Simplified form of 13281-2. Includes: jar, screw-on ring, electrode holders, zinc, copper electrodes. Complete instructions.
Simplified form of 13281-2. Includes: jar, screw-on ring, electrode holders, zinc, copper electrodes. Complete instructions.
This child safety poncho easily goes over your child's head, and will lay over a backpack. Reflective circles and shoulder stripes shine brightly when light hits them, keeping children visible and safe. The bright lime color stands out and helps you keep an eye on your child when in a crowd. Also great for kids that help adult crossing guards before and after school.
Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.
Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.
24" x 36" full color laminated poster.
This is an especially important poster because it presents the new Sibley-Ahlquist bird classification system. Based on recent DNA studies, this system uses cladistics to reconstruct the evolutionary family tree. Who would have thought that birds as diverse as flamingos, eagles, and penguins would end up in the same clade? However, this revolutionary new system has been widely accepted by North American ornithologists and has made the previous bird classification system obsolete. Although this poster shows true clades, the scientific community continues to use the order names, which are cited.
This is a truly beautiful poster, one greatly appreciated by bird lovers. It certainly enhances the decor of their home or office, yet it presents information that has even greater value. All the bird clades are explored, and all of the many classification changes resulting from the transition from orders to clades are explained. This information has never before been published in such a concise and convenient form, making this poster an essential reference for anyone seriously interested in birds.
24" x 36" full color laminated poster. This is an especially important poster because it presents the new Sibley-Ahlquist bird classification system. Based on recent DNA studies, this system uses cladistics to reconstruct the evolutionary family tree. Who would have thought that birds as diverse as flamingos, eagles, and penguins would end up in the same clade? However, this revolutionary new system has been widely accepted by North American ornithologists and has made the previous bird classification system obsolete. Although this poster shows true clades, the scientific community continues to use the order names, which are cited. This is a truly beautiful poster, one greatly appreciated by bird lovers. It certainly enhances the decor of their home or office, yet it presents information that has even greater value. All the bird clades are explored, and all of the many classification changes resulting from the transition from orders to clades are explained. This information has never before been published in such a concise and convenient form, making this poster an essential reference for anyone seriously interested in birds.
These colorful teaching models are designed specifically for hands-on use with young children. Made of resilient, non-toxic, EVA foam, the removable pieces stimulate problem-solving skills and develop small motor skills. Every model is accompanied by a reproducible activity card containing background information and extension ideas. teachers can cut out the task card and use it in learning center or as a group activity. This teaching model is designed to introduce students to the "life and times" of the ant. It illustrates the major stages of the life cycle and the ants extensive social life. Grades K-6.
This colorful teaching model is designed specifically for hands-on use with young children. Made of resilient, non-toxic, EVA foam, the removable pieces stimulate problem-solving skills and develop small motor skills. Model is accompanied by a reproducible activity card containing background information and extension ideas. Teachers can cut out the task card and use it in learning center or as a group activity. This teaching model is designed to introduce students to the "life and times" of the honeybee. It illustrates the major stages of the life cycle, the unique role that bees play in pollination, and the bees extensive social life. Grades K-6.
These colorful teaching models are designed specifically for hands-on use with young children. Made of resilient, non-toxic, EVA foam, the removable pieces stimulate problem-solving skills and develop small motor skills. Every model is accompanied by a reproducible activity card containing background information and extension ideas. teachers can cut out the task card and use it in learning center or as a group activity. This teaching model is designed to introduce students to what happens inside a chicken egg. It illustrates three major stages of the chick's development, and encourages students to explore how chicks change as they grow. Grades K-8.
These colorful teaching models are designed specifically for hands-on use with young children. Made of resilient, non-toxic, EVA foam, the removable pieces stimulate problem-solving skills and develop small motor skills. Every model is accompanied by a reproducible activity card containing background information and extension ideas. teachers can cut out the task card and use it in learning center or as a group activity. These teaching models are designed to introduce students to lifecycles. The models illustrate the major stages of the life cycle, and encourage students to explore how these living things change as they grow. Grades K-8.
These colorful teaching models are designed specifically for hands-on use with young children. Made of resilient, non-toxic, EVA foam, the removable pieces stimulate problem-solving skills and develop small motor skills. Every model is accompanied by a reproducible activity card containing background information and extension ideas. teachers can cut out the task card and use it in learning center or as a group activity. This model shows the various structures of roots. Use the companion model, From Seed to Plant, to further explore plant structure. Grades K-8.
The Earth Science Book Plus Series provides colorful teaching models and reproducible activity cards that teach children about earth science. The models are made of resilient, non-toxic, EVA foam, with removable pieces that stimulate problem-solving skills and develop small motor skills. The book covers contain background information, activities and extension ideas. Teachers can cut out the task card and use it in a learning center or as a group activity. The models are 10" x 14.5" x 3/4" thick. The teaching model illustrates volcanic action and shows how igneous, sedimentary and metamorphic rocks are formed. Available in French. Grades K-6.
The Earth Science Book Plus Series provides colorful teaching models and reproducible activity cards that teach children about earth science. The models are made of resilient, non-toxic, EVA foam, with removable pieces that stimulate problem-solving skills and develop small motor skills. The book covers contain background information, activities and extension ideas. Teachers can cut out the task card and use it in a learning center or as a group activity. The models are 10" x 14.5" x 3/4" thick.The Water Cycle model illustrates precipitation, evaporation, condensation and runoff. It shows that water is constantly reused and recycled and also illustrates how clouds are formed. Available in French. Grades K 6.
• Made with 0.35mm thick PVC and polyester fabric
• Detachable hood with drawstring
• Storm flap front with snap closure
• 2 flapped front pockets with snap closures to secure valuables
• Cape vented back
• Corduroy collar for comfort
• Adjustable suspenders for with triangular buckles for a perfect fit
• Front fly opening with snap
• Light to medium duty.
• Applications: Crossing guards, survey crews, law enforcement, ranching, and forestry.
• Available with or without CROSSING GUARD emblem on back
Heavy duty .35mm PVC on polyester broadloom fabric offers long term durability. Complete 3-piece suit includes jacket (with corduroy collar and cape vented back), detachable hood and bib pants. Available in 4 sizes with or without CROSSING GUARD Emblem on back.
Glazed porcelain, one-piece construction. With fixed perforated plate. Straight sides with tapered stem.
Low friction modular pulleys snap together with interlocking brackets. Connect up to 6 for an exciting lab in simple machines. Tough ABS plastic brackets, 2" diameter plastic sleeves.
Low friction modular pulleys snap together with interlocking brackets. Connect up to 6 for an exciting lab in simple machines. Tough ABS plastic brackets, 2" diameter plastic sleeves.
Will hold 2 burettes 7 1/4" apart. Stamped steel. Zinc plated. For burettes 6mm to 16mm.
Will hold 2 burettes 7 1/4" apart. Stamped steel. Zinc plated. For burettes 6mm to 16mm.
Same as above with plastisol coated jaw.
Same as above with plastisol coated jaw.
A set of premium quality pH 7.01 and 10.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. 5 sachets of pH 7.01 and 5 sachets of pH 10.01 with each containing 20 mL of buffer.
• Color coded label for easy pH buffer value identification
• Accuracy of +/- 0.01 pH @ 25°C
• Temperature chart of the actual pH value at various temperatures printed on each bottle
A set of premium quality pH 4.01 and 7.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI77400P is for 5 sachets of pH 4.01 and 5 sachets of pH 7.01 with each containing 20 mL of buffer.
• For use with Checker 1 pH Meter
• Color coded label for easy pH buffer value identification
• Accuracy of +/- 0.01 pH @ 25°C
• Temperature chart of the actual pH value at various temperatures printed on each sachet
Steam autoclavable, polypropylene molded tray has a built-in handle for easy carrying of reagents or laboratory ware using one hand.
Steam autoclavable, polypropylene molded tray has a built-in handle for easy carrying of reagents or laboratory ware using one hand.
Perfect for counting, measuring and patterning. Plastic 1 cm cubes in 10 colors come in a storage tub with Activity Guide. Grades 1 +
This set of 1000 Centimeter cubes is perfect for counting, measuring and patterning. Plastic 1 cm cubes in 10 colors come in a storage tub with Activity Guide. Grades 1 +
Perfect for counting, measuring and patterning. Plastic 1 cm cubes in 10 colors come in a storage tub with Activity Guide. Grades 1 +
This set of 500 Centimeter cubes is perfect for counting, measuring and patterning. Plastic 1 cm cubes in 10 colors come in a storage tub with Activity Guide. Grades 1 +