This pump features a painted steel barrel, steel valve assembly, and a wooden handle. Both in and out ports are equipped with hose connectors, for use with vacuum experiments as well as to generate pressure. Length 14", barrel diameter 1", shipping weight 1 lb.
This pump features a painted steel barrel, steel valve assembly, and a wooden handle. Both in and out ports are equipped with hose connectors, for use with vacuum experiments as well as to generate pressure. Length 14", barrel diameter 1", shipping weight 1 lb.
Single speed. This centrifuge consists of a substantial cast-iron body enclosing a steel pinion and worm drive fitted with a ball-thrust race. It comes with a removable crank handle and one thumb screw clamp to clamp the machine to a table. The head has captive union rings to accommodate 15 ml buckets. The body is baked in a hammertone finish. Complete with plastic buckets and glass centrifuge tubes.
Single speed. This centrifuge consists of a substantial cast-iron body enclosing a steel pinion and worm drive fitted with a ball-thrust race. It comes with a removable crank handle and one thumb screw clamp to clamp the machine to a table. The head has captive union rings to accommodate 15 ml buckets. The body is baked in a hammertone finish. Complete with plastic buckets and glass centrifuge tubes.
To study and demonstrate heat absorption and radiation. Consists of two metal concave plates one white and the other painted black with thermometer holders on the back, and in-between is a lamp, heat source. When the lamp is switched on and the temperature is measured of the metal plates, it can be studied which one absorbs heat quicker and more than the other. After the lamp is turned off, we can also study which losses heat quicker. Lamp operates on 12VDC. Base Size 7.75" x 7.75" x 0.5". Metal plates are 3.75" in dia. Total height of unit 5.5". One bulb included, thermometers not included.
To study and demonstrate heat absorption and radiation. Consists of two metal concave plates one white and the other painted black with thermometer holders on the back, and in-between is a lamp, heat source. When the lamp is switched on and the temperature is measured of the metal plates, it can be studied which one absorbs heat quicker and more than the other. After the lamp is turned off, we can also study which losses heat quicker. Lamp operates on 12VDC. Base Size 7.75" x 7.75" x 0.5". Metal plates are 3.75" in dia. Total height of unit 5.5". One bulb included, thermometers not included.
Students fill one container with water at room temperature and the other with boiling water. A thermometer is placed in each container and the water temperature in both cups read before heat transfer. The metal bar is then immersed in the cups, and students observe heat lost by boiling water and heat gained in the cooler water. Each kit includes: 2 insulated containers; 2 insulated lids with slots; 1 U-shaped aluminum transfer bar; 2 thermometers 20 degrees to 110 degrees. Additional materials required: low-temperature thermometer.
• 100% polyester 600D oxford with PVC coating.
• Adjustable straps.
• Silver reflective strips.
• Two side pockets with mesh vents.
• Front mesh pocket sized to hold full brim or cap style hard hat.
This Hi-Viz lime backpack measures 19.6" x 13" x 9.4". 100% Polyester 600D Oxford with PVC coating. Adjustable straps. Silver reflective stripe. Large mesh pockets. Front mesh pocket can hold one of our safety patrol helmets. Audio port for communication device.
These plug caps for test tubes are high grip hollow made of low density polyethylene. Hollow caps makes insertion and removal from test tubes easy. Sold in packs of 500.
Combines mathematics, geometry and aesthetics into a magical motion of surprising simplicity, beauty and fun. Its system of polymer links expand and contract almost effortlessly, changing in volume 30 times. A sturdy toy, an object of art, a tool for teaching mathematics and science - the Hoberman Sphere's universal appeal and versatility have led its owners to discover uses even its inventor never dreamed of. Children love to wear it on their heads, or climb inside. Grown-ups have proved themselves no less inventive: jugglers juggle with them. Drill teams march with them. Magicians make magic with them. Teachers teach geometry with them. Motivational speakers use them as metaphors for unity, teamwork and expanding potential. Ages 4 and up. Expands from 9.5" to 30".
Find out what pollutes drinking water and how it can be made safe again following pollution. Conduct experiments on the chemicals and organisms that make water unsafe to drink and conduct an experiment on its purification. Learn the causes and effects of water pollution.
Includes: Pinworm infection of appendix, Meningitis of the brain, Arterial occlusion, Emphysema, Lung infarction, Stomach ulcer, Kidney infarction, Thyroid goiter, Liver cirrhosis; Gangrene; Carcinoma of the lung, skin, kidney, breast and liver.
(l.s.) longitudinal section
(t.s) transverse section
(w.m) whole mount
(sec) special section
Set Includes:
H1 Human Salivary Gland (sec)
H2 Human Squamous Epithelium
H3 Human Stomach (sec)
H4 Human Liver (sec)
H5 Human Skin, Sweat Gland (sec)
H6 Human Skin (sec)
H7 Bone Marrow, Red (sec)
H8 Human Bone, Ground (c.s.)
H9 Human Muscle, Cardiac (sec)
H10 Human Muscle, Striated (h.s.)
H11 Human Cerebrum (sec)
H12 Human Blood; Smear; Wright Stain
H13 Human Tonsil (sec)
H14 Human Lung (sec)
H15 Human Sperm (sec)
H16 Human Testis (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 16 prepared slides. Human Salivary Gland (sec) Human Squamous Epithelium Human Stomach, (sec) Human Liver (sec) Human Skin, Sweat Gland (sec) Human Skin, Section Bone Marrow, Red (sec) Human Bone, Ground (c.s.) Human Muscle, Cardia (sec) Human Muscle, Striated (h.s.) Human Cerebrum (sec) Human Blood, Smear; Wright Stain Human Tonsil (sec) Human Lung (sec) Human Sperm (sec) Human Testis (sec).
This kit is great for all doubting Thomases in your elementary through high school classes. Fast, fascinating and easy. This kit includes: Two black-colored blocks with rim for holding melting ice cube in place. The "cooler" one is of aluminum, which is an excellent conductor of heat. The ?warmer" block is of plastic foam, which is a very poor conductor of heat.
This kit is great for all doubting Thomases in your elementary through high school classes. Fast, fascinating and easy. This kit includes: Two black-colored blocks with rim for holding melting ice cube in place. The "cooler" one is of aluminum, which is an excellent conductor of heat. The ?warmer" block is of plastic foam, which is a very poor conductor of heat.
Polished wooden top 600x100x 20mm. With pulley. Hinged to a polished wooden base 400 x 100 x 20mm. The plane can be fixed at any angle with the help of a clamp. Supplied complete with aluminum graduated protractor, cylindrical plated metal roller 38mm in diameter and scale pan but without weights.
Polished wooden top 600x100x 20mm. With pulley. Hinged to a polished wooden base 400 x 100 x 20mm. The plane can be fixed at any angle with the help of a clamp. Supplied complete with aluminum graduated protractor, cylindrical plated metal roller 38mm in diameter and scale pan but without weights.
Demonstrate rotation, revolution, and orbit in 3 dimensions with this durable, washable solar system set.
Teach the position, order, size, and shape of the planets and sun
Also great for creating an out-of-this-world playroom or bedroom
Each colorful planet (and sun) inflates easily
Loops included for easy hanging
This unique solar system set turns any room into an intergalactic experience
Includes
8 planets with hanging hooks, Pluto, Sun, Earth€™s Moon, convenient foot pump, activity guide with fun planet facts, Repair kit
Measure 5€�-23€� in diameter:
Age 5+
Grade K+
Demonstrate rotation, revolution, and orbit in 3 dimensions with this durable, washable solar system set. Teach the position, order, size, and shape of the planets and sun. Also great for creating an out-of-this-world playroom or bedroom. Each colorful planet (and sun) inflates easily. Loops included for easy hanging. This unique solar system set turns any room into an intergalactic experience. Includes: 8 planets with hanging hooks, Pluto, Sun, Earth€™s Moon, convenient foot pump, activity guide with fun planet facts, Repair kit. Measure 5€�-23€� in diameter: Age 5+. Grade K+.
Provide your classroom with an unforgettable, hands-on lesson on ecology and the food chain. Your students will dissect owl pellets to study the skeletal remains of the raptor's prey and, using a dichotomous key, identify the species consumed. Also construct a rodent skeleton from the recovered skeletal prey. With their findings, students will construct a food web, compiling a summary of the owl's diet in order to estimate the diversity of the prey available in the ecosystem.
Students explore North America's mineral and rock resources and how man uses them all. Mounted natural specimens and corresponding man made products (i.e. gypsum and wallboard, bauxite and aluminum) are placed on a map of North America. 18"x24" in wood frame. Grades 6-12.
Wood framed reference chart, complete with mounted specimens. The evidence supporting the theory of Plate Tectonics is shown on this chart. Rock specimens that illustrate the variety of processes related to the Earth's dynamic crust are mounted on this 18" X 24" chart. Grades: 4 - 12.
The relationship between resources that are renewable in one human life span and the associated products are clearly illustrated on this visually appealing chart. Students will be enticed to investigate the worldwide resources for materials they use every day. This chart complements the Investigating Non-Resources chart. Representative natural materials and the corresponding everyday products are mounted on a sturdy, wood framed 18"x 24" image. Grades 6-12.
Sprocket Gears! Spur Gears! Rack & Pinion! And More! The K'NEX® Education Gears set is designed to introduce students to the scientific concepts associated with gears. Students are provided with the opportunity to acquire skills using a hands-on, inquiry-based approach to information and concepts as they build, investigate, discuss, and evaluate scientific principles in action. The Teacher's Guide provides the information and resources needed to build students' understanding of scientific concepts and channel their inquiries into active and meaningful learning experiences. Extension activities to explore the concepts more deeply are also included. Set includes 198 K'NEX® parts €“ enough to build 7 fully-functioning replicas of real-world machines, one at a time. Supports 2 €“ 3 students working as a team. Grades 3 -5. Building instructions and comprehensive teacher's guide aligned to Science, Technology, Engineering and Math Standards included. Packaged in a strong storage tray with snap-on lid. STEM Education focuses on science, technology, engineering and mathematics concepts taught through problem-solving, discovery, exploratory learning and critical thinking. STEM Education requires students to be active participants in the learning. K'NEX® models offer hands-on learning opportunities that encourage scientific inquiry, investigation and experimentation. Our inquiry-based lessons challenge students as they build, investigate, problem solve, discuss, and evaluate scientific and design principles in action. Aligned to Science, Technology, Engineering, and Math standards. Also see K'NEX® Education's Intro to Simple Machines: Levers and Pulleys and Intro to Simple Machines: Wheels & Axles and Inclined Planes, and Simple Machines Deluxe for grades 3-5 and Exploring Machines for grades 5 - 9. Includes Teacher Guide on CD!
Multi-Purpose polypropylene molded trays can be used for sterilizing, drying glassware, porcelain ware, and other laboratory supplies. These steam autoclavable trays have tapered walls designed for nesting. 450mm x 350mm x 75mm
• Lag and Shield is perfect for use in concrete
• Can be used on asphalt when seasonal removal of product is required
• Easy to use
• Resistant to rust
Lag and shield fastener system for attaching products to concrete. The fastener systems is rust resistant and easy to install. Additionally, the fastener can be easily removed
Set Contains The Following:
• 3/8” x 6” Hex head lag screw
• 3/8” SAE Flat Washer
• 3/8” x 3” Long Shield
For series and parallel experiments. Mounted on strong clear acrylic base. 3 lamp holders. Connecting bus bars allow for easy changing from series to parallel. Complete with 3 standard flashlight size lamps. Size: 5" x 10". Bulbs may be purchased separately.
For series and parallel experiments. Mounted on strong clear acrylic base. 3 lamp holders. Connecting bus bars allow for easy changing from series to parallel. Complete with 3 standard flashlight size lamps. Size: 5" x 10". Bulbs may be purchased separately.
Demonstrates difference between series and parallel lighting. Five flashlight bulb sized sockets mounted with binding posts. Bulbs may be purchased separately. See below.
Demonstrates difference between series and parallel lighting. Five flashlight bulb sized sockets mounted with binding posts. Bulbs may be purchased separately. See below.
This accurate relief model features a view of the earth?s interior and atmosphere in the same scale. The 12-inch diameter plastic globe, mounted in a cradle base, crust, mantle, and inner and outer cores. Used as a relief globe, this White model can be used for many classroom activities. The removable disk also portrays the atmosphere, temp, air densities, distance and problems of space travel. Size 14" x 14".
12" Wide x 13 1/4" Long Printed on both sides. These directional reinforcement devices give supplemental standard warnings and directions creating safer traffic control in the school area. Installs in seconds and firmly locks in place. Reusable, All-weather ABS plastic with UV. Used by thousands of schools, cities and utility companies. Has 3M reflective sheeting.