Clear flint glass square shape 300ml bottles with glass pipette dropper rubber bulb stopper. Set of 5 bottles. Comes complete with teak wood nicely polished tray. As the tray is made from Teak Wood it is resistant to liquid spillage.
Encased in a transparent acrylic case which allows full view of the movement. The action can be demonstrated with the help of a rubber bellow which increases the pressure when squeezed. Supplied complete with rubber bellow.
• Made from recycled tires
• Economical and helps the environment
• Fits Econocade II traffic drum
• 24 lbs.
• Inside Diameter: 22.5"
This 3" wide barrier rope is ideal for sectioning off hazardous areas. Strong durable plastic.
This 3" wide barrier rope is ideal for sectioning off hazardous areas. Strong durable plastic.
• 48" rain coat.
• Made with 0.35mm thick PVC and polyester fabric
• Vented cape back with storm flap.
• Detachable hood.
• Two outside pockets with flaps.
• Snap front closure.
• Light to medium duty
• Available with or without CROSSING GUARD emblem
Ideal for survey crews, law enforcement, military, ranching and forestry. This rain coat is made of a .35mm PVC layer over polyester perfect for light to medium duty applications. It features a vented cap back with a storm flap and detachable drawstring hood. A corduroy collar and 2 outside pockets with flaps. The front snap closure features a storm flap to keep the rain out even in the most punishing conditions.
This slide kit contains 12 ready-to-view biology slides in a plastic case. The case has numbered slots and a numbered contents sheet for identifying the slides, and holds the slides securely for storage. This slide kit is suitable for biological microscopic study. Slides include: Bacteria, smear from mouth; Onion root tip, l.s., mitosis; Amoeba proteus, w.m.; Monocot/Dicot stem, c.m.; Paramecium, w.m.; Lilac leaf, c.s.; Spirogyra, vegetative filaments, w.m.; Hydra, w.m.; Bread molds, sexual, w.m.; Earthworm, c.s. of posterior; Buttercup root, c.s.; Human blood smear.
Note:
(l.s.) longitudinal section
(t.s) transverse section
(w.m) whole mount
(sec) special section
Set Includes:
• D1 Onion Root Tip Mitosis (l.s.)
• D2 Lichens Foliose Body (sec)
• D3 Fumaria Whole (w.m.)
• D4 Fern Leaf (w.m.)
• D5 Pinus Xylem Stem (t.s.)
• D6 Pinus Young Male Cone (l.s.)
• D7 Pinus Young Female Cone (l.s.)
• D8 Pumpkin Stem (l.s.)
• D9 Pumpkin Stem (t.s.)
• D10 Zee Mays Root (t.s.)
• D11 Zee Mays Root (l.s.)
• D12 Triticum Aestivum Leaf Epidermis (w.m.)
• D13 Lilium Browni Ovary (t.s.)
• D14 Pollen Tube Budding (w.m.)
• D15 Zee Mays Seed (l.s.)
Introduce the world of microscopy to your students through the selection of this prepared slide set. High-quality, yet affordable, 1"x 3"slides labeled and stored in a slotted plastic container. Set of 15 prepared slides. Set Includes: D1 Onion Root Tip Mitosis (l.s.) D2 Foliose Lichen's Body (sec) D3 Fumaria (w.m.) D4 Fern Leaf (w.m.) D5 Pinus Xylem Stem (t.s.) D6 Pinus Young Male Cone (l.s.) D7 Pinus Young Female Cone (l.s.) D8 Pumpkin Stem (l.s.) D9 Pumpkin Stem (t.s.) D10 Zea Mays Root (t.s.) D11 Zea Mays Root (l.s.) D12 Triticum Aestivum Leaf Epidermis (w.m.) D13 Lilium Brownii Ovary (t.s.) D14 Pollen Tube Budding (w.m.) D15 Zea Mays Seed.
Simplified form of 13281-2. Includes: jar, screw-on ring, electrode holders, zinc, copper electrodes. Complete instructions.
Simplified form of 13281-2. Includes: jar, screw-on ring, electrode holders, zinc, copper electrodes. Complete instructions.
Contains all the basic professional borosilicate labware and equipment for conducting science experiments. The kit contains the text, "101 Science Experiments for Everyone" as a source of safe experiments.
Other components include:
1-Rubberized lab apron
1-Beaker - 100ml
1-Beaker - 250ml
1-Beaker - 400ml
1-Porcelain evaporating dish
1-250ml Erlenmeyer flask
1-Thistle tube, plastic
1-Safety goggles
1-50ml Graduated cylinder
1-Filtering paper
12-Medicine droppers
1-Spatula, stainless steel, 22cm length
1-Sponge 1x3-3/8"
3-Rubber stoppers, #6 solid
6-Test tubes 16x150mm
1-Test tube rack
1-Test tube brush
1-Test tube clamp, brass
1-Pair of crucible tongs
Pipestem triangle
1-Burner tripod, cast iron
1-Wire gauze square, 4x4"
1-Crucible, porcelain HF
1-Plastic cylinder 100 ml capacity
This kit allows students to explore the electrical properties of different combinations of electrode materials using safe, everyday chemicals such as soda, vinegar, and fruit juice as electrolytes. The set contains everything needed for the experiments except the electrolytes. Voltage, current, and polarization effects can be investigated. Contents of the set include a simple cell with electrode holders, electrodes of copper, aluminum, iron, and zinc, a mounted resistor for use as a current load, a multimeter, and a manual.
Note:
(l.s.) longitudinal section
(t.s) transverse section
(w.m) whole mount
(sec) special section
(c.s) cross section
Set Includes:
• E1 Hair Follicle - Human
• E2 Skeletal Muscle (t.s./l.s.)
• E3 Kidney (l.s.)
• E4 Taste Bud (t.s.)
• E5 Earthworm (t.s.)
• E6 Artery and Vein (t.s.)
• E7 Sperm - Human Smear
• E8 Lung Section
• E9 Gill - Fresh Water Fish (t.s.)
• E10 Frog Skin Pigment Cell
• E11 Frog Egg Early Cleavage (sec)
• E12 Lymph Node (sec)
• E13 Ovary from Mammal (sec)
• E14 Nerve Cell
• E15 Simple Squamous Epithelium (sec)
Introduce the world of microscopy to your students through the selection of this prepared slide set. High-quality, yet affordable, 1"x 3"slides labeled and stored in a slotted plastic container. Set of 15 prepared slides. Set Includes: E1 Human Hair Follicle E2 Skeletal Muscle (t.s./l.s.) E3 Kidney (l.s.) E4 Taste Bud (t.s.) E5 Earthworm (t.s.) E6 Artery and Vein (t.s.) E7 Human Sperm Smear E8 Lung Section E9 Gill - Fresh Water Fish (t.s.) E10 Frog Skin Pigment Cell E11 Frog Egg Early Cleavage (sec) E12 Lymph Node (sec) E13 Mammalian Ovary (sec) E14 Nerve Cell (w.m.) E15 Simple Squamous Epithelium.
Battery holders with 12" Lead wires, stripped ends. Sturdy plastic construction.
D, C, AA, and 9V models available with 12" Lead wires with stripped ends. Sturdy plastic construction. batteries not included
This child safety poncho easily goes over your child's head, and will lay over a backpack. Reflective circles and shoulder stripes shine brightly when light hits them, keeping children visible and safe. The bright lime color stands out and helps you keep an eye on your child when in a crowd. Also great for kids that help adult crossing guards before and after school.
Handles beakers from 100 to 1500 ml capacity. Stainless steel. Riveted joint. . .Jaws are fiberglass covered. Length 13 1/2".
Handles beakers from 100 to 1500 ml capacity. Stainless steel. Riveted joint. . .Jaws are fiberglass covered. Length 13 1/2".
Plated Steel. Plastisol jaws. For beakers 50-2000 ml capacity. Flat riveted joint. Length 9". Jaw opening 4 1/2".
Plated Steel. Plastisol jaws. For beakers 50-2000 ml capacity. Flat riveted joint. Length 9". Jaw opening 4 1/2".
Black bristle. Wooden handle. Tufted end. 3 1/4" brush diameter. 13" overall length.
Black bristle. Wooden handle. Tufted end. 3 1/4" brush diameter. 13" overall length.
All parts easily visible. Rigid construction. Mounted on wooden board nicely polished. Workable on 3-4 volts AC or DC.
All parts easily visible. Rigid construction. Mounted on wooden board nicely polished. Workable on 3-4 volts AC or DC.
Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.
Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.
When is a bicycle wheel a gyroscope? When you put a new "spin" on it. Give our bicycle wheel a spin, then try to tilt or deflect it. Our student-sized bicycle wheel turns freely on its axis and has large, comfortable handles at each end. Because mass is concentrated at the rim, you can tilt the spinning wheel to feel the force of rotation. With instructions.
When is a bicycle wheel a gyroscope? When you put a new "spin" on it. Give our bicycle wheel a spin, then try to tilt or deflect it. Our student-sized bicycle wheel turns freely on its axis and has large, comfortable handles at each end. Because mass is concentrated at the rim, you can tilt the spinning wheel to feel the force of rotation. With instructions.
Penicillium, Coprinus, Spirogyra vegetative and conjugating, Pediastrum, bacteria 3 shapes, Moss male head, Pine life, Onion mitosis, Corn stem, Lilac leaf, pollen, Lily ovary, Paramecium, Amoeba proteus, Grantia spicules, Hydra, Planaria, letter "e", Trichinella, Daphnia, Cartilage hyaline, frog and human blood and skin.
24" x 36" full color laminated poster.
This is an especially important poster because it presents the new Sibley-Ahlquist bird classification system. Based on recent DNA studies, this system uses cladistics to reconstruct the evolutionary family tree. Who would have thought that birds as diverse as flamingos, eagles, and penguins would end up in the same clade? However, this revolutionary new system has been widely accepted by North American ornithologists and has made the previous bird classification system obsolete. Although this poster shows true clades, the scientific community continues to use the order names, which are cited.
This is a truly beautiful poster, one greatly appreciated by bird lovers. It certainly enhances the decor of their home or office, yet it presents information that has even greater value. All the bird clades are explored, and all of the many classification changes resulting from the transition from orders to clades are explained. This information has never before been published in such a concise and convenient form, making this poster an essential reference for anyone seriously interested in birds.
24" x 36" full color laminated poster. This is an especially important poster because it presents the new Sibley-Ahlquist bird classification system. Based on recent DNA studies, this system uses cladistics to reconstruct the evolutionary family tree. Who would have thought that birds as diverse as flamingos, eagles, and penguins would end up in the same clade? However, this revolutionary new system has been widely accepted by North American ornithologists and has made the previous bird classification system obsolete. Although this poster shows true clades, the scientific community continues to use the order names, which are cited. This is a truly beautiful poster, one greatly appreciated by bird lovers. It certainly enhances the decor of their home or office, yet it presents information that has even greater value. All the bird clades are explored, and all of the many classification changes resulting from the transition from orders to clades are explained. This information has never before been published in such a concise and convenient form, making this poster an essential reference for anyone seriously interested in birds.
• 100% polyester 300D oxford with PU coating.
• Zipper closure with snapped storm flap.
• 100% black polyester fleece liner.
• Left interior chest pocket.
• Two exterior slash pockets with rain guard.
• Detachable and stowable hood.
• Mic tabs on both shoulders.
• Adjustable cuffs.
ANSI Class 3. Polyester 300D oxford with PU coating. 100% Black polyester fleece lining. Zipper & snap front closure. Detachable and stowable hood. 2 exterior slash pockets with rain guard, 1 interior chest pocket. Mic tabs on both sides. Waterproof. Conforms to ANSI/ISEA 107 for design, color & reflectivity.