• ANSI Class 2 T-shirt.
• Black bottom to mask dirt.
• 6 oz 100% polyester jersey knit
• Moisture wicking fabric
• 1 left chest pocket.
ANSI Class 2 lime T-shirt with black bottom. The black bottom adds contrast, and keeps the vest from looking dirty, preserving your hi-visibility. 6 oz 100% polyester jersey knit with wicking treatment allows fabric to draw perspiration from skin to outside of shirt to evaporate. Black bottom to mask dirt. One left chest pocket.
ANSI Class 2 lime vest. 5 Point Breakaway. 100% polyester tricot. Hook & loop closure. 2 exterior waist pockets, 1 interior waist pocket. X on back side helps indicate which way the wearer is facing. Mic tabs on both sides. AwareLite reflective trim. Conforms to ANSI/ISEA 107.
Serves to demonstrate Boyle's Law. Shows what happens when gases are subjected to increased pressure. The plastic syringe, with solid wood base and platen, is constructed so that the calibrations denoting interior volume read right side up. As masses of bricks, books, or other heavy objects are increased, the gas in the syringe is compressed to smaller and smaller volume. The kit includes: 1 Syringe Cylinder w/ Cap, 1 Syringe Piston, 1 Base, 1 Platen.
Serves to demonstrate Boyle's Law. Shows what happens when gases are subjected to increased pressure. The plastic syringe, with solid wood base and platen, is constructed so that the calibrations denoting interior volume read right side up. As masses of bricks, books, or other heavy objects are increased, the gas in the syringe is compressed to smaller and smaller volume. The kit includes: 1 Syringe Cylinder w/ Cap, 1 Syringe Piston, 1 Base, 1 Platen.
To study Spectral Lines of Pure Elements / Gases. Gas under pressure in the tubes is used to produce a light for spectral analysis. Brightness of light depends on the nature of gas. Optimum intensity, line resolution and longer life. Metal ends with long life electrodes. About 26 cm long, with 90 -100 mm of central capillary. For intermittent use only, not to be used as a lamp source. These are designed to operate 30 seconds ON~30 seconds OFF. Need Spectrum Tube Power Supply or an Induction Coil, sold separately.
To study Spectral Lines of Pure Elements / Gases. Gas under pressure in the tubes is used to produce a light for spectral analysis. Brightness of light depends on the nature of gas. Optimum intensity, line resolution and longer life. Metal ends with long life electrodes. About 26 cm long, with 90 -100 mm of central capillary. For intermittent use only, not to be used as a lamp source. These are designed to operate 30 seconds ON~30 seconds OFF. Need Spectrum Tube Power Supply or an Induction Coil, sold separately.
This kit is great for all doubting Thomases in your elementary through high school classes. Fast, fascinating and easy. This kit includes: Two black-colored blocks with rim for holding melting ice cube in place. The "cooler" one is of aluminum, which is an excellent conductor of heat. The ?warmer" block is of plastic foam, which is a very poor conductor of heat.
This kit is great for all doubting Thomases in your elementary through high school classes. Fast, fascinating and easy. This kit includes: Two black-colored blocks with rim for holding melting ice cube in place. The "cooler" one is of aluminum, which is an excellent conductor of heat. The ?warmer" block is of plastic foam, which is a very poor conductor of heat.
The United hand held generator offers features and quality similar to much more expensive brands currently offered in the science education market. This 6V DC Generator can deliver up to 400mA current. The generator comes equipped with a polarity coded plug in lead with alligator clips. The clear plastic housing allows students to watch the coils, terminals, and gears. Students get a hands-on demonstration of the Second Law of Thermodynamics. Includes activity guide.
The United hand held generator offers features and quality similar to much more expensive brands currently offered in the science education market. This 6V DC Generator can deliver up to 400mA current. The generator comes equipped with a polarity coded plug in lead with alligator clips. The clear plastic housing allows students to watch the coils, terminals, and gears. Students get a hands-on demonstration of the Second Law of Thermodynamics. Includes activity guide.
Learn about static electricity and the function of a dielectric with this device. Two aluminum jars-one with an attached aluminum electrode- and one plastic jar are used to collect the charge. Assembled device is 6" tall and 3 1/4" in diameter.
Outside Diameter: 72mm, Height: 375mm, Graduated Interval: 10ml 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: 72mm, Height: 375mm, Graduated Interval: 10ml 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.
Glazed porcelain, one-piece construction. With fixed perforated plate. Straight sides with tapered stem.
This Type 1 (DIN# GL-45) Borosilicate Glass, general purpose media bottle is autoclavable with permanent white imprinted graduations and marking spots. The screw thread opening has an ID of approximately 300m. The supplied cap is liner-less and both the cap and drip free ring are polypropylene autoclavable to 140 degrees Celsius (284 degrees Fahrenheit).
36" x 24" full color laminated poster.
This is an outstanding rock identification chart! The introduction explains that each type of rock is the result of a specific mixture of minerals subjected to a clearly defined geological process. It shows and describes the most common rock-forming minerals and variations that occur within rock types.
The bulk of the poster is divided into three sections, one for each rock type: igneous, sedimentary, and metamorphic. An illustration shows how they are made, and a photograph shows a natural formation. A dozen other photographs show representative specimens. Each is accompanied by an informative caption citing identifying characteristics and common variations.
A bonus section shows and explains some of the more specialized and popular rock forms, such as geodes, concretions, agates, and meteorites.
This is a great poster for earth science classes. Rock collectors find it invaluable for quick reference.
36" x 24" full color laminated poster. This is an outstanding rock identification chart! The introduction explains that each type of rock is the result of a specific mixture of minerals subjected to a clearly defined geological process. It shows and describes the most common rock-forming minerals and variations that occur within rock types. The bulk of the poster is divided into three sections, one for each rock type: igneous, sedimentary, and metamorphic. An illustration shows how they are made, and a photograph shows a natural formation. A dozen other photographs show representative specimens. Each is accompanied by an informative caption citing identifying characteristics and common variations. A bonus section shows and explains some of the more specialized and popular rock forms, such as geodes, concretions, agates, and meteorites. This is a great poster for earth science classes. Rock collectors find it invaluable for quick reference.
24" x 36" full color laminated poster.
Animal Kingdom 2 presents the new cladistics classification system. Six newly established phyla / clades have been added as well as eleven containing only extinct species. This increased the number of phyla / clades from 27 to 44. They are grouped into the nine primary clades. This poster is an essential reference chart for teachers, students, and professionals dealing with both living and prehistoric species.
24" x 36" full color laminated poster. Animal Kingdom 2 presents the new cladistics classification system. Six newly established phyla / clades have been added as well as eleven containing only extinct species. This increased the number of phyla / clades from 27 to 44. They are grouped into the nine primary clades. This poster is an essential reference chart for teachers, students, and professionals dealing with both living and prehistoric species.
This is the Traditional Scale of Hardness Collection and a Test Kit. Includes Streak Plate, Penny, Glass Plates, Nail and nine specimens 1" x 1.5" number coded. Grades 6-12. Ages 11-18.
This is the Traditional Scale of Hardness Collection and a Test Kit. Includes Streak Plate, Penny, Glass Plates, Nail and nine specimens 1" x 1.5" number coded. Grades 6-12. Ages 11-18.
Compare and contrast the physical properties of streak and color in this 8 specimen mineral collection. Numbered specimens are approximately 1 x 1.5". Streak plate and key sheet included. Grades 5-12. Ages 10-18. Ages 10-18.
Compare and contrast the physical properties of streak and color in this 8 specimen mineral collection. Numbered specimens are approximately 1 x 1.5". Streak plate and key sheet included. Grades 5-12. Ages 10-18. Ages 10-18.
Contains 15 representative metamorphic rock specimens, each approximately 1.5" x 1.5", number-coded in a compartmented container. Grades 5-12. Ages 10-18.
The 21 plastic fossils and detailed Laboratory Manual in this kit will let your students become practicing paleontologists. Kit conveys importance of fossil study to investigations in geology, history, mapping, and stratigraphic correlation. Grades 7-12.
Limewater solution is commonly used for testing the presence of carbon dioxide in gaseous samples in school laboratories, and refining of sugar in a process called carbonatation. 4 liters.
2,6-Dichloroindophenol Sodium salt (indophenol), reagent - 1g
A creative way for children to learn astronomy concepts. Players toss the 24" ball to each other and call out the answers to the problem found under their left thumb. Many variations of play! Includes a list of game suggestions with directions and answers! For grades 4-8.
Reflector for use with Multi-Gate & Xpandit Barricades. Easily attaches to the Multi-Gate & Xpandit Barricades. Provides high visibility at night time and dark environments. 5" Diameter.