone diffuses air, creating water movement. The air stone also increases surface agitation, accelerates oxygen replenishment and helps release car
Marina Cool airline tubing accessory for any air device. It is ideal for use with air stones, air-actuated ornaments and air-driven filters. Designed to fit all standard outlets, the airline tubing will remain supp
Marina airline tubing is safe and dependable for use with air stones, air-actuated ornaments and air-driven filters. Designed to fit all standard outlets, the tubing will remain supple and retain its shape. Size:
Marina Check Valve prevents water from siphoning out of the aquarium through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories from the aqu
Marina airline tubing is safe and dependable for use with air stones, air-actuated ornaments and air-driven filters. Designed to fit all standard outlets, the tubing will remain supple and retain its shape. Size: 3 m
Marina Ultra 4-way air control valve allows you to run up to 4 air-driven products. Each valve has flow adjuster which enables you to regulate air output to each devise. The valve is leak-proof and suitable for fresh
Marina air stone is ideal for adding accents in any aquarium the air stone diffuses air, creating water movement, increases surface agitation, accelerates oxygen replenishment, release carbon dioxide build-up, Rec
Marina airline tubing is safe and dependable for use with air stones, air-actuated ornaments and air-driven filters. Designed to fit all standard outlets, the tubing will remain supple and retain its shape. Size: 6
Marina air stone is ideal for adding accents in any aquarium the air stone diffuses air, creating water movement, increases surface agitation, accelerates oxygen replenishment, release carbon dioxide build-up, Rec
Marina Cool Air Pump is a reliable source for a wide variety of applications requiring the delivery of oxygen to aquariums, including delivering air to air-operated items such as air stones, air curtains, and air-
Kit Electromagnet Crane Activity Single, Utilize the design and engineering process, Encourage creativity, critical thinking and problem solving, Learn about electromagnetism, magnetic fields, and simple machines, Apply the scientific method, Innovate
Kit Air Racer Activity, Single, Utilize the design and engineering process, Encourage creativity, critical thinking and problem solving, Learn about electricity, blade angle, and propeller design, Apply the scientific method, Innovate (design, build and evolve design)
Kit is climate change making us sick, Conduct simulated antibody tests for allergens, Graph and analyze data to determine if there is a correlation between temperature, pollen counts, and allergy symptoms, Single, Time: 1-2 forty-minute class periods
Marina 75 Air Pump combines high performance output with quiet operation, air pump is a reliable air source for a wide variety of applications for delivery of oxygen to air-operated aquarium, Single Outlet Output: 60
Marina Battery Air Pump, Provides auxiliary air when main air source fails, Reliable back-up air source during household electrical power failure, Portable aerator for fish in transit, with air stone/18in tubing, Use
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
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
Harbottle, teaching tool for introducing pressure and discussing its applications, such as vacuum cleaners, flight, pumps, weather, and even how we breathe, balloon and a bottle, Measures 5In in diameter. Grades 5 and up
List View
Easy View (new)
