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.
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.
• This model shows the major structures of an animal cell
• Different colors are used to easily identify the different structures of the cell
• Dimensions: 12" x 15.5" x 4.5" (30 x 40 x11cm)
This model shows the major structures of an animal cell. Different colors are used to allow teachers and students to easily identify the different structures of the cell, such as the nucleus, endoplasmic reticulum, mitochondria, ribosomes, Golgi apparatus, centrioles, lysosomes, and fat vacuoles. Dimensions: 12" x 15.5" x 4.5" (30 x 40 x11cm).
The younger students will be able to graphically determine for themselves the nature of acid-base chemistry. The experiments are varied and take advantage of common products. Kit contains: 1 vial Universal Indicator solution, 1 vial phenolphthalein solution, 1 vial methyl orange solution, 1 instruction manual, 24 student data sheets 6 color chart. Grades 5-8.
Proper dissolved oxygen levels are essential for aquatic ecosystems. A dissolved oxygen level of 5 mg/L or greater will support healthy growth of most fish species. Other applications include monitoring in waste water treatment plants, determination of BOD and COD. This test kit uses an adaptation of the Winkler method to determine dissolved oxygen. Includes 100 tests.