Digestive System Connective Tissue Human Blood (sm) Nerve Tissue Hemopoetic System Vascular System Human Cheek Cells Epithelial Tissue Muscle Tissue Endocrine System Respiratory System Excretory System Human Hair Fingerprints Human Skin Blood Smear or Blood Stain Textile Fibers.
Fossil fuels were formed millions of years ago as part of a natural process in which the remains of dead plants and animals were buried and placed under extreme pressure and heat. Coal, oil and natural gas are the most important fossil fuels. But what are they used for, how do we find them and what can we do to preserve our limited supplies? Students will find the answers to these questions and more in Fossil Fuels as they explore these nonrenewable resources of Earth. A fun, hands-on investigation demonstrates a creative alternative to using fossil fuels in the creation of plastic and a visit to an oil platform showcases how this valuable fossil fuel is pumped up from the bottom of the ocean. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Fossils are historic blueprints -- remnants of plant and animal life that preceded us. In Fossils, students will examine molds, casts and imprints of various living things, and discover how scientists place the age of these ancient remains and the methods they use to preserve them for future generations. Find out how paleontologists discover fossils and what these discoveries tell us about the past. Take a trip to the Petrified Forest, and examine tree trunks that were turned to stone millions of years ago. A fun, hands-on investigation demonstrates for students how they can create four different simulated environments in order to test each for its ability to preserve remains. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
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
Fast drying, long lasting durability on outdoor pavement and indoor surfaces. Non-clogging spray tip. VOC compliant, free-of-lead hazards. Great for use in parking lots, school grounds, road surfaces and more.
Recommended Uses: Use on asphalt, concrete, brick and stone. Great for use in parking lots, school grounds, road surfaces and more.
Includes 1 each of 1, 5, 10, 50 and 500 mg weights; 2 each of 2, 20 and 200 mg weights. Comes in rectangular plastic box with rider and forceps
Includes 1 each of 1, 5, 10, 50 and 500 mg weights; 2 each of 2, 20 and 200 mg weights. Comes in rectangular plastic box with rider and forceps
A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.
A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.
12" x 12" Cotton Friction Pad.
12" x 12" Cotton Friction Pad.
12" x 12" Silk riction pad.
12" x 12" Silk friction pad.
12" x 12" Wool friction pad.
12" x 12" Wool friction pad.
Hard rubber, ebonite friction rod with rounded edges about 11 Inch (280mm) x 0.47 Inch (12mm) Length x Diameter. Measurements are approximate.
Hard rubber, ebonite friction rod with rounded edges about 11 Inch (280mm) x 0.47 Inch (12mm) Length x Diameter. Measurements are approximate.
12" Hollow glass friction rod. Approximately 1/2" in diameter.
12" Hollow glass friction rod. Approximately 1/2" in diameter.
12" Solid plastic friction rod. Approximately 1/2" in diameter.
12" Solid plastic friction rod. Approximately 1/2" in diameter.
• 100% polyester 150D oxford with PU coating
• Zipper and snap front closure
• Length for sizes from 50" to 53" in .05" increments
• Mesh lining
• Detachable and stowable hood
• Two exterior slash pockets with rain guard
• Vent holes under each arm
• Available in 2 colors and 7 Colors
100% polyester 150D oxford with PU coating. Zipper & snap front closure. 50" length. Mesh lining. Waterproof with sealed seams. Detachable hood w/hood storage in collar. 2 exterior slash pocket with rain guard. Vent holes in under arms. AWARELite reflective trim.
| Size | Length | Chest |
| Medium | 50" | 40"-42" |
| Large | 50.5" | 44"-26" |
| X-Large | 51" | 48"-50" |
| 2X-Large | 51.5" | 52"-54" |
| 3X-Large | 52" | 56"-58" |
| 4X-Large | 52.5" | 60"-62" |
| 5X-Large | 53" | 64"-66" |
For 17mm-20mm tubes. Holds 40 tubes. 55 drying pins. 44 drying pins. Great visibility and very compact. Constructed of polyethylene, is autoclavable and extremely stable. Size is about 10" x 4" x 3".
For 17mm-20mm tubes. Holds 40 tubes. 55 drying pins. 44 drying pins. Great visibility and very compact. Constructed of polyethylene, is autoclavable and extremely stable. Size is about 10" x 4" x 3".
For 14mm-17mm tubes. Holds 50 tubes. 66 drying pins. 44 drying pins. Great visibility and very compact. Constructed of polyethylene, is autoclavable and extremely stable. Size is about 10" x 4" x 3".
For 14mm-17mm tubes. Holds 50 tubes. 66 drying pins. 44 drying pins. Great visibility and very compact. Constructed of polyethylene, is autoclavable and extremely stable. Size is about 10" x 4" x 3".
For one funnel. Attaches to ring stand to support funnel.
Metal construction. With sliding plate glass front. Two glass chimneys. Candle holder is mounted in the box.
Metal construction. With sliding plate glass front. Two glass chimneys. Candle holder is mounted in the box.
The specimens in this collection represent minerals rare and beautiful enough to be prized as gemstones. Included are specimens of study grade beryl, topaz, rose quartz, turquoise, olivine, corundum, garnet, tourmaline and more. 15 specimens approximately 1" x 1" in a compartmented tray. Grades 6-12. Ages 11-18.
• One of the most visible and space efficient barricades available
• Takes up half the space of traditional barricades
• Designed to withstand repeated impacts with little or no damage
• Has a recessed panel with engineering grade reflective sheeting
• Measures 8"w x 36"h
• Gemstone side wall provides strength and durability
• Oversized handle with comfort grip
• Flashing light mounting receptacle
• Made of low density polyethylene
• Federal Highway Administration Approved with HAS-10 / WZ-89
• NCHRP Compliant
The Gemstone is one of the most visible and space efficient barricades available. It takes up half the space of traditional barricades, which means less storage space taken and minimal footprint during use. Designed to withstand repeated impacts with little or no damage to vehicles or unit. Stackable with or without the base. Recessed panel with engineering grade reflective sheeting. Measures 8" w x 36" h. Gemstone side wall provides strength and durability. Flashing light mounting receptacle. Picking up and transporting (even with light attached) is a breeze because of its large handle with comfortable grip. Made of low density polyethylene. Federal Highway Administration Approved with HAS-10 / WZ-89. NCHRP Compliant.
• One of the most visible and space efficient barricades available
• Takes up half the space of traditional barricades
• Designed to withstand repeated impacts with little or no damage
• Has a recessed panel with high intensity reflective sheeting
• Measures 8"w x 36"h
• Gemstone side wall provides strength and durability
• Oversized handle with comfort grip
• Flashing light mounting receptacle
• Made of low density polyethylene
• Federal Highway Administration Approved with HAS-10 / WZ-89
• NCHRP Compliant
The Gemstone is one of the most visible and space efficient barricades available. It takes up half the space of traditional barricades, which means less storage space taken and minimal footprint during use. Designed to withstand repeated impacts with little or no damage to vehicles or unit. Stackable with 20 pound base. Has a recessed panel with high intensity reflective sheeting. Measures 8"w x 36"h. Gemstone side wall provides strength and durability. Flashing light mounting receptacle. Picking up and transporting (even with light attached) is a breeze because of its large handle with comfortable grip. Made of low density polyethylene. Federal Highway Administration Approved with HAS-10 / WZ-89. NCHRP Compliant.
• One of the most visible and space efficient barricades available
• Takes up half the space of traditional barricades
• Designed to withstand repeated impacts with little or no damage
• Measures 8"w x 36"h with 20 lb base
• Gemstone side wall provides strength and durability
• Oversized handle with comfort grip
• Flashing light mounting receptacle
• Made of low density polyethylene
• Federal Highway Administration Approved with HAS-10 / WZ-89
• NCHRP Compliant
The Gemstone is one of the most visible and space efficient barricades available. It takes up half the space of traditional barricades, which means less storage space taken and minimal footprint during use. Designed to withstand repeated impacts with little or no damage to vehicles or unit. Stackable with 20 pound base. Measures 8"w x 36"h. Gemstone side wall provides strength and durability. Flashing light mounting receptacle. Picking up and transporting (even with light attached) is a breeze because of its large handle with comfortable grip. Made of low density polyethylene. Federal Highway Administration Approved with HAS-10 / WZ-89. NCHRP Compliant.
• One of the most visible and space efficient barricades available
• Takes up half the space of traditional barricades
• Designed to withstand repeated impacts with little or no damage
• Has a recessed panel with engineering grade reflective sheeting
• Measures 8"w x 36"h with 30 lb base
• Gemstone side wall provides strength and durability
• Oversized handle with comfort grip
• Flashing light mounting receptacle
• Made of low density polyethylene
• Federal Highway Administration Approved with HAS-10 / WZ-89
• NCHRP Compliant
The Gemstone is one of the most visible and space efficient barricades available. It takes up half the space of traditional barricades, which means less storage space taken and minimal footprint during use. Designed to withstand repeated impacts with little or no damage to vehicles or unit. Stackable with 30 pound base. Has a recessed panel with engineering grade reflective sheeting. Measures 8"w x 36"h. Gemstone side wall provides strength and durability. Flashing light mounting receptacle. Picking up and transporting (even with light attached) is a breeze because of its large handle with comfortable grip. Made of low density polyethylene. Federal Highway Administration Approved with HAS-10 / WZ-89. NCHRP Compliant.
• One of the most visible and space efficient barricades available
• Takes up half the space of traditional barricades
• Designed to withstand repeated impacts with little or no damage
• Has a recessed panel with high intensity reflective sheeting
• Measures 8"w x 36"h with 30 lb base
• Gemstone side wall provides strength and durability
• Oversized handle with comfort grip
• Flashing light mounting receptacle
• Made of low density polyethylene
• Federal Highway Administration Approved with HAS-10 / WZ-89
• NCHRP Compliant
The Gemstone is one of the most visible and space efficient barricades available. It takes up half the space of traditional barricades, which means less storage space taken and minimal footprint during use. Designed to withstand repeated impacts with little or no damage to vehicles or unit. Stackable with 30 pound base. Has a recessed panel with high intensity reflective sheeting. Measures 8"w x 36"h. Gemstone side wall provides strength and durability. Flashing light mounting receptacle. Picking up and transporting (even with light attached) is a breeze because of its large handle with comfortable grip. Made of low density polyethylene. Federal Highway Administration Approved with HAS-10 / WZ-89. NCHRP Compliant.