Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Sloping front meters for easy reading. +/- 2.5% accuracy with overload protector and color-coded bar. 4"W x 5.5"D x 3.5" H. External zero adjustment.
Knife Switch with Screw Type Binding Posts - Single Pole, Single Throw. Great for classroom and laboratory experiments, the knife switch has a mounted screw type binding post for a solid electrical connection.
Knife Switch with Screw Type Binding Posts - Single Pole, Single Throw. Great for classroom and laboratory experiments, the knife switch has a mounted screw type binding post for a solid electrical connection.
Extra flexible, rubber covered wire with insulated Alligator Clips on both ends. Includes 1 red and 1 black wire.
Extra flexible, 12 inch rubber covered wire with insulated Alligator Clips on both ends. Includes 1 red and 1 black wire.
Learn how electricity and magnetism can be used to make each other, learn about magnetic fields, how the electricity in your home works, how switches control the electricity to the lights in your home, and how series and parallel circuits affect electricity.
Features:
- Educational toy with projects that relate to electricity in the home and magnetism and how it is used.
- Includes: meter, electromagnet, motor, lamps, switches, fan compass, and electrodes.
- Build over 75 projects
- Contains over 40 parts
- Requires 3 "AA" batteries (not included)
Elenco's Snap Circuits® makes learning electronics easy and fun! Just follow the colorful pictures in our manual and build exciting projects such as FM radios, digital voice, recorders, AM radios, burglar alarms, doorbells, and much more! You can even play electronic games with your friends. All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. Snap Circuits® are endorsed by educators worldwide and used in schools, libraries, museums, STEM programs and creating with Snap Circuits®. The Circuit Safe™ patented safety device unique to Snap Circuits® branded products makes learning circuitry safe. No tools required. Uses "AA" batteries, unless otherwise indicated. Snap Circuits® products have won many awards, including Toy of the Year (TOTY), ASTRA'S Best Toys for Kids, Parent's Choice Recommended, Good Housekeeping's Best Toy, Family Choice, National Parenting Publications Awards (NAPPA Gold), Children's Choice, Dr. Toy (100 Best Children's Products, 10 best Educational Products, Green Toy Company), The inaugural Seriously STEM award & KAPi Award.
Elenco's Snap Circuits® makes learning electronics easy and fun! Just follow the colorful pictures in our manual and build exciting projects such as FM radios, digital voice, recorders, AM radios, burglar alarms, doorbells, and much more! You can even play electronic games with your friends. All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. Snap Circuits® are endorsed by educators worldwide and used in schools, libraries, museums, STEM programs and at home. The Circuit Safe® patented safety device unique to Snap Circuits® branded products makes learning circuitry safe. No tools required. Uses "AA" batteries, unless otherwise indicated. Snap Circuits® products have won many awards, including Toy of the Year (TOTY), ASTRA'S Best Toys for Kids, Parent's Choice Recommended, Good Housekeeping's Best Toy, Family Choice, National Parenting Publications Awards (NAPPA Gold), Children's Choice, Dr. Toy (100 Best Children's Products, 10 best Educational Products, Green Toy Company), The inaugural Seriously STEM award & KAPi Award.
Students will enjoy connecting batteries, wires and bulbs in various combinations to try to make bulbs light. Snap-on wire clips enable students to make connections between the batteries and bulbs quickly. A chart of various arrangements for connecting the batteries and bulbs is provided. The student studies the chart, predicts which arrangement will light the bulb and which will not, then connects the real batteries and bulbs (following the diagrams) to prove or disprove original predictions. Purchase size "D" batteries separately.
This soft, absorbent paper cleans lenses and optical elements and are available in booklet and sheet form. Book of 50 sheets 4" x 6" size.
This soft, absorbent paper cleans lenses and optical elements and are available in booklet and sheet form. Book of 50 sheets 4" x 6" size.
1 ounce bottle, fluid used for attaching cover glasses to microscope slides.
Made of plated steel wire for handling cover glasses and slides, carefully and tightly.
Made of plated steel wire for handling cover glasses and slides, carefully and tightly.
These durable test tubes with caps are plastic 16 ml
Outside Diameter: 26mm, Height: 198mm, Graduated Interval: 1ml Measuring Cylinders with a hexagonal base. The hexagonal base provides excellent stability to the cylinder, and the tapered spout works really well while pouring any reagents.
Outside Diameter: 26mm, Height: 198mm, Graduated Interval: 1ml Measuring Cylinders with a hexagonal base. The hexagonal base provides excellent stability to the cylinder, and the tapered spout works really well while pouring any reagents.
Outside Diameter: 26mm, Height: 198mm, Graduated Interval: 1ml Our Measuring Cylinders are molded as one-piece in polypropylene. These autoclavable cylinders have raised prominent graduations for easy reading and have excellent contact clarity. The broad round base provides good stability.
Outside Diameter: 26mm, Height: 198mm, Graduated Interval: 1ml Our Measuring Cylinders are molded as one-piece in polypropylene. These autoclavable cylinders have raised prominent graduations for easy reading and have excellent contact clarity. The broad round base provides good stability.
Graduation Interval: 1 ml Borosilicate cylinder with pour spout features single "to contain" scales. Hexagonal base.
Graduation Interval: 1 ml Borosilicate cylinder with pour spout features single "to contain" scales. Hexagonal base.
Neutral glass. Uniform thickness. Available in 3 sizes.
Borosilicate glass. Uniform thickness.
This is a standard borosilicate glass funnel with uniform thickness. The top outer diameter measures 54mm and the stem measures 50mm. Glass funnels are mostly inert and make it easier to pour without making a mess.
Polypropylene Space saving, graduated bottles are ideal for long-term storage of samples. Easy grip caps can be wired down for security. Head space between cap and insert plug can be used for confidential notes.
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.
This full-color, authoritative look at the behavior and biology of birds is packed with information on:
• How birds fly, migrate, nest, sing, raise their young, and more
• Ways to observe birds as they go about their daily lives
• How to attract and care for backyard birds
A perfect complement to identification guides, this Golden Guide from St. Martin's Press is destined to become a staple in the library of every bird lover and student.
Made of the finest sheet glass. Individually selected for uniform quality. Precision ground edges. Guaranteed precleaned. Approximately 1 mm thick. Size 75mm x 25mm.
These pre-cleaned slides are 75mm x 25mm, 1.0mm to 1.2mm thick, and are packaged in boxes of 72. Made of quality sheet glass, with ground edges.
Excellent reference collections and a valuable aid in identifying and comparing common and rare rocks and minerals. These mounted collections display common minerals and igneous, sedimentary and metamorphic rocks. Specimens are 1/2"-1". Rocks and Minerals Study Guide included. Grades 5-12. Ages 10-18.
Excellent reference collections and a valuable aid in identifying and comparing 35 common and rare rocks and minerals. These mounted collections display common minerals and igneous, sedimentary and metamorphic rocks. Specimens are 1/2"-1". Rocks and Minerals Study Guide included. Grades 5-12. Ages 10-18.
6 commonly known sedimentary rocks. Sedimentary rocks are formed from preexisting rocks through the processes of erosion, followed by compaction or chemical precipitation. Each generous specimen is 1 1/4" to 1 1/5" and is contained in a resealable zip lock bag with a label. Grades 5-12. Ages 10-18.
6 commonly known sedimentary rocks. Sedimentary rocks are formed from preexisting rocks through the processes of erosion, followed by compaction or chemical precipitation. Each generous specimen is 1 1/4" to 1 1/5" and is contained in a resealable zip lock bag with a label. Grades 5-12. Ages 10-18.
An economy collection of 6 commonly known igneous rocks. Igneous rocks are formed by the cooling of molten rock, either magma or lava. Each generous specimen is 1 1/4" to 1 1/5" and is contained in a resealable zip lock bag with a label. Grades 5-12. Ages 10-18.
Learn what air pollution is and how weather and geography affect it. Conduct experiments to test the air that you breathe everyday for pollutants. This kit comes complete with instruction manual, the chemicals and apparatus needed to conduct several air quality tests.