Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
Strong plastic construction. These Buzzers are an essential electrical part for use in Physics electrical circuits and Sound experiments and other general lab use. Buzzer dia. 1.15" (29mm) x 0.58" (14.8mm) thick. Base 1.89" (48mm) long, with two holes 0.13" (3.48mm) dia. for mounting. Connecting wire 4" (100mm) long.
Consists of an inner aluminum vessel 75mm x 50 mm, height x diameter, and an outer aluminum vessel 100 mm x 75 mm, height x diameter, with a bakelite cover with two terminals, which are cross-drilled at their lower ends and are fitted with a heating coil, the upper ends are fitted with standard sockets for electrical connections. The bakelite cover has holes for thermometer and a stirrer. Supplied complete with stirrer but without thermometer.
Consists of an inner aluminum vessel 75mm x 50 mm, height x diameter, and an outer aluminum vessel 100 mm x 75 mm, height x diameter, with a bakelite cover with two terminals, which are cross-drilled at their lower ends and are fitted with a heating coil, the upper ends are fitted with standard sockets for electrical connections. The bakelite cover has holes for thermometer and a stirrer. Supplied complete with stirrer but without thermometer.
An introductory kit providing students with materials to "breadboard" various electrical circuits such as: series and parallel circuits, investigating conductions and insulators, making electromagnets. Contents include: holders and batteries, bulb holders and bulbs, switch, carbon rod, iron rod, plastic insulator, coil of wire, "breadboard" circuit board, jiffy clip leads.
An introductory kit providing students with materials to "breadboard" various electrical circuits such as: series and parallel circuits, investigating conductions and insulators, making electromagnets. Contents include: holders and batteries, bulb holders and bulbs, switch, carbon rod, iron rod, plastic insulator, coil of wire, "breadboard" circuit board, jiffy clip leads.
Explore the wonders of magnets! Amaze yourself with the magic of magnetism when you power a light bulb and build your own motor! For young scientists ages 10+. Assembly normally requires adult participation. Contents: Neodymium & Ceramic Magnets, light emitting diode (LED), plastic plates and tubes, wire, compass, spring, nails, screws, nuts, and bolts, paper clips, sand paper, and activity guide.
No tools needed, just curiosity, to make this powerful electric motor. And it's fun to use as it powers it's own motorboat. Battery not included.
No tools needed, just curiosity, to make this powerful electric motor. And it's fun to use as it powers it's own motorboat. Battery not included.
Includes everything you'll need to show that electricity can act very much like a magnet. One large nail, one five-foot piece and one 1 1/4-foot piece of plastic insulated wire with end connectors, one knife-edge switch, two screws, one 3" x 4" x 1" wooden block and complete instructions. Battery not included.
Dowling Magnets Electromagnet science kit is ideal for ages 10 - 14 and is used to teach the kids about the magnetic effects. Kit is ideal to build a doorbell and a telegraph system.. - Helps in building a doorbell, telegraph system and even a catapult all using a true electromagnet. - Includes disc, latch and neodymium magnets, compass, straws, wires, sandpaper, switch plates, wood screws, nails, light bulbs, battery holders, iron filings, pre-drilled wood blocks, LED, instruction book. - Electromagnet science kit for grade 5th - 8th helps in building a doorbell, telegraph system and even a catapult all using a true electromagnet.
An economy model planetarium. Moon, Earth and Venus globes are rotated, revolved separately by hand. The twilight zone ring enables young students to better understand the nature of dawn and dusk. Underarm chain drive keeps the North Pole pointing to Polaris, the North Star. Durable, colorful plastic with brass and steel parts. Complete quality planetarium at a low price.
This introductory set contains the following: Amoeba, Paramecium, Hydra plain, Sponge spicules, Planaria, Tricinella in muscle, Earthworm cross section of anterior and posterior, Clam gill, Daphnia, Fruitfly, Housefly head, insect trachea.
This introductory set contains the following: Amoeba, Paramecium, Hydra plain, Sponge spicules, Planaria, Tricinella in muscle, Earthworm cross section of anterior and posterior, Clam gill, Daphnia, Fruitfly, Housefly head, insect trachea.
Introduce your students to the fundamentals of chemistry. Provide your class with a basic understanding of the primary concepts of chemistry as they investigate how matter is classified, identify the various types of mixtures, and compare the properties of solutions with the properties for mixtures. They'll also learn to identify elements and compounds and study how chemical symbols, formulas and equations are used to describe chemical reactions. Grades 7-10.
By touching two metal strips simultaneously your body becomes a path for charged molecules to complete a circuit. Result: the ball glows brightly. Works with several people creating the path. When opened, the energy ball reveals a working circuit for insight into the world of computers.
This 60" plastic tape has inches on one side and centimeter/ millimeter scale on the other.
This 60" plastic tape has inches on one side and centimeter/ millimeter scale on the other.
18" x 18" x 3" (Square). 20 lbs. Base with 2 3/8" diameter Post ENVIROform Parking Lot Sign Units are ideal for parking lots, crosswalks, guard shacks, schools, industrial and construction sites, or anywhere portable outdoor signs are needed. The 60 lb. base is made from 100% recycled rubber and will not chip, crack or corrode. Each 60 lb. unit is flexible to withstand high winds and bad weather, as well as heavy traffic areas. Lighter weight models are ideal for indoor or light temporary use. The portable base makes lot maintenance and snow removal tasks easy. The sign base unit may be used in both indoor and outdoor settings. Bases clean up like new with whitewall tire cleaner (no wiping). The use of just one economical unit will provide enhanced parking lot safety and provide you with the capability of less liability/damage in vehicle incidents. One 60-pound sign base prevents more than eight tires from entering Americas landfills. - Signs not included.
18" x 18" x 3" (Octagon). 30 lbs. Base with 2" diameter Post ENVIROform Parking Lot Sign Units are ideal for parking lots, crosswalks, guard shacks, schools, industrial and construction sites, or anywhere portable outdoor signs are needed. The 60 lb. base is made from 100% recycled rubber and will not chip, crack or corrode. Each 60 lb. unit is flexible to withstand high winds and bad weather, as well as heavy traffic areas. Lighter weight models are ideal for indoor or light temporary use. The portable base makes lot maintenance and snow removal tasks easy. The sign base unit may be used in both indoor and outdoor settings. Bases clean up like new with whitewall tire cleaner (no wiping). The use of just one economical unit will provide enhanced parking lot safety and provide you with the capability of less liability/damage in vehicle incidents. One 60-pound sign base prevents more than eight tires from entering Americas landfills. - Signs not included.
18" x 18" x 6" (Octagon). 60 lbs. Base with 2" diameter Post ENVIROform Parking Lot Sign Units are ideal for parking lots, crosswalks, guard shacks, schools, industrial and construction sites, or anywhere portable outdoor signs are needed. The 60 lb. base is made from 100% recycled rubber and will not chip, crack or corrode. Each 60 lb. unit is flexible to withstand high winds and bad weather, as well as heavy traffic areas. Lighter weight models are ideal for indoor or light temporary use. The portable base makes lot maintenance and snow removal tasks easy. The sign base unit may be used in both indoor and outdoor settings. Bases clean up like new with whitewall tire cleaner (no wiping). The use of just one economical unit will provide enhanced parking lot safety and provide you with the capability of less liability/damage in vehicle incidents. One 60-pound sign base prevents more than eight tires from entering Americas landfills. - Signs not included.
- Made of recycled tire rubber
- Ideal for use in construction zones, parking lots or areas with heavy traffic
- Able to withstand extreme temperatures without cracking or drying out
- Can be used either in indoor or outdoor settings
- Durable 5” diameter wheel with 1/2” steel axle
- 16” wheel separation for added stability and ease of movement
- Base size of 21”x21”x5” in a modified circle provides for increased sign stability
Portable sign base systems are ideal for parking lots, crosswalks, guard booths, malls, industrial or construction sites. The sign bases are designed to withstand high winds and extreme weather conditions, making them perfect for outdoor use throughout the year. Our sign bases are environmentally friendly and made out of recycled tire rubber.
Sign and Post not included.
Specifications
- Modified circle base with 1 7/8” molded center hole.
- 1/2” steel axle with 5” wheels
- Weight: 60 lbs.
- Height: 5”
- Length: 21”
- Width: 20”
Observe the effects of 3 doses of gamma irradiation on seeds and compare with control seeds. Rye grass and mung bean seeds have a short germination period, so students can see the effects within 48 hours and the experiment can be completed within 2 weeks. Kit contains enough for 30 students to work individually.
Standard Conical shaped flasks, in seven sizes, borosilicate (heat resistant) glass, marked with graduations for approximate volumes, used in the laboratory for mixing, storing and heating of liquids. Stopper Size: 1 (not included)
Standard Conical shaped flasks, in seven sizes, borosilicate (heat resistant) glass, marked with graduations for approximate volumes, used in the laboratory for mixing, storing and heating of liquids. Stopper Size: 1 (not included)
Wide-mouth, conical flask made of polypropylene. Comes with a screw cap, or can be used with a stopper. Chemical resistant, and autoclavable to 135º C. Graduated in easy to see green print. Sold in packs of 12.
Porcelain. Glazed inside and outside except bottom outside surface.
Porcelain. Glazed inside and outside except bottom outside surface.
Porcelain. Glazed inside and outside except bottom outside surface.
Porcelain. Glazed inside and outside except bottom outside surface.
• Spiked Ice Grippers for safety on ice
• Make icy conditions easier to navigate
• 360 degree spike pattern provides more push off and lateral grip
• The patented Ice Diamond carbide spikes
• Spikes are integrated into the open/close split rubber tread for improved traction
• Unique support on heel strap provides easy adjustment
• Easy to put on and take off.
• Small/Medium fits mens 3-7, womens 5-9.
• Large/X-Large fits mens 6-14, womens 10+
For safety on ice, these easy-on spikes make icy conditions easier to navigate. The patented Ice Diamond carbide spikes are integrated into the open/close split rubber tread for improved traction. Unique support on heel strap provides easy adjustment, and are easy to put on and take off. Ideal for visitors or offiice personnel who occasionally walk into areas where ice and snow may cause a safety concern. Small/Medium fits mens 3-7, womens 5-9. Large/X-Large fits mens 6-14, womens 10+.
45 specimens, approximately 1.5" x 1.5", includes 15 each of igneous, sedimentary and metamorphic rocks. Each category of rock is well represented and forms an integrated classroom study unit. Grades 6-12. Ages 11-18.
Visualize the potential contamination of groundwater. Construct mini-groundwater simulation models showing the movement of a simulated, colored pollutant. Determine under what conditions contamination occurs from a variety of sources such as spill, farms, and buried tanks and how polluted groundwater eventually reaches the drinking water supply. In the process, students learn about the water cycle, water quality, ppm and ppb pollutant contamination, porosity of soils, and other related concepts. Grades 6-10.