From the highest mountains to the deepest chasms, Earth's terrain is comprised of varying levels and unique features. In Topography, students will learn how the features of Earth's surface are arranged while exploring the art and science of re-creating these terrains on maps. See how forces like earthquakes, volcanoes, water and wind have changed Earth's surface over countless centuries, and learn why studying these changes is important to learning about our planet's past and future. See how cartographers map the floor of the oceans, while an informative demonstration shows students how they can make a simple topographic map of their own. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Just attach a discarded plastic soda bottle to each end of the Tornado Tube, one with water, one empty. Stand the empty bottle on a flat surface, as the water begins to flow down from the full bottle, a vortex will descend from the top with an amazing similarity to a tornado. Bottles not included.
• The Best eye protection available.
• Passed ASTM F803-97 tests by Detroit Testing Labs.
• Made of shatterproof polycarbonate lenses.
• Has adjustable temples.
• Lens is made to perfection with no vision distortion.
• Specs retainer is included in pack.
The Best eye protection available. Passed ASTM F803-97 tests by Detroit Testing Labs. "Official" eyeguard of USRA. Made of shatterproof polycarbonate lenses. Has adjustable temples. Lens is made to perfection with no vision distortion. Specs retainer is included in pack.
• 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.
Clear acrylic trapezoid. With one flat surface frosted to enhance visibility. Bases are 89mm and 40mm. Faces measure 47mm and 35mm.
Clear acrylic trapezoid. With one flat surface frosted to enhance visibility. Bases are 89mm and 40mm. Faces measure 47mm and 35mm.
- 38. 5 x 26. 75 inch Poster
- Ships in a sturdy tube
- Product is Easy to frame
- Great Wall Décor
- Brightens up a room
Take a step back in time with this scientifically detailed poster of the legendary Triceratops! Perfect for dinosaur enthusiasts, students, and educators alike, this high-quality print features intricate illustrations and key anatomical details, providing a comprehensive look at one of the most iconic herbivores of the Late Cretaceous period.
From its distinctive three-horned face to its massive frilled skull, this poster showcases the Triceratops in all its glory, offering a fascinating glimpse into its size, skeletal structure, and evolutionary family tree. Detailed annotations break down each component, making it an ideal resource for learning about the adaptations that made the Triceratops such a formidable presence 66 million years ago.
Whether you're an aspiring paleontologist or a curious collector, this visually captivating piece is a must-have addition to any collection. Bring the ancient world to life with the Triceratops poster—a timeless tribute to the prehistoric giants that once roamed the Earth!
Handy molded plastic magnifier has 2x,6x and 8x magnification lenses.
Steel base. Black enamel finish. Zinc plated, detachable rod. 5" Base
Steel base. Black enamel finish. Zinc plated, detachable rod. 5" Base
Steel base. Black enamel finish. Zinc plated, detachable rod. 4" base
This optional beaker stand is constructed of high-quality cast iron components with three chrome-plated legs. Supports beaker sizes of up to 1000mL while resisting corrosion and discoloration. Three locking grooves cast into the ring of the tripod. Triangle not included.
This optional beaker stand is constructed of high-quality cast iron components with three chrome-plated legs. Supports beaker sizes of up to 1000mL while resisting corrosion and discoloration. Three locking grooves cast into the ring of the tripod. Triangle not included.
Two optically ground 1" double convex polished lenses fitted into black plastic threaded lens mount. Screw-in metal tripod stand. Black finish. Magnifies approximately 10 times.
Two optically ground 1" double convex polished lenses fitted into black plastic threaded lens mount. Screw-in metal tripod stand. Black finish. Magnifies approximately 10 times.
• Helps to mark a safe distance between guests
• Allows a business to be in compliance with government social distancing guidelines
• High visibility fluorescent green
• UV Protect for indoor/outdoor use
• 34% more viewing space compared to 4-sided signs
Schools, retail and industrial facilities need portable signage to provide visibility and awareness related to current concerns. These 3 Sided Safety Sign cones are essential for keeping everyone safe and informed.
Made of brushed aluminum. Gives a fixed tone when struck. Key: C. Frequency: 512.
Made of brushed aluminum. Gives a fixed tone when struck. Key: C. Frequency: 512.
Comes with wooden box with foam lining. Each tuning fork has a specific place in the foam lining die-cut for easy storage. Each set also contains a mallet specially designed with one hard and one soft end, for use with all frequencies of forks. Tuning Fork set of 8. With mallet. In wooden box. Contains one each of 256, 288, 320, 341.3, 384, 426.6, 480, and 512
Comes with wooden box with foam lining. Each tuning fork has a specific place in the foam lining die-cut for easy storage. Each set also contains a mallet specially designed with one hard and one soft end, for use with all frequencies of forks. Tuning Fork set of 8. With mallet. In wooden box. Contains one each of 256, 288, 320, 341.3, 384, 426.6, 480, and 512
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
Designed to fit securely into a 1 7/8” molded center hole of our SA771D Portable Sign Base System, this adapter ensures a firm hold for U-channel posts. Constructed from durable materials, it withstands harsh weather and heavy use, making it ideal for construction zones, parking lots, and industrial sites. Installation is quick and tool-free, providing a reliable solution for both indoor and outdoor signage needs.
Note: Sign, post, and base not included.
Includes: two 5/16" Zinc plated steel nuts, four washers, and two 3" zinc plated hex bolts.
Includes: two 5/16" x 2 1/2" one-way head bolts, 2 5/16" aluminum break-away nuts and 4 washers.
• Durable vinyl coated mesh
• Reflective Panels on front and back
• Lime 1 3/8” Prismatic Reflective, located above and below the panels
• SAFETY PATROL printed on Front and Back
• 2 Reflective panels
Easy to put on with its over-the-head poncho styling, this vest has an identical design on front and back. It has more than 129 sq. inches of Reflexite Prismatic tape, including two panels on each side with printed legend SAFETY PATROL. Vest has 1" wide elastic straps on each side.
• Front and back of the vest is 18 inches across from side to side
• 12 inch belts on each side for adjustability
• Measures 40 inches or 48 inches from bottom hem on the front across the shoulders to bottom hem on the back
24" x 36" full color laminated poster. Through space imagery, this poster explores some of the many ways that our knowledge of our own planet has been expanded greatly by using satellites. Topics include making topographical maps, weather forecasting, documenting environmental trends, tracking wildfires, and more.
24" x 36" full color laminated poster. Through space imagery, this poster explores some of the many ways that our knowledge of our own planet has been expanded greatly by using satellites. Topics include making topographical maps, weather forecasting, documenting environmental trends, tracking wildfires, and more.
Graduated Interval: 25ml These bottles are made of translucent and unbreakable low density polyethylene. The distinguishing feature that these bottles contain is the built-in delivery tube making it a one-piece wash bottle. These bottles are graduated on the outer surface to reflect an approximate volume of solution filled or dispensed.
This universal cone adapter fits most common traffic cones. Designed to accommodate lightweight signs, flags and lights (battery operated or chemical light sticks). Adapter also makes it easy to interconnect either barricade tape or rope from cone to cone. Cone and sign not included.
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.
A sensational collection that reveals the varied geological specimens found in the United States. Collection includes specimens from each of the 50 States. The rock, mineral or fossil selected to represent that state is individually "keyed" for identification. The key also includes a useful fact and a geologic feature for each individual state. Specimen size 1" x 1" x 1". Grades 3-12. Ages 8-18.
A sensational collection that reveals the varied geological specimens found in the United States. Collection includes specimens from each of the 50 States. The rock, mineral or fossil selected to represent that state is individually "keyed" for identification. The key also includes a useful fact and a geologic feature for each individual state. Specimen size 1" x 1" x 1". Grades 3-12. Ages 8-18.