• 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.
• Concealed under brim technology
• 2 LEDs pointing outward for distance applications
• 2 LEDs angled downward for close and medium task applications
• 48 lumens of light output - twice the light output of any lighted cap on the market.
• 43 hours run time.
• 13 meters forward lighting.
• 4 way switch
• Solid colored cap, 100% polyester fleece. 97% polyester/3% spandex.
• Four replaceable lithium CR-2032 batteries.
• One size fits most.
Concealed under brim technology takes lighted headwear to a new level of functionality. Now the POWERCAP Stealth 2575 has expanded on this technology to provide the market with the most advanced lighted cap ever. 4 way switch available again. When you click the button, two lights turn on, click again, two different lights turn on, click again, all 4 lights on, click again, all 4 lights turn off. Delivers twice the light output of any lighted cap on the market. 4 ultra-bright LEDs: 2 LEDs pointing outward for distance applications and 2 LEDs angled downward for close and medium task applications. 48 lumens of light output. 43 hours run time. 13 meters forward lighting. Adjustable hook and loop tape closure. Solid colored cap, 100% polyester fleece. 97% polyester/3% spandex. Four replaceable lithium CR-2032 batteries. One size fits most.
• NON-ANSI
• 100% POLYESTER TRICOT
• 26" - 50"
• LIME SOLID VEST
• NO REFLECTIVE TAPE
• Discover the invisible world of magnetic forces
• "Draw" pictures with magnets
• Test the strength of magnets
Discover the invisible world of magnetic forces. Draw pictures with magnets. Make a magnetic driving test. Test the strength of magnets and learn how to lift objects without touching them! Explore the basic principles of magnetism with twelve hands-on experiments. Includes a full-color 16-page guidebook with simple step-by-step instructions and lots of pictures. Kit contains the necessary parts. Ages 5 and up.
Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index. Features a hinged design.
Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index. Features a hinged design.
"Starting to Know" life through a microscope is the theme. Slides are: Amoeba, Paramecium, Plankton, Sponge spicules, Fruitfly, frog and human blood, fish scales, Squamous epithelium, muscle, bacteria, Euglena, Spirogyra, Diatoms, Yeast cells, Mushroom section, Onion epidermis, Magnolia, pollen grains and Lily ovary.
"Starting to Know" life through a microscope is the theme. Slides are: Amoeba, Paramecium, Plankton, Sponge spicules, Fruitfly, frog and human blood, fish scales, Squamous epithelium, muscle, bacteria, Euglena, Spirogyra, Diatoms, Yeast cells, Mushroom section, Onion epidermis, Magnolia, pollen grains and Lily ovary.
Introduce your students to the Five Kingdoms through the process of classification. Students view illustrations of various life forms and use a simple, dichotomous key to determine the appropriate kingdom and phylum of each. In the process, they'll gather valuable summary information regarding what each life form "does for a living!" Grades 6-12.
The MM-240 MicroMax Plus™ from Carson Optical will turn your Samsung Galaxy S® 4 into a Digital Microscope! It is a powerful 60-100x power Magnification Pocket Microscope with a Samsung Galaxy S® 4 Adapter. Taking close up images and video is easy using the Samsung Galaxy S® 4. Set up is easy, simply attach the Adapter case and MicroMax LED Pocket Microscope to your Samsung Galaxy S® 4. Open the camera setting in your Samsung Galaxy S® 4 and start viewing. The built-in LED light provides a bright, clear image. You can zoom in using the focus knob on the MicroMax LED or digitally using the zoom function on your Samsung Galaxy S® 4. It is great for viewing circuits, foliage & flowers, fabrics, coins and so much more!
The MM-240 MicroMax Plus™ from Carson Optical will turn your Samsung Galaxy S® 4 into a Digital Microscope! It is a powerful 60-100x power Magnification Pocket Microscope with a Samsung Galaxy S® 4 Adapter. Taking close up images and video is easy using the Samsung Galaxy S® 4. Set up is easy, simply attach the Adapter case and MicroMax LED Pocket Microscope to your Samsung Galaxy S® 4. Open the camera setting in your Samsung Galaxy S® 4 and start viewing. The built-in LED light provides a bright, clear image. You can zoom in using the focus knob on the MicroMax LED or digitally using the zoom function on your Samsung Galaxy S® 4. It is great for viewing circuits, foliage & flowers, fabrics, coins and so much more!
In Properties of Gases, students are introduced to kinetic molecular theory and learn about the physical relationships that exist between temperature, pressure, volume and density in gases. Students will see how the gas laws apply to living systems by developing an experimental design to measure the production and consumption of oxygen and carbon dioxide during cellular respiration. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.
For thousands of years, humans dreamed of flying -- but it isn't as easy as birds make it look. Students will learn about lift, gravity, thrust and drag -- the forces that are used to get tons of steel off the ground and carry people thousands of miles before landing safely. They will also discover the role atoms and air pressure play in this amazing task as well as in other forms of flight. An interesting hands-on activity is included along with fun, real-life demonstrations to further illustrate these concepts. One of 16 volumes in the Physical Science in Action DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library in Action Collection. This title correlates to the National Science Education Standards for Physical Science -- properties and changes in properties of matter, motions and forces and transfer of energy. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Sound, light, heat and even earthquakes travel in waves. Waves are a transfer of energy, and understanding them allows us to better understand the world around us. Students learn about the common characteristics of waves through real-life examples and clearly illustrated graphics. A fun, hands-on activity will help students understand these basic concepts. This program is one of 11 volumes in the Physical Science for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects and materials, position and motion of objects and light, heat, electricity and magnetism. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
Don't miss the best meteor shower of the year. Discover the figure of the boy, "Jack," on the moon. Quickly locate favorite constellations such as the Big and Little Dipper, Orion, Draco, and Cassiopeia. With Mark R. Chartrand's Night Sky: A Guide to Field Identification, now you can! No other guide makes it easier for the casual stargazer or beginning astronomer to enjoy the splendors of the universe and appreciate the laws that govern the sun, moon, planets, and stars.
• Ideal for viewing with the naked eye, binoculars, or small telescopes
• Seasonal sky maps for each region of the United States
• Expert help photographing celestial events
• Solar eclipse timetable and safe viewing tips
• 280 pages, softcover, 4 1/2" x 7 1/2" size
Crystals are fascinating creations of natural beauty. Diamonds, gemstones, rose quartz, snowflakes, sugar grains, and table salt are all crystals. Grow your own crystals and explore these exquisitely ordered structures in a fun, creative way with six crafty experiments. This kit includes five different chemicals and other tools for growing crystals. Grow a crystal cloud inside a rainbow. Watch pink iridescent crystals form from a translucent solution. Grow long needle-shaped crystals. Mold plaster hearts and flowers and then grow a layer of pink crystals on them. Create the perfect solution to get crystals to form on a granite rock. A specially designed experiment station provides molds and growing basins for your crystal creations. After you have grown your crystals, store them safely in three clear, locking display boxes. Learn how and why crystals form, and tips and tricks for getting the biggest, most beautiful crystals. Full-color, 16-page experiment manual.
Set of 10 additional student charts and mineral samples for use with the What Mineral Is It? classroom project (Item # 12044).
Tin Metal, lab grade, mossy - 100g.
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
Loud, consistent sound every time! Great for crossing guards. The Fox 40 Electronic Whistle features three distinctive tones, and can be aimed in specific directions. The 125 dB electronic whistle provides loud, clear, consistent sound every time you push a button. The hand operation is a hygienic solution that can be used by multiple people. Includes detachable wrist lanyard and 9-volt battery. Great for coaches, teachers and intramural sports! 4 switch three tone function design. Sound Power: 125 dB.
If out of stock, order one of our Windsor Electronic Whistles.
This item is NON RETURNABLE
The perfect way to alert the public to hazards that are located in unlit or dimly lit areas. This highly visible tape comes with a liner.
This high visibility, 6-mil, pressure-sensitive tape conforms to OSHA marking requirements. Alternating stripe pattern available in a variety of colors. As an added feature, these self-wound printed tapes with permanent adhesive are protected with a clear overlamination. Made in the USA.
• 180 degree viewing area
• Perfect for hallways at "T" intersections
• Acrylic lens with good weather resistance
• Impact resistant with high reflectivity
• Mounting hardware and instructions included
• Recommended for viewing areas up to 26 feet
26" Half Dome Security Mirror with 180 degree viewing area. Perfect for hallways at "T" intersections. Acrylic lens with good weather resistance and impact resistance with high reflectivity. Mounting hardware is included along with easy to follow instructions. Recommended for viewing areas up to 26 feet.
• 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.
Zinc plated steel extension rings. Rod diameter is 5/16" overall length is 12".
Zinc plated steel extension rings. Rod diameter is 5/16" overall length is 12".