Great for seed starting! Or use to grow flowers and plants year round indoors! Double tube fluorescent plant light fixture. Assembly contains two 18", 15 watt wide-spectrum tubes. Use under shelves or over tables. Pre-wired, fully assembled fluorescent fixture features all metal frame construction for years of service. Hanging chains included. Dimensions: 2"H x 18"W x 10"D.
• Modeled after a sunflower
• This one year dicot stem gives anatomy in cross, radial and tangential sections
• Shows epidermis, cork layer, phloem region, cambium, xylem region, pith and other structures
• Enlarged 45 times. Made of plastic and mounted on a wooden base
• Measures 37 cm X 27 cm X 19 cm.
Modeled after a sunflower, this one year dicot stem gives anatomy in cross, radial and tangential sections. Shows epidermis, cork layer, phloem region, cambium, xylem region, pith and other structures. Enlarged 45 times. Made of plastic and mounted on a wooden base. Measures 37 cm X 27 cm X 19 cm.
• Magnified 45 times from a lima bean leaf
• This plastic model shows the transverse and longitudinal sections
• Also shows the upper and lower surfaces of a typical leaf
• The mesophyll includes palisada parenchyma and spongy parenchyma
• Both surfaces are shown with stomas and guards cells
• Also shown is the detail of vascular bundles, such as xylem, phloem and the veins
• Measures: 45 cm X 22 cm X 16 cm
Magnified 45 times from a lima bean leaf. This plastic model shows the transverse and longitudinal sections as well as the upper and lower surfaces of a typical leaf. The mesophyll includes palisada parenchyma and spongy parenchyma. Both surfaces are shown with stomas and guards cells. Also shown is the detail of vascular bundles, such as xylem, phloem and the veins. Measures: 45 cm X 22 cm X 16 cm.
• This model of corn gives details of cellar anatomy of the generalized monocot
• Details shown in cross and longitudinal section
• Shows important structures and details of closed vascular bundles
• Enlarged 45 times, made of plastic and mounted on a wooden base
• Measures 42 cm X 43 cm X 15 cm
This model of corn gives details of cellar anatomy of the generalized monocot in cross and longitudinal section. Shows important structures such as cuticular layer, epidermis, thick walled mechanical tissue, fundamental parenchymatous tissue and details of closed vascular bundles. Enlarged 45 times, made of plastic and mounted on a wooden base. Measures 42 cm X 43 cm X 15 cm.
An ideal growing medium for annual and perennial flowers, vegetables and house plants. Composed of equal parts of shredded sphagnum peat moss and fine grade vermiculite plus just enough nutrients to sustain initial plant growth. Mixture will produce acceptable plants but for long term growing a balanced water soluble fertilizer is applied weekly. 4-Quart bag fills 35-3" pots.
Instant planter, just add water then seed or stick in cuttings as desired. Peat with proper starting nutrients are compressed into small wafer, when water is added, it expands 7 times its size into small post 1 3/4" x 2 1/8" high and covered with plastic net. Plant roots grow right through pellet permitting replanting without removing pot. Pack of 24.
Multiple program timer turns on automatically two or more times in 24 hours. Grounded for safety when used in three-prong electrical outlets.
Unique features include flexible, shatterproof material, and no-drip cover. Exclusive design forces condensation to remain in the tank. 10-1/2 in. x 7 in.
Great for creating terrariums, small aquariums, or as a "critter" cage. Solves the cracking and breakage problem of rigid plastic and glass tanks. Unique features include nestable to save storage space, flexible, shatterproof material, molded foot pegs that prevent scratching and temperature transfer, rounded corners for easy clean up, and no-drip cover. Exclusive design forces condensation to remain in the tank.
Great for creating terrariums, small aquariums, or as a critter cage. Solves the cracking and breakage problem of rigid plastic and glass tanks. Unique features include nestable to save storage space, flexible, shatterproof material, molded foot pegs that prevent scratching and temperature transfer, and rounded corners for easy clean up. Half gallon tank. 5-3/8 in. x 7 in. x 3-3/4 in.
Unique features include flexible, shatterproof material, and no-drip cover. Exclusive design forces condensation to remain in the tank.
Unique features include flexible, shatterproof material, and no-drip cover. Exclusive design forces condensation to remain in the tank. 10-1/2 in. x 7 in. x 3-1/4 in.
A unique hands-on science teaching aid that is visually exciting to students. Students are able to watch what they see and read in a science book happen right before their eyes. The Teaching Tank is approximately 12" x 12" x 1/2" and can be easily dismantled and cleaned with mild soap and water.
This expansion kit will allow teachers, parents, and students the opportunity to turn their original Teaching Tank into a small aquarium in about two minutes. With this wider tank, a whole new variety of experiments can now be completed.
This kit can be highly motivational to students for regular class or independent study. Both teacher and student guides are professionally produced and include easy-to-follow directions. Illustrations identify skulls of common prey species and charts are provided for students to record the data collected. Students learn about energy transfer through food chains while observing skeletal features which identify prey animals consumed. Additional studies can be conducted to evaluate animal populations within the owl's habitat, make calculations to estimate the biomass of the prey animals, or investigate the skeletal anatomy from the taxonomic features of the prey animals. 15 student worksheets, and Teacher's guide. Grades 7 and up.
This kit can be highly motivational to students for regular class or independent study. Both teacher and student guides are professionally produced and include easy-to-follow directions. Illustrations identify skulls of common prey species and charts are provided for students to record the data collected. Students learn about energy transfer through food chains while observing skeletal features which identify prey animals consumed. Additional studies can be conducted to evaluate animal populations within the owl's habitat, make calculations to estimate the biomass of the prey animals, or investigate the skeletal anatomy from the taxonomic features of the prey animals. 15 student worksheets, and Teacher's guide. Grades 7 and up.
• Personal Protective Equipment
• Eye Protection
• Bouton Goggles
Soft vinyl frame with 184 perforations for maximum ventilation. Optical quality, distortion free lenses. Adjustable elastic band. Easily fits over glasses. One size fits all.
• Personal Protective Equipment
• Eye Protection
• Bouton Goggles
Soft vinyl frame with 184 perforations for maximum ventilation. Optical quality, distortion free lenses. Adjustable elastic band. Easily fits over glasses. One size fits all.
• Full 180 degree view with no distortion
• Made of polycarbonate
• Anti-scratch coating
• Anti-Fog treated lenses
• Silicone pads for perfect fit.
• Offer great vision and protection.
• Flow-through ventilation design minimizes fogging
• Size: Adult
Full 180 degree view with no distortion. Made of polycarbonate. Anti-scratch coating, fog-free lenses. Silicone pads for perfect fit. Offer great vision and protection. Unique flow-through ventilation design minimizes fogging.
• Full 180 degree view with no distortion
• Made of polycarbonate
• Anti-scratch coating
• Anti-Fog treated lenses
• Silicone pads for perfect fit.
• Offer great vision and protection.
• Flow-through ventilation design minimizes fogging
• Size: Youth
Full 180 degree view with no distortion. Made of polycarbonate. Anti-scratch coating, fog-free lenses. Silicone pads for perfect fit. Offer great vision and protection. Unique flow-through ventilation design minimizes fogging.
• Great value
• Anti-fog coating
• Flow-through ventilation
Great Specs offer a great value with anti-fog coating and flow-through ventilation.
• The Best eye protection available.
• Passed ASTM F803-97 tests by Detroit Testing Labs.
• Made of shatterproof polycarbonate lenses.
• Has adjustable temples.
• Lens is made to perfection with no vision distortion.
• Specs retainer is included in pack.
The Best eye protection available. Passed ASTM F803-97 tests by Detroit Testing Labs. "Official" eyeguard of USRA. Made of shatterproof polycarbonate lenses. Has adjustable temples. Lens is made to perfection with no vision distortion. Specs retainer is included in pack.