Discover how scientists are able to learn about the world around us by studying how light interacts with matter. Spectrophotometry gives students an understanding of the principles of spectral analysis and explains the relationship between absorbance and transmittance. Students then go inside the lab to put this information into action as they perform serial dilutions, develop a standard curve and determine the concentration of aspirin in two unknown solutions using a spectrophotometer. In the process, they use proper scientific procedures and come to understand that measurement errors may affect calculations. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.
• Eyepieces - 10X
• Objectives - Zoom
• Magnification - 20X to 100X
• Illumination - Mirror
• Mirror adjustment knob
• Sturdy plastic construction
• Tamper resistant viewing tube
• Shock resistant stand
• Achromatic ground and polished glass lenses
Permanently attached reversible mirror, concave on one side while surface on the other to direct natural light onto the specimen. Rotating the optical tube brings specimen into focus. Zoom range from 25x to 100x by moving the eyepiece tube up or down. Size and Weight - 4" x 5" x 7.5", 1 lb. Warranty-5 Years
Eyepieces - 10X Objectives - Zoom Magnification - 20X to 100X Illumination - Mirror. Mirror adjustment knob. Sturdy plastic construction. Tamper resistant viewing tube. Shock resistant stand. Achromatic ground and polished glass lenses. Permanently attached reversible mirror, concave on one side while surface on the other to direct natural light onto the specimen. Rotating the optical tube brings specimen into focus. Zoom range from 25x to 100x by moving the eyepiece tube up or down. Size and Weight - 4" x 5" x 7.5", 1 lb. Warranty-5 Years
Reversible Northern and Southern Skies. Printed in 2 colors. Compare night skies from the northern and southern hemispheres with royal blue star chart. Constructed of strong, plasticized material, this chart highlights constellations, stars, nebulae and the milky way. Chart can be rotated to reflect any date of observation. Dry erasable. Measures 44" length by 44" width. For grades 6-12. Ages 11-18.
• 12" high with 8.25" square base
• Made with 100% PVC polyvinyl chloride (contains no phthalates)
• Conical and top of base is one continuous layer
• Brilliant color with UV inhibitors for resistance to fading
• Good visibility under all weather condition
• Wide body design ensures stability
• Able to return to their original shape after impact
• Will not mar floors.
• Use as a traffic cone, or for hundreds of phys ed activities
• Available in 3 sizes
12" high with 8.25" square base
18" high with 10.75" square base
28" high with 14.5" square base
These cones are constructed of brilliant fluorescent orange vinyl. Non-porous, dirt-resistant surface can be easily cleaned. Will not mar floors. Virtually indestructible. Will collapse under pressure then spring back into shape. Easy stacking. Can be used for lane markers, crowd control, obstacle courses, boundary markers, marking danger areas, repair areas and driver training. Available in 6 Sizes.
Build any type of voltaic cell with this safe, sturdy kit. Functions as a storage cell, coulometer, dry cell, or Daniel cell. Includes: opaque polypropylene 8-oz cell body with low profile, wide base to resist spills; porous cup, instructions, 10 labeled electrodes (2 each, copper, lead, zincs; 1 each, aluminum, carbon, iron, nickel). Screw-on plastic rim has 2 brass electrode holders which adjust to hold round or flat electrodes.
Build any type of voltaic cell with this safe, sturdy kit. Functions as a storage cell, coulometer, dry cell, or Daniel cell. Includes: opaque polypropylene 8-oz cell body with low profile, wide base to resist spills; porous cup, instructions, 10 labeled electrodes (2 each, copper, lead, zincs; 1 each, aluminum, carbon, iron, nickel). Screw-on plastic rim has 2 brass electrode holders which adjust to hold round or flat electrodes.
The Garrett Rechargeable Battery Kit is a great metal detector accessory for your Garret Hand-Held Super Scanner Metal Detector (SA114P). The Recharger Kit allows for recharging the metal detector without the need to remove the battery. This Garrett Recharger Kit provides an additional source of power for an extended use of the metal detector. The Garrett Recharger Kit comes with a cadmium-free Ni-MH battery and a 110 V charger for faster charging.
Super Stripe Traffic Paint is heavy-duty and lays miles of lines so you get more stripes per dollar. One case will give you about 2,400 linear feet of bright crisp 3" lines. Perfect for parking lots, floors and safety zones. 12 cans/case.
The surface mounted Fixed Base is designed for permanent applications, and secures the upright with cap screws and washers. The bases can be mechanically fixed to surfaces with the SS212P Anchor Kit (See below).
Dimensions: 8” x 8” x 1”
The surface mounted Quick Release Base has a unique quick release feature, and is designed for permanent or long term applications. The quick release feature provides the ability to change out or remove uprights in less than five seconds without the use of tools or special equipment. The base can be mechanically fixed to surfaces with the SS212P Anchor Kit (See below).
Dimensions: 8” x 8” x 1”
• Rapidly removes Graffiti and Tagging Obscenities!
• Safe, Bio-degradable, Non-toxic, Non-Caustic and Non-Flammable!
• Will Not Run Off Vertical Surface!
• Originally developed for Public Works Departments and State DOT’S
Works on:
• Street Safety Signs
• Bridges
• Restroom Privacy Panels
• Tile
• Metal, Brick, and Sided Buildings
• Plastic Playground Equipment
• Concrete Walls
• Railroad Cars
• Trees
• Rocks
First Impressions are lasting Impressions! If you are responsible for removing graffiti, you know how frustrating and expensive this task can be. Whether you are a governmental agency, a facility manager or a maintenance supervisor and you need to remove a simple declaration of love or a gang symbol, using TAGSTER will solve your problem. TAGSTER is extremely versatile and can be used on variety of different surfaces like metal, concrete, wood, and plastic. TAGSTER was originally developed for Public Works Departments and State DOT’S who have been plagued for years by vandals that spray paint, obscenities, crude language and declarations of love on buildings, equipment, traffic signs, restrooms, playground equipment and bridge embankments.
A unique hands-on science teaching aid that is visually exciting to students. Students are able to watch what they see and read in a science book happen right before their eyes. The Teaching Tank is approximately 12" x 12" x 1/2" and can be easily dismantled and cleaned with mild soap and water.
A robot fit for the circus! With this kit, you can build a robot that walks, step by step, along a tightrope. How? Thanks to the robot’s main component, a gyroscope, it can maintain its balance and perform this fun trick without falling over! Through eight experiments, you can explore the astonishing powers of the motorized gyroscope and understand the physics behind its amazing behaviors. Experiment with getting the robot to walk on different surfaces: a tightrope, on a solid tabletop, on a soft surface, and even on your arm! You can also experiment with the balancing behavior of the motorized gyroscope by itself, testing its ability to balance on its edge, on your finger, on a pole, and dangling from a string.
The kit includes parts to build the robot and experimental setups, including a frame for the tightrope. By constructing the robot and performing the experiments with the motorized gyroscope unit, young engineers can learn about the science of gyroscopic devices and the indispensable role they play in our lives.
A full-color, 24-page, illustrated experiment manual provides step-by-step assembly instructions and scientific explanations.
Ages: 6+
Experiments: 8
Piece Count: 43
Manual Pages: 24
• An introductory tour of chemistry with 28 classic experiments
• Discover the colorful effects of acids and bases
• Make fizzy and foamy reactions and write messages with invisible ink
• Learn about reactions between solids, liquids, and gases
• 48-page, full-color experiment manual
• Simple instructions for experiment
• Clear explanations of what happened and why
• Ages 10+
Learn about reactions between solids, liquids, and gases. Discover the colorful effects of acids and bases. Perform astonishing "magic" tricks for your friends. Make fizzy and foamy reactions. Write messages with invisible ink. Investigate metals and salts in electrochemical experiments with a 9-volt battery (not included). Learn for yourself how chemistry goes far beyond textbooks and laboratories to explain occurrences that happen around us every day. The 48-page,full-color experiment manual gives simple instructions for setting up and performing each experiment, and then clear explanations of what happened and why. This kit is ideal for children who are interested in chemistry but who are not yet ready for a more advanced chemistry set. It serves as an excellent introduction to our other chemistry sets.
• This kit provides the tools and instructions to learn how electronics work.
• The innovative snap-together blocks make learning electronics fun and accessible.
• The components in the kit include capacitors, resistors, transistors, and more
• 64-page, full-color manual guides you through 70 circuit building experiments
Fun Circuit Building Experiments for Beginners Construct circuits with colorful electric building blocks to learn about electricity and how electronic devices work. With the innovative snap-together blocks in this kit, children eight and up can safely and easily begin experimenting with electronic circuits. These building blocks are specially designed to make learning electronics fun and accessible. Because the blocks are brightly colored and have unique shapes, it is easy to follow the assembly diagrams to construct functional circuits. And because the circuit symbols are printed directly onto the blocks, you can quickly become familiar with the symbols and learn how to read circuit diagrams. The fun building projects include an alternating blinker, a police siren, an ambulance siren, an alarm system, a light detector, a conductivity tester, a rain warning system, a timer, and logic circuits. The electronic components in this kit include capacitors, resistors, transistors, LEDs (light emitting diodes), a phototransistor, a switch, 30 contact blocks, cable blocks, a battery holder, a speaker, and a sound integrated circuit. The 64-page, full-color experiment manual guides you through 70 circuit building experiments with easy-to-follow diagrams. This kit provides kids with the tools and instructions they need to experiment with their own hands and learn firsthand how electronics work.
Hydropower has been used for hundreds of years in watermills and is now commonly used to generate electricity in applications such as hydroelectric dams and tidal power plants. Explore the power of water by building models and conducting experiments with them. Learn about how different devices are used to extract useful energy from moving water — from a waterwheel in a small stream to a giant turbine in a tidal power station.
Build a waterwheel, a sawmill, and a hammer mill to harness the energy of moving water to do different types of physical work. Investigate the intriguing properties of water by performing experiments involving surface tension, adhesion, and cohesion. Learn about water pressure by building a water tower, communicating vessels, and a water fountain.
Construct a hydroelectric power station to generate electricity and light an LED. Learn about where the energy in ocean waves, tides, and rivers comes from, and discover how we can generate electricity from them. The full-color, 32-page experiment manual offers illustrated instructions and scientific information.
12 Experiments and building projects
Harness mechanical energy from water to do physical work
Generate electricity to light an LED Learn the physics of water turbines
Discover why hydropower is a promising source of energy.
Ages: 8+
Experiments: 12
Piece Count: 105
Manual Pages: 32
Product Dimensions: 14.6 x 11.5 x 2.3 in.
Product Weight: 2.1 lbs
Manual Dimensions: 5.5 x 8.25 in.
Batteries Required: N/A
Country of Origin: Taiwan
Year Released: 2009
Discover the science of living things with this complete introductory microscope kit. The beautifully illustrated experiment manual guides you through observations of many living specimens found in and around your home: onion cells, pond water, chloroplasts, plant stem cross sections, microorganisms, mouth cells, meat cells, different types of hair and fur, dust mites, bugs, pollen in honey, and much more.
See how an onion cell shrivels and how an paramecium wiggles. Analyze the differences between the hair on your head and the sheep’s hair in your wool sweater. The kit includes slides, cover slips, and many helpful tools. Learn how to use these tools to prepare slides and how to use the microscope to examine them.
Investigate how the lenses in a microscope bend light to magnify images. When the ocular lens, or eyepiece lens, works together with the three objective lenses, the result is a total magnification power of 60x, 150x, or 600x. The microscope has a battery-powered light to light up the specimens. The full-color, 32-page manual covers microscope setup, usage, and many fascinating observations of biological specimens.
Discover the science of living things with this complete introductory microscope kit. The beautifully illustrated experiment manual guides you through observations of many living specimens found in and around your home: onion cells, pond water, chloroplasts, plant stem cross sections, microorganisms, mouth cells, meat cells, different types of hair and fur, dust mites, bugs, pollen in honey, and much more.
See how an onion cell shrivels and how an paramecium wiggles. Analyze the differences between the hair on your head and the sheep’s hair in your wool sweater.
The kit includes slides, cover slips, and many helpful tools. Learn how to use these tools to prepare slides and how to use the microscope to examine them. Investigate how the lenses in a microscope bend light to magnify images.
When the ocular lens, or eyepiece lens, works together with the three objective lenses, the result is a total magnification power of 60x, 150x, or 600x. The microscope has a battery-powered light to light up the specimens. The full-color, 32-page manual covers microscope setup, usage, and many fascinating observations of biological specimens.
Ages: 8+
Experiments: 11
Piece Count: 13
Manual Pages: 32
Product Dimensions: 8.5 x 12.5 x 4.9 in.
Product Weight: 1.5 lbs
Manual Dimensions: 5.5 x 8.25 in.
Batteries Required: 2 AA
Country of Origin: China
Year Released: 2020
• Introductory chemistry set designed specifically for young kids
• Conduct experiments to identify different chemicals
• Discover the invisible gas carbon dioxide and its very visible effects
• 48-page manual guides young chemists through 25 experiments
Kick off a chain reaction of fun-filled experiments with this introductory chemistry set designed specifically for young kids. Junior chemists can safely explore simple chemistry using the tools in this kit and common household substances from the kitchen, bathroom, and laundry room. Learn how to use basic chemistry equipment such as filters, test tubes, pipettes, and measuring spoons, and beakers. Make your own test tube racks out of plaster and learn about the chemical reaction that formed them. Conduct experiments to identify different chemicals using reactions, heat, evaporation, and crystallization. Examine the composition of inks and dyes with chromatography experiments, where colors magically separate from one another on a filter paper disk. Explore the properties of water, soaps, and oils. Experiment with acids and bases using indicators (pH strips and cabbage juice) to identify them. Make fizzy reactions with acids and bases to dissolve shells and inflate balloons. Discover the invisible gas carbon dioxide and its very visible effects. The full-color, 48-page manual guides inquisitive young chemists and their adult supervisors through safely conducting each of the 25 experiments.
It’s time to start mixing things up! In this pretend STEM scenario, you are a chemist for a bath and body products company and it’s your job to make and test different cosmetic products. Use the tools in your laboratory to employ different scientific techniques and essential chemistry principles to make soaps and bath bombs. Try out different additives to affect the color, smell, and other qualities of the products you make.
Real science and pretend play come together in this activity-filled kit that can be used alone or as an extension of the Ooze Labs Chemistry Station (a Parents’ Choice Silver Honor winner!). As you mold different glycerin soap shapes, you learn about the chemical properties of soap that help it pick up and wash away dirt. While you’re concocting bath bombs, you learn about how acids and bases combine to form fizzing reactions, and what a pH level is. Expand your cosmetics knowledge with an overview of the biology of skin care and other science related to soap and bath products. All materials and chemicals are non-toxic.
Ages: 6+
Experiments: 10
Piece Count: 35
Manual Pages: 24
Wind is one of the most promising sources of clean, renewable energy available today. With this kit, you can assemble a realistic wind turbine complete with electric generator and adjustable rotor blades that are designed with complex aerodynamic curves to look and work like modern-day wind turbine blades. Then, conduct experiments to optimize the turbine’s performance by adjusting the angle of the blades and discover how to use the wind turbine to light up an LED and charge a rechargeable battery. Convert the generator into an electric motor and assemble a small electric car to demonstrate a tangible application for the stored electricity.
The full-color, 32-page manual offers illustrated instructions and scientific information that explores the different types of wind turbines and windmills, the history of this technology, and how wind energy can be used to power homes and electric cars.
Ages: 8+
Experiments: 5
Piece Count: 38
Manual Pages: 32
• Build a realistic wind turbine to harness power out of thin air.
• Assemble a wind turbine complete with electric generator and adjustable blades
• Conduct experiments to optimize its performance by adjusting the blades
• Convert the wind turbine into an electric fan by using the electric generator
• Build three additional models with the parts included
• Conduct more than 20 experiments with your wind turbine
Build a working wind turbine to harness power out of thin air. Wind is one of the most promising sources of clean, renewable energy available today. Wind energy has been used for centuries to pump water and crush grain in windmills, and is now increasingly being used to generate electricity to power our modern world. Assemble a wind turbine complete with electric generator, adjustable rotors, and wind speed indicator. Conduct more than 20 experiments with your wind turbine. Use the wind turbine to generate mechanical power to lift a heavy weight or generate electricity. Learn the physics of force and motion as it applies to wind power technology. Learn how to measure and calculate the different forces acting on the rotor blades. Read about different types of wind turbines and windmills. The full-color, 32-page experiment manual included. Ages 8 and up.
• Perfect for parking lots, crosswalks, and pedestrian walkways
• Can be used with any size PVC traffic cone
• In an immediate situation, deploy a bar - placed between two traffic cones
• Use to create a quick and temporary visible barrier
• Bar expands from 3.35' to 6.6'
• Includes two rings for hanging any of our 24" x 8" plastic signs shown below
• Color: Yellow/Black, Red/White or Orange/White
The Retractable Cone Bar is perfect for parking lots, crosswalks, and pedestrian walkways. The Retractable Cone Bar can be used with any size PVC traffic cone. In an immediate situation, deploy a bar and place it between two traffic cones to create a quick and temporary visible barrier. Cone Bar expands from 3.35' to 6.6'. Retractable Cone Bar includes two rings for hanging any of our 24" x 8" plastic signs.
A safer and technologically advanced way to study heat coductivity in different metals. The unit consists of four metal strips, steel, brass, aluminum and copper, mounted on a strong plastic base. The strips are 5.25" (135mm) long x 0.38" (9.5mm) wide x 0.11" (2.9mm) thick. Of the total length about 1.13" (28mm) at the end is not plastic backed, so the bars can be immersed in hot water and the rate of conduction of heat can be measured by the strip thermometers mounted on the strips. Plastic base is 7" (175mm) long.
A safer and technologically advanced way to study heat coductivity in different metals. The unit consists of four metal strips, steel, brass, aluminum and copper, mounted on a strong plastic base. The strips are 5.25" (135mm) long x 0.38" (9.5mm) wide x 0.11" (2.9mm) thick. Of the total length about 1.13" (28mm) at the end is not plastic backed, so the bars can be immersed in hot water and the rate of conduction of heat can be measured by the strip thermometers mounted on the strips. Plastic base is 7" (175mm) long.
Tin Metal, reagent, 20-300mesh, granular - 100g.
• 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.