• Economy series 1-pocket mesh vest
• Left chest pocket
• 4-inches Velcro front closure
• 2-inches Silver reflective material
• Fits large and extra large
Remarkable ANSI mesh polyester designed to keep workers safe, cool and comfortable. This washable polyester mesh greatly increases airflow and reduces the containment of heat within the vest. The result is a significantly more comfortable vest during the summer months. ANSI Class II compliant vests with fluorescent colors, hook and loop closure, shoulder stripes and 2" 3M Scotchlite Silver Tape.
• Adjustable hoop & loop closure
• ANSI/ISEA 107 Class headwear
• Adjustable size
1 sheet with 7 strips. Self adhesive Reflexite retroreflective material. Measurements: 1/2" W x 22" L Curved shape to fit safety patrol helmets. Exceeds minimum reflectivity requirements of the proposed ANSI/ISEA 107 for high visibility.
1 sheet with 7 orange reflective strips. Self adhesive Reflexite retroreflective material. Measurements: 1/2" W x 22" L Curved shape to fit safety patrol helmets. Exceeds minimum reflectivity requirements of the proposed ANSI/ISEA 107 for high visibility.
1 sheet with 7 strips. Self adhesive Reflexite retroreflective material. Measurements: 1/2" W x 22" L Curved shape to fit safety patrol helmets. Exceeds minimum reflectivity requirements of the proposed ANSI/ISEA 107 for high visibility.
1 sheet with 7 white reflective strips. Self adhesive Reflexite retroreflective material. Measurements: 1/2" W x 22" L Curved shape to fit safety patrol helmets. Exceeds minimum reflectivity requirements of the proposed ANSI/ISEA 107 for high visibility.
1 sheet with 7 strips. Self adhesive Reflexite retroreflective material. Measurements: 1/2" W x 22" L Curved shape to fit safety patrol helmets. Exceeds minimum reflectivity requirements of the proposed ANSI/ISEA 107 for high visibility.
1 sheet with 7 lime reflective strips. Self adhesive Reflexite retroreflective material. Measurements: 1/2" W x 22" L Curved shape to fit safety patrol helmets. Exceeds minimum reflectivity requirements of the proposed ANSI/ISEA 107 for high visibility.
Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.
Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.
Oversized "Y" section of artery, with cut-away, showing gradual build-up of cholesterol deposits. Model size: 6-1/4" x 2" x 4". Card size: 6-1/2" x 5 -1/4"
Oversized "Y" section of artery, with cut-away, showing gradual build-up of cholesterol deposits. Model size: 6-1/4" x 2" x 4". Card size: 6-1/2" x 5 -1/4"
24" x 36" full color laminated poster.
Arthropods are animals that have an external skeleton. They are the most abundant animals on Earth but are often misunderstood. Spiders, millipedes, and other arthropods are often mistakenly referred to as “insects” and “bugs.” This poster explains the differences.
Each of the five clades (formerly subphylum) is carefully explored. Highly detailed illustrations show an incredible 98 species, many life size. All are identified by both common and scientific names.
Insects account for the great bulk of the arthropods, and this poster includes representatives of all the major orders. The crustaceans include crabs and lobsters as well as shrimp, krill, and even barnacles. Included with them is the giant sea scorpion; this long-extinct animal is the largest arthropod that ever lived, reaching a length of six feet.
This remarkable poster even includes the prehistoric trilobites. They were the dominant life form during the Permian but became extinct. Highly educational, very attractive, and decorative, this poster appeals to teachers, students, collectors, and professional entomologists.
24" x 36" full color laminated poster. Arthropods are animals that have an external skeleton. They are the most abundant animals on Earth but are often misunderstood. Spiders, millipedes, and other arthropods are often mistakenly referred to as “insects” and “bugs.” This poster explains the differences. Each of the five clades (formerly subphylum) is carefully explored. Highly detailed illustrations show an incredible 98 species, many life size. All are identified by both common and scientific names. Insects account for the great bulk of the arthropods, and this poster includes representatives of all the major orders. The crustaceans include crabs and lobsters as well as shrimp, krill, and even barnacles. Included with them is the giant sea scorpion; this long-extinct animal is the largest arthropod that ever lived, reaching a length of six feet. This remarkable poster even includes the prehistoric trilobites. They were the dominant life form during the Permian but became extinct. Highly educational, very attractive, and decorative, this poster appeals to teachers, students, collectors, and professional entomologists.
Two commonly used drugs, aspirin and antacids, will be analyzed separately. After investigating samples included in kit, students can select brands of their own choice for additional comparison. Grades 9-12.
A creative way for children to learn astronomy concepts. Players toss the 24" ball to each other and call out the answers to the problem found under their left thumb. Many variations of play! Includes a list of game suggestions with directions and answers! For grades 4-8.
Newton's Second Law of Motion. Demonstrates inertia.
Newton's Second Law of Motion. Demonstrates inertia.
Demonstrates expansion of metals with heat.
Demonstrates expansion of metals with heat.
Push the cart and eject the steel ball from the spring-loaded barrel. The ball falls back into the barrel of the moving car, demonstrating that the forward motion of the ball is the same as the vehicle from which it was ejected. Comes with a steel ball, release pin and cord. The barrel permits two different heights of ball flight.
Push the cart and eject the steel ball from the spring-loaded barrel. The ball falls back into the barrel of the moving car, demonstrating that the forward motion of the ball is the same as the vehicle from which it was ejected. Comes with a steel ball, release pin and cord. The barrel permits two different heights of ball flight.
Illustrates linear and spherical expansion by heating and contraction by cooling. Mild steel bar 110x12.5mm, length x diameter. Mounted on a rod with wooden handle and a brass gauge 150x38mm with a cutout mounted on a separate wooden handle which just admits the bar lengthways and a hole into which the bar passes endways when cold.
Illustrates linear and spherical expansion by heating and contraction by cooling. Mild steel bar 110x12.5mm, length x diameter. Mounted on a rod with wooden handle and a brass gauge 150x38mm with a cutout mounted on a separate wooden handle which just admits the bar lengthways and a hole into which the bar passes endways when cold.
Made of chrome steel with marked poles. Dimensions: 6" x 3/4" x 1/4". Set of 2. Includes plastic box.
The Barn Owl. An Introduction to Owl Pellet Labs. Describes the habitat and life-cycle of the Barn Owl. Computer animation is used to show the adaptations which allow the owl to find prey in darkness and process the prey into pellets. The final portion of this video is an overview of classroom techniques with owl pellets, including dissection and identification of prey and their skeletal parts. 15 minutes.
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.
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.
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.