A convenient classroom set of 5 borosilicate glass Erlenmeyer Flasks. Sets consist of one each of 50 ml, 125 ml, 250 ml, 500 ml, and 1000 ml Flasks. The shipping weight is 2.80 lbs.; the dimensions are 10.5" x 9.25" x 9.75".
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
• 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.
Prismatic reflectors for full, even light pattern, perfect for professional working conditions. Brighter beam with a 100% brighter Krypton bulb. Toolbox-tough polypropylene construction resists impact, gas, grease, chemicals, water, corrosion. Scratch-resistant, break-resistant lens. Full lifetime warranty. Made in the U.S.A. Switches torture-tested to 100,000 on/off cycles. Resistant to extremes of temperature and humidity. Uses 2 "D" Batteries.
NOTE: Expect shipping delays with this product.
Line-Up® Solvent-Based Pavement Striping Spray Paint is a fast-drying product that provides long-lasting durability on outdoor pavement, as well as on indoor surfaces. Pavement Striping Paint is available in the most popular pavement striping colors and also a black for covering up old stripes. VOC compliant. Free of lead hazards. Non-clogging and fast-drying. Available in 5 colors.
Recommended Uses: Use on asphalt, concrete, brick and stone. Great for use in parking lots, school grounds, road surfaces and more.
The control unit for fischertechnik robotic models. Special features of this compact and powerful controller include a color touch screen with swipe gesture recognition. voice recognition, Bluetooth and WiFi capability, a built-in speaker, SD card slot, USB Host, and much more.
WiFi capability, a built-in speaker, SD card slot, USB Host, and much more.
The TXT 4.0 Controller offers plenty of new features with its 512 MB RAM and 4 GB eMMC memory, the three servo outputs, and a capacitive touch display that supports swipe gestures. The improved WLAN and Bluetooth module offers the right wireless interface for numerous applications. Another interface is the USB host port, to which, for example, the fischertechnik USB camera or USB sticks can be connected. Up to 8 additional controllers can be connected to one controller as extensions. The flat housing allows the controller to be perfectly integrated into the models. To always be up to date, firmware updates are automatically downloaded via the cloud, preserving custom programs. With the software ROBO Pro Coding, programming can be created both graphically and with Python!
ROBO Pro Coding is operating system independent and can also be used with mobile devices (Android/iOS). With an additional app (Android/iOS), the TXT 4.0 controller can also be controlled via voice recognition. Further features of the controller are:
- Processor: Arm® dual Cortex® -A7 650 MHz + Cortex®-M4
- Memory capacity: 512MB DDR3 RAM, 4 GB eMMC
- Memory expansion: Micro SD card slot
- Color touch display: 2.4", 320 x 240 pixels, capacitive, allows swipe gestures
- Flat design - dimensions: 90 x 90 x 17.5mm
- 8 universal inputs: digital/analog 0-9VDC, analog 0-5kΩ
- 4 fast counting inputs: digital, frequency up to 1 kHz
- 3 servo outputs 5V (max. 2A), short-circuit proof
- 4 motor outputs 9V/250 mA (max.1A): speed infinitely variable, short-circuit proof, alternatively 8 single outputs e.g. for LEDs
- Combined Bluetooth/WLAN radio module: Bluetooth 5.0 (BR, LE & EDR), WLAN dual band 2.4 GHz and 5 GHz 802.11a/b/g/n/ USB 2.0 client: Mini USB socket for connection to PC
- USB host interface: USB-A socket e.g. for fischertechnik USB camera or USB sticks
- Camera interface: via USB host, Linux camera driver integrated in operating system
- Integrated loudspeaker for playing sounds
- 2x pin header 6-pin: for extension of inputs and outputs as well as I²C interface
- Linux based open source operating system, firmware update via cloud, USB stick, micro SD card
- Programming with ROBO Pro Coding (graphical and Python), C/C++ compiler (not included) - further programming possibilities via REST interface
- Control also possible via voice recognition app (Android / iOS)
- Available output voltages: 9V, 5V and 3.3V
- Power supply: 9VDC socket 3.45 mm or fischertechnik sockets 2.5mm
- Required accessory: Accu Set or Power Set
• Durable, thick walled plastic bases won't rust, dent, or crack
• Sturdy plastic wheels for easy relocation
• 60" Square plastic post eliminates sign twisting
• Withstands strong winds without tipping over when filled with sand
• Large fill and drain holes
• Zinc plated hardware for attaching a sign included
• Available with 18"D x 12"H or 24"D x 12"H base
• Available in 4 colors
• Made in the U.S.A.
* Signs not included
The Roll-A-Post™ Portable Sign Post has a thick walled plastic base that won't chip, crack, or crumble like concrete. The hollow base has a large fill hole for sand. When filled with sand the Roll-A-Post withstands strong winds without tipping over. The plastic square tube post has reinforcing internal cross bars making it more durable and stable than round posts. Unlike round posts, the square post prevents sign twisting. 60"L post with pre-drilled holes for multiple sign sizes with Included zinc plated hardware. Made in the U.S.A.
* Signs not included
• 100% Nylon micro mesh fabric
• Lightweight and breathable for comfortable wear
• Neck and arm holes offer full range of motion
• Available in Fluorescent Green or Orange
These hi-viz Mesh Vests easily separate students into teams for group activities, making them a great addition to any class. Featuring a 100% nylon micro mesh fabric, these vests are lightweight and breathable. These vests offer a full range of motion.
• 41" high flag/cone combinations
• Checkered flags can be removed to be used as hand-held flags for traffic control
• Cones are 18" high with a 8.25" square base
• All cones include weighted cone stabilizer to prevent tipping from strong winds
• Cone is made with 100% PVC polyvinyl chloride (contains no phthalates)
• Cones have UV inhibitors for resistance to fading
• Good visibility under all weather condition
• Cone will not mar floors.
These colorful flag/cone combinations are 41" high. Flags can be removed from the cone adapter to be used as hand-held flags for traffic control. Cones are 18" high. All cones include weighted cone stabilizer to prevent tipping from strong winds. The cones are constructed of brilliant fluorescent orange vinyl. Non-porous, dirt-resistant surface can be easily cleaned. Will not mar floors.
• Message Displayed on Large Sheeted area 8.1” x 36”
• Stackable & durable made from UV stabilized HDPE material
• Easy set up and relocation
• Secures in place with recycled rubber base that slides over the top
• Designed to withstand impact
• Overall dimensions: 44.6"H x 8"D x 15"W
• 7 legend options
• Available with 15, 20 or 30 lb base.
Affordable, Breathable, High Visibility Safety Outerwear. Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price. Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price.
Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
• ANSI/ISEA 107 Class E compliant pants for high visibility and breathability.
• Designed for use in multipurpose applications.
• Fluorescent yellow-green background material for excellent daytime visibility.
• 2 inch silver reflective tape reflects light for 360° nighttime conspicuity.
• Breathable. Test Method ASTM E96.
• Waterproof, breathable fabric for all season comfort.
• Stitched and taped sealed seams for 100% waterproof protection.
• Non-conductive, non-corrosive hardware.
• Elastic waist pants with adjustable drawcord.
• Side openings on pants with flap closure.
• Hook & loop take-up straps on ankle cuffs for adjustable fit.
• Mildew resistant.
• Lightweight, multi-season.
• Rainguard zipper closure with interior storm flap.
• Comfort collar, fleece-lined.
• Three fused fabric layers.
• Breathable, waterproof and wind resistant.
• Comfortable polyester/spandex outer shell fused with fleece liner.
• Two exterior slash pockets with rain guard zipper closure.
• Channeled hem with cinch cord and cord lock for adjustable fit.
• Deluxe adjustable cuffs.
• Contoured waist.
Women's Class 2 polyester bonded with fleece. Contoured waste for better fit. 3 fused fabric layers: soft outer shell, weather resistant middle and warm brushed fleece interior. Breathable, water and wind resistant. Comfortable polyester/spandex. Draw string hem with cord stopper. Black bottom hides dirt and grime. 2 zippered slash pockets. Adjustable sleeve cuffs. Zipper closure with tunnel collar. Conforms to ANSI 107 standard.
This fluorescent yellow armband provides high visibility day or night, has sonic wedged edges, and is water resistant. Imprinted with "Crossing Guard" in black.
Neodymium (NdFeB) is the most powerful magnet material in the world. Neodymium is classified as an element in the lanthanides section of the Periodic Table. These are the super strong magnets you have heard about that can attract through your hand.
Set of powerful alnico magnets with keepers. Set consists of 2 bar magnets 80mm x 15mm x 10mm; a small horseshoe magnet 25mm tall x 8mm wide; and a large horseshoe magnet 35mm tall 15mm wide.
Designed to demonstrate the attraction-repulsion theory of magnetism. Students use five colored ceramic washer magnets and a 6" dowel to perform this popular experiment and others. Includes activity booklet and storage case.
Equilateral. 45mm side. Has one hole for adding fluids to study refraction and dispersion.
Equilateral. 45mm side. Has one hole for adding fluids to study refraction and dispersion.
Construct & operate a functioning DC motor that demonstrates the uses of the armature, field coil, & commutator. Parts provided include: coil of copper wire, base, field poles, armature core, brushes, & all fasteners. Ages 10 and up. No tools needed for assembly except scissors. Comes complete with 12-page instruction booklet which includes illustrations, detailed assembly instructions, "How a Motor Works". 3-6 volt battery required for operation (not included).
Construct & operate a functioning DC motor that demonstrates the uses of the armature, field coil, & commutator. Parts provided include: coil of copper wire, base, field poles, armature core, brushes, & all fasteners. Ages 10 and up. No tools needed for assembly except scissors. Comes complete with 12-page instruction booklet which includes illustrations, detailed assembly instructions, "How a Motor Works". 3-6 volt battery required for operation (not included).
Features a metal case with front and rear glass windows for preventing air currents from affecting the deflection of the leaves. Leaves are gold and aluminum. Leaf support rod is held in place by an insulating plastic sleeve. Graduated scale is provided for measuring the deflection from 0 to 90 degrees. Includes instructions. Dimensions: 6"x4"x 8".
Features a metal case with front and rear glass windows for preventing air currents from affecting the deflection of the leaves. Leaves are gold and aluminum. Leaf support rod is held in place by an insulating plastic sleeve. Graduated scale is provided for measuring the deflection from 0 to 90 degrees. Includes instructions. Dimensions: 6"x4"x 8".
22 Gauge insulated copper wire. 100 ft. Color: Red
22 Gauge insulated copper wire. 100 ft. Color: Red
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.