• 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.
• STOP/GO reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• Sign is printed on both sides.
• Includes flashing red light on "STOP" side.
• Light uses 2 AA batteries (not included).
This heavy-duty 18" diameter aluminum sign is visible from one hundred yards away, has bold 6" high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Sign is printed on both sides. Includes flashing red light on "STOP" side. Light uses 2 AA batteries (not included). 70" High. Ships small package.
Order Heavy-Duty Rain Ponchos HERE
• STOP/GO reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• Sign is printed on both sides.
Heavy-duty 18" diameter aluminum signs is visible from one hundred yards away, has bold 6" high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Sign is printed on both sides. 70" High. Ships UPS or FedEx Ground.
Order Heavy-Duty Rain Ponchos HERE
• STOP/SLOW reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• Sign is printed on both sides.
• Includes flashing red light on "STOP" side.
• Light uses 2 AA batteries (not included).
This heavy-duty 18" diameter aluminum sign is visible from one hundred yards away, has bold 6" high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Sign is printed on both sides. Includes flashing red light on "STOP" side. Light uses 2 AA batteries (not included). 70" High. Ships small package.
Order Heavy-Duty Rain Ponchos HERE
• STOP/SLOW reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• Sign is printed on both sides.
This heavy-duty 18 inch diameter aluminum sign is visible from one hundred yards away, has bold 6 inch high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Sign is printed with STOP on one side and SLOW on the other side. 70in High.
Order Heavy-Duty Rain Ponchos HERE
• STOP/STOP reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• Sign is printed on both sides.
• Includes flashing red light on both sides.
• Lights use 2 AA batteries (not included).
This heavy-duty 18" diameter aluminum sign is visible from one hundred yards away, has bold 6" high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Sign is printed on both sides. Includes flashing red light on each "STOP" side. Each light uses 2 AA batteries (not included). 70" High. Ships small package.
Order Heavy-Duty Rain Ponchos HERE
• STOP/STOP reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• Sign is printed on both sides.
This heavy-duty 18 inch diameter aluminum sign is visible from one hundred yards away, has bold 6 inch high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Sign is printed with STOP on both sides. 70in High.
Order Heavy-Duty Rain Ponchos HERE
Expand student's understanding of energy costs with this model of a passive solar house. The 11" x 11" x 8" model comes with a detailed Teacher's Guide containing activities in basic science, solar energy, and energy conservation. Grades 3-9.
Expand student's understanding of energy costs with this model of a passive solar house. The 11" x 11" x 8" model comes with a detailed Teacher's Guide containing activities in basic science, solar energy, and energy conservation. Grades 3-9.
50 specimens approximately 1-1/2". Includes industrial minerals, gem-type minerals, rock-forming minerals and igneous, sedimentary and metamorphic rocks plus Study Guide. Grades 5-12. Ages 10-18.
50 specimens approximately 1-1/2". Includes industrial minerals, gem-type minerals, rock-forming minerals and igneous, sedimentary and metamorphic rocks plus Study Guide. Grades 5-12. Ages 10-18.
Set includes: letter "e", w.m.; animal hairs, w.m.; natural fibers, w.m./ synthetic fibers, w.m.; bacteria types, sm.; pollen grains, w.m.; Starch grains, w.m.; trichina, w.m; cornea of insect eye, sec.; body louse, w.m.; cat flea, w.m.; butterfly wing to show scales, w.m.; Mosquito larvae, w.m.; Mosquito head, w.m.; Fly leg, w.m.; Honeybee wings, w. m.; Honeybee sting, and poison sac, w.m.; feather, w.m.; Paramecium. w.m.; human blood, sm.; Yeast budding, sm.; plant hairs, w.m.; Corn stem, c.s.; Basswood stem, c.s.; Starfish eggs in cleavage, w.m.
Set includes: letter "e", w.m.; animal hairs, w.m.; natural fibers, w.m./ synthetic fibers, w.m.; bacteria types, sm.; pollen grains, w.m.; Starch grains, w.m.; trichina, w.m; cornea of insect eye, sec.; body louse, w.m.; cat flea, w.m.; butterfly wing to show scales, w.m.; Mosquito larvae, w.m.; Mosquito head, w.m.; Fly leg, w.m.; Honeybee wings, w. m.; Honeybee sting, and poison sac, w.m.; feather, w.m.; Paramecium. w.m.; human blood, sm.; Yeast budding, sm.; plant hairs, w.m.; Corn stem, c.s.; Basswood stem, c.s.; Starfish eggs in cleavage, w.m.
Our Swivel mount Sign Frames for retractable belt stanchions enable setting and locking the frames in 8 different viewing angles. These exclusive Beltrac post frames are the best in the industry. They feature radius corners, eliminating sharp edges near your customers for safety and sleek design. Each frame includes twin clear acrylic panels designed to accept regular 8 1/2" x 11" printed paper. Choose between a slotted frame top for easy graphic change or a fully enclosed frame for more tamper proof signs or advertising display.
Our Swivel mount Sign Frames for retractable belt stanchions enable setting and locking the frames in 8 different viewing angles. These exclusive Beltrac post frames are the best in the industry. They feature radius corners, eliminating sharp edges near your customers for safety and sleek design. Each frame includes twin clear acrylic panels designed to accept regular 8 1/2" x 11" printed paper. Choose between a slotted frame top for easy graphic change or a fully enclosed frame for more tamper proof signs or advertising display.
Our Swivel mount Sign Frames for retractable belt stanchions enable setting and locking the frames in 8 different viewing angles. These exclusive Beltrac post frames are the best in the industry. They feature radius corners, eliminating sharp edges near your customers for safety and sleek design. Each frame includes twin clear acrylic panels designed to accept regular 8 1/2" x 11" printed paper. Choose between a slotted frame top for easy graphic change or a fully enclosed frame for more tamper proof signs or advertising display.
Our Swivel mount Sign Frames for retractable belt stanchions enable setting and locking the frames in 8 different viewing angles. These exclusive Beltrac post frames are the best in the industry. They feature radius corners, eliminating sharp edges near your customers for safety and sleek design. Each frame includes twin clear acrylic panels designed to accept regular 8 1/2" x 11" printed paper. Choose between a slotted frame top for easy graphic change or a fully enclosed frame for more tamper proof signs or advertising display.
This apparatus is used to demonstrate and teach the basic principle of an electric meter. Apparatus consists of a 3.75" (90mm) dia. air coil wound on an acrylic tube with an acrylic plate in the center to hold a compass. The coil has multiple tappings of 50, 100 and 200 turns, and also has a built-in potentiometer for varying the current, these features allow multiple readings. Operates on one "AA" battery (not included). Includes one compass. Base 7.34" (195mm) x 4.75" (120mm) x 0.5" (12mm). Total height 4.25" (110mm).
• Build hovercraft that glides across smooth floors water on a cushion of air
• Experiment with propellers and impellers to learn about air pressure and air flow
• Learn about air pressure and air flow
• Full-color, 32-page experiment manual
• 59 building pieces.
Learn how even though air is invisible, it still has mass and can support very heavy objects under the right circumstances. The models in this kit use a unique blower motor and a safe, soft-bladed fan to drive a series of models. The blower motor uses an impeller to increase the air pressure under the hovercraft. The fan creates a stream of air to push the vehicle forward. Using these components, you can build and investigate the hovercraft and other machines that rely on air and air pressure to function. Construct a batting machine that tosses a ball upward on a stream of air. Assemble a basketball launcher and practice shooting hoops with air power. Make a fan-driven car that drives forward, propelled by a stream of air. Experiment to see how much weight your hovercraft can support.
• Set up your lab and learn how to safely handle lab equipment and chemicals
• Professional quality equipment helps you make the most of your experiments
• Learn about indicators with litmus solution and write a message in invisible ink.
• Experiment with air pressure, surface tension, and physical properties of fluids
• Get exposure to a broad range of chemical phenomena
• Provides clear instructions, explanations, and asks and answers questions
• Thorough safety precautions and instructions ensure safe experimentation.
• 80-page, full-color experiment manual
• 125 diverse experiments.
• Ages 10 and up.
Enroll in CHEM C1000 and prepare for a lifetime of fascination with this essential science through 125 diverse experiments. Start with an introduction to the field of chemistry and famous chemists. Set up your lab space and learn how to safely handle the lab equipment and chemicals. Learn about indicators with litmus solution and write a secret message in invisible ink. Test the inks from your colored markers on the chromatography racetrack to reveal their different color components. Experiment with air pressure, surface tension, and the physical properties of fluids. Experiment with two well-known metals, iron and copper. Investigate carbon dioxide. Dissolve metals with electrochemical reactions. Explore water and its elements, saturated and unsaturated solutions, and crystals. Split water into hydrogen and oxygen with electrolysis, and form oxygen from hydrogen peroxide. Experiment with soaps, detergents, and emulsions of water and oil. Investigate chemistry in the kitchen by experimenting with sugar, honey, starch, eggs and proteins, fatty acids, and calcium. Begin to build a strong foundation in chemistry with exposure to a broad range of chemical phenomena and hands-on laboratory experiences. This kit provides clear instructions for preparing and performing the experiments, offers safety advice, offers explanations for the observed occurrences, and asks and answers questions about the results. Thorough safety precautions and instructions ensure safe experimentation. Professional quality equipment helps you make the most of your chemistry experiments. The 80-page, full-color experiment manual guides aspiring young chemists through each of the 125 experiments. Ages 10 and up.
• Build spectacular models and devices, such as a wind tunnel and a hydraulic lift
• Study advanced topics like fluid dynamics, energy, hydraulics, and pneumatics
• Investigate how air & water rest and flow, what they can carry and how they move
• More than 212 parts are included in this kit
• Learn why a streamlined shape lets a car drive faster
• Learn how power plants convert a current of water into electrical current
Physics Pro is our biggest, most advanced physics kit. With this kit, you can continue your study of statics and dynamics from previous lessons and begin your study of more advanced topics in physics, including fluid dynamics, energy, oscillation, hydraulics, and pneumatics. By adding advanced topics like fluid dynamics to your physics repertoire, you can now build some really spectacular models and devices, such as a wind tunnel, pneumatic shocks, and a hydraulic lift. You will see how physics extends far beyond the classroom, giving us an amazing set of tools that can be applied in the real world to engineer marvelous things. The main focus of the kit is the behavior of the two most important fluids in our world — water and air — and objects immersed in them. You will investigate how air and water rest and flow, what they can carry and how they move. With experiments and models, you will find out what forces work on them and what kinds of energy they possess. You will learn how ships float and airplanes fly, why a streamlined shape lets a car drive faster and how power plants convert a current of water into electrical current. The 96-page, full-color experiment manual has two major sections. In the first part, you will enter the physics lab, where you will get to know the properties of air and water and become familiar with currents and energy. There is a series of 17 experiments in which you will start building smaller models. In the second part, you will move on to the workshop, where you will build 14 larger models of complex real-world devices. More than 212 parts are included in this kit, which are compatible with our other Physics kits.
• Almost every form of energy we use originates as energy from the sun
• Explore the topic of solar energy, focusing on photovoltaic cells
• Learn how solar cells transform light into electrical energy
• Learn how motors and mechanical devices can optimize the work done by energy
• Build a praying mantis model that moves like an insect and is solar powered
In one way or another, almost every form of energy we use originates as energy from the sun. Solar energy directly powers photovoltaic cells and thermal collectors. Indirectly, we get power from plants grown by the sun, oceans heated by the sun, and Earth's weather systems sustained by the sun. Even the energy stored in fossil fuels originated as energy from the sun, captured by plants and animals millions of years ago. Physics Solar Workshop explores the topic of solar energy, focusing on photovoltaic cells. By building 12 models and conducting 30 experiments, you will learn how solar cells transform light into electrical energy, and how motors and mechanical devices can optimize the work done by this energy. You will build different types of vehicles and machines to demonstrate how gears can convert and transform power for different needs. There are 320 parts, which are also compatible with the other kits in our Physics line. The 64-page book offers illustrated instructions for the projects. Developed with Greenpeace in Germany. Ages 8 and up.
• Kit includes more than 300 building pieces
• Build a windmill, two-speed crane, force scale, sail car, mars robot, and more
• Experiment with gears, levers, screws, inclined planes, pulleys, wheels and axles
• Learn and understand the most fundamental physics equations
• It is a 64-page, full-color experiment manual
• Centrifuge, pinball, centrifugal switch, ship's lantern, and dozens of other models
• Ages 8 and up
Force = mass x acceleration and don't forget to factor in the fun. This kit studies the Science of Matter and Energy. Through building 36 models and conducting subsequent experiments with the models, you will learn the fundamental laws of mechanical physics. This hands-on approach is both fun and effective because the principles of physics are demonstrated right in front of you. Physics Workshop includes more than 300 building pieces. The full-color 64-page manual presents assembly instructions, experiments and explanations in a richly-illustrated, easy-to-follow manner. 73 Experiments and Activities: Build a windmill, crane, sail car, mars robot, hammer machine, centrifuge, scale and dozens of other models. Experiment with simple machines: gears, levers, screws, inclined planes, pulleys, wheels and axles. Learn and understand the most fundamental physics equations. Read about amazing real-world applications for physics.
• Build your own motorized vehicles and machines with a wireless remote control unit
• Unique six button infrared remote control
• Three motors can be combined to make complex vehicles and machines
• Assemble up to 10 models
• 48-page illustrated color instruction book included
• Kit comes with everything you need
• Ages 8 and up
The unique six button infrared remote allows you to control three different motors simultaneously, moving each of them forward or in reverse, with easy-to-activate touch sensors. The three motors can be combined to make complex vehicles and machines in numerous configurations limited only by your imagination. Assemble ten models demonstrating different ways in which the motors can be used including a bulldozer, car, three-wheeler, crane, antique car, plow, folding car, formula one racer, three-blade dozer, and robotic arm. After you have built the models in the instructions, you can design your own remote control creations! The kit comes with three motors, remote control unit, battery holder, and building blocks. Collaborate with your fellow junior engineers to build fantastic and functional remote-control creations! The 48-page color instruction book gives illustrated step-by-step instructions for the models to help children learn through play and develop their mechanical understanding, creative thinking skills, and hand-eye coordination.
• Durable herringbone weave design
• Rubberized fabric-tire links
• Ideal for schools, industrial or factory entrances
• Easily rolled for cleaning
• Overall thickness: 5/8"
• Available in black only
• Available in 6 Sizes
This 17in x 25in interlocking linked mat utilizes fabric impregnated rubber secured with 12 gauge galvanized spring steel rods. Dirt falls between herringbone pattern for easy cleaning-simply roll up mat and sweep or hose the floor underneath. Overall thickness, 5/8" Available in black only. Available in six size. Ships UPS or FedEx Ground.
• 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.
• One of our most popular vests for over 20 years
• Durable Vinyl coated mesh
• Hook/loop side closures
• Reflective panels front & back
• CROSSING GUARD printed on front and back
• Available in 2 sizes
Absolutely the finest safety vest on the market. Durable fluorescent orange woven vinyl-coated with Reflexite Prismatic tape front and back with printed legend CROSSING GUARD. Vertical stripes over shoulders and on hook-and-loop adjustable belts provide 360 degrees of reflective visibility. Hoop-and-loop front closure.
• Front and back of the vest is 18" across from side to side
• 12 inch belts on each side for adjustability
• Measures 48 inches or 57 inches from bottom hem on the front across the shoulders to bottom hem on the back