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.
50 ml flask uses a size 1 stopper
150 ml flask uses a size 5 stopper
250 ml flask uses a size 6.5 stopper
500 ml flask uses a size 6.5 stopper
1000 ml flask uses a size 9 stopper
Stoppers not included.
These Borosilicate Glass Liebig Condensers find wide usage in the laboratory such as distillation, reflux operations, extraction etc. Sealed inner tube, large capacity of water jacket gives efficient cooling. Sized by effective length. 22 mm diameter.
Graduated Interval: 0.10ml Borosilicate glass burettes offer accuracy, reliability and durability even after repeated usage. Each burette is individually calibrated for precision and high accuracy. All graduations are durable in white enamel. The burette stopcocks are specially ground so they provide leak resistant operation. Burettes with general purpose (gp) screwthread stopcocks with PTFE keys offer excellent flow control. Also, burettes with these gp stopcocks have unique Fluon/glass seals that prevent leakage.
50ml Glass Burette. Graduated Interval: 0.10ml Borosilicate glass burettes offer accuracy, reliability and durability even after repeated usage. Each burette is individually calibrated for precision and high accuracy. All graduations are durable in white enamel. The burette stopcocks are specially ground so they provide leak resistant operation. Burettes with general purpose (gp) screwthread stopcocks with PTFE keys offer excellent flow control. Also, burettes with these gp stopcocks have unique Fluon/glass seals that prevent leakage.
Graduated Interval: 0.10ml Borosilicate glass burettes offer accuracy, reliability and durability even after repeated usage. Each burette is individually calibrated for precision and high accuracy. All graduations are durable in white enamel. The burette stopcocks are specially ground so they provide leak resistant operation. Burettes with general purpose (gp) screwthread stopcocks with PTFE keys offer excellent flow control. Also, burettes with these gp stopcocks have unique Fluon/glass seals that prevent leakage.
25ml Glass Burette. Graduated Interval: 0.10ml Borosilicate glass burettes offer accuracy, reliability and durability even after repeated usage. Each burette is individually calibrated for precision and high accuracy. All graduations are durable in white enamel. The burette stopcocks are specially ground so they provide leak resistant operation. Burettes with general purpose (gp) screwthread stopcocks with PTFE keys offer excellent flow control. Also, burettes with these gp stopcocks have unique Fluon/glass seals that prevent leakage.
Graduated Interval: 0.05ml Borosilicate glass burettes offer accuracy, reliability and durability even after repeated usage. Each burette is individually calibrated for precision and high accuracy. All graduations are durable in white enamel. The burette stopcocks are specially ground so they provide leak resistant operation. Burettes with general purpose (gp) screwthread stopcocks with PTFE keys offer excellent flow control. Also, burettes with these gp stopcocks have unique Fluon/glass seals that prevent leakage.
Graduated Interval: 0.05ml Borosilicate glass burettes offer accuracy, reliability and durability even after repeated usage. Each burette is individually calibrated for precision and high accuracy. All graduations are durable in white enamel. The burette stopcocks are specially ground so they provide leak resistant operation. Burettes with general purpose (gp) screwthread stopcocks with PTFE keys offer excellent flow control. Also, burettes with these gp stopcocks have unique Fluon/glass seals that prevent leakage.
Bacteria (bacillus) gram - (negative) Bacteria (bacillus) gram + (positive) Chromosome (female) in Giemsa Chromosome (male) in Giemsa Mitosis; stages of plant Mitosis
Bacteria (bacillus) gram - (negative) Bacteria (bacillus) gram + (positive) Chromosome (female) in Giemsa Chromosome (male) in Giemsa Mitosis; stages of plant Mitosis
• Kjeldahl Bulb with #2 Stopper
• Borosilicate glass
• Sold in eaches
• Easy handling
• Efficient
Kjeldahl Bulb w/ Stoppers
Nickel-plated brass burner tube 13 mm diameter with rotatable non-removable air regulator, on stable cast iron base, baked hammertone finish, with serrated gas inlet tube and threaded needle valve to regulate the intensity of the flame.
Nickel-plated brass burner tube 13 mm diameter with rotatable non-removable air regulator, on stable cast iron base, baked hammertone finish, with serrated gas inlet tube and threaded needle valve to regulate the intensity of the flame.
Versatile, polypropylene containers are graduated in ounces and milliliters. Graduated to 2 ounces.
These polypropylene bottles are rigid, translucent and have excellent contact clarity. These bottles can be autoclaved filled as well as empty. The polypropylene cap has a built-in seal ring to make these bottles leak proof.
| Size | Height | Neck Diameter ID/OD |
Pack Size |
| 60ml | 73mm | 20mm / 25mm |
Pack of 12
|
| 125ml | 100mm | 27mm / 32mm |
Pack of 12
|
| 250ml | 137mm | 35mm / 41mm |
Pack of 12
|
| 500ml | 149mm |
35mm / 41mm |
Pack of 12
|
|
1000ml
|
218mm |
35mm / 41mm |
Pack of 6
|
These polypropylene bottles are rigid, translucent and have excellent contact clarity. These bottles can be autoclaved filled as well when they are empty. The polypropylene cap has a built-in seal ring to make these bottles leak proof. Avaialble in 5 sizes.
| Size | Height | Neck Diameter ID/OD |
Pack Size |
| 60ml | 72mm | 17mm / 22mm | Pack of 12 |
| 125ml | 110mm | 16.5mm / 20mm | Pack of 12 |
| 250ml | 139mm | 20mm / 25mm | Pack of 12 |
| 500ml | 165mm | 20mm / 25mm | Pack of 12 |
| 1000ml | 222mm | 20mm / 25mm | Pack of 6 |
36" x 24" full color laminated poster. "We can follow our dreams to distant stars...," declared President Reagan when he proposed this ambitious project in his 1984 State of the Union address. This poster provides a comprehensive overview of the program goals, how it got started, its various components, and its appearance when finished. The visiting Space Shuttle provides scale.
36" x 24" full color laminated poster. "We can follow our dreams to distant stars...," declared President Reagan when he proposed this ambitious project in his 1984 State of the Union address. This poster provides a comprehensive overview of the program goals, how it got started, its various components, and its appearance when finished. The visiting Space Shuttle provides scale.
36" x 24" full color laminated poster.
Fossils were a mystery for thousands of years; then a few pioneering scientists realized that they were the remains or traces of once-living organisms.
Well-known bone-type fossils are actually rocks, the result of a process called mineralization in which minerals replace decaying tissue. This process is shown and explained. All of the other fossil types are also explored.
The rarity of fossils is dramatically presented, and strange things sometimes mistaken for fossils are identified. There’s an introduction to fossil expeditions and a summary of how fossils contribute to our understanding of the earth and life on it.
There is an especially helpful section on the relationships between fossils and geology. It covers the principle of original horizontality, the law of superimposition, the principle of faunal succession, the geological time scale, index fossils, relative dating, and absolute dating.
All of this is conveyed through detailed illustrations showing the processes, excellent photographs of representative specimens, and interesting and informative captions. This poster is a great aid to museum interpretive programs and is extremely beneficial in the study of both life and earth sciences.
24" x 36" full color laminated poster.
Arthropods are animals that have an external skeleton. They are the most abundant animals on Earth but are often misunderstood. Spiders, millipedes, and other arthropods are often mistakenly referred to as “insects” and “bugs.” This poster explains the differences.
Each of the five clades (formerly subphylum) is carefully explored. Highly detailed illustrations show an incredible 98 species, many life size. All are identified by both common and scientific names.
Insects account for the great bulk of the arthropods, and this poster includes representatives of all the major orders. The crustaceans include crabs and lobsters as well as shrimp, krill, and even barnacles. Included with them is the giant sea scorpion; this long-extinct animal is the largest arthropod that ever lived, reaching a length of six feet.
This remarkable poster even includes the prehistoric trilobites. They were the dominant life form during the Permian but became extinct. Highly educational, very attractive, and decorative, this poster appeals to teachers, students, collectors, and professional entomologists.
24" x 36" full color laminated poster. Arthropods are animals that have an external skeleton. They are the most abundant animals on Earth but are often misunderstood. Spiders, millipedes, and other arthropods are often mistakenly referred to as “insects” and “bugs.” This poster explains the differences. Each of the five clades (formerly subphylum) is carefully explored. Highly detailed illustrations show an incredible 98 species, many life size. All are identified by both common and scientific names. Insects account for the great bulk of the arthropods, and this poster includes representatives of all the major orders. The crustaceans include crabs and lobsters as well as shrimp, krill, and even barnacles. Included with them is the giant sea scorpion; this long-extinct animal is the largest arthropod that ever lived, reaching a length of six feet. This remarkable poster even includes the prehistoric trilobites. They were the dominant life form during the Permian but became extinct. Highly educational, very attractive, and decorative, this poster appeals to teachers, students, collectors, and professional entomologists.
24"x 36" full color laminated poster.
This is a beautiful poster that is cherished by animal lovers, but it’s also an extremely useful educational tool, as it provides a comprehensive overview of the subject. It is divided into three sections, one for each type of mammal: the egg-laying monotremes, the pouched marsupials, and the familiar placental mammals. The latter is divided into 19 subsections, one for each of the orders. Superb, highly detailed illustrations show 98 representative species, including everything from the aardvark to the zebra.
This poster is an excellent way to introduce young children to a great many animals. However, its outstanding organization and presentation make it an invaluable reference chart for teachers, students, and professionals involved or interested in zoology, comparative anatomy, and taxonomy, the naming and classification of life forms.
24"x 36" full color laminated poster. This is a beautiful poster that is cherished by animal lovers, but it’s also an extremely useful educational tool, as it provides a comprehensive overview of the subject. It is divided into three sections, one for each type of mammal: the egg-laying monotremes, the pouched marsupials, and the familiar placental mammals. The latter is divided into 19 subsections, one for each of the orders. Superb, highly detailed illustrations show 98 representative species, including everything from the aardvark to the zebra. This poster is an excellent way to introduce young children to a great many animals. However, its outstanding organization and presentation make it an invaluable reference chart for teachers, students, and professionals involved or interested in zoology, comparative anatomy, and taxonomy, the naming and classification of life forms.
24" x 36" full color laminated poster. Through space imagery, this poster explores some of the many ways that our knowledge of our own planet has been expanded greatly by using satellites. Topics include making topographical maps, weather forecasting, documenting environmental trends, tracking wildfires, and more.
24" x 36" full color laminated poster. Through space imagery, this poster explores some of the many ways that our knowledge of our own planet has been expanded greatly by using satellites. Topics include making topographical maps, weather forecasting, documenting environmental trends, tracking wildfires, and more.
What can you do to create an extraordinary science project? How is a clear and easy-to-follow display organized? What are the do's and don'ts of science fair projects? Where will you find the best collection of science fair ideas? The answers-and the fun-are all in this exciting book of innovative, easy-to-understand, show-stopping science fair projects. Discover how to develop a topic from your own idea; research, create, and assemble your project; then display it in a way that will make it stand out from the crowd. Tackle some of Janice VanCleave's favorite experments on topics ranging from astronomy, biology, and engineering to botany, geology, and oceanography. Then let your mind loose to explore whatever topic most interests you. Enjoy working on intrigluing experiments while learning the secrets pf science fair success!
What can you do to create an extraordinary science project? How is a clear and easy-to-follow display organized? What are the do's and don'ts of science fair projects? Where will you find the best collection of science fair ideas? The answers-and the fun-are all in this exciting book of innovative, easy-to-understand, show-stopping science fair projects. Discover how to develop a topic from your own idea; research, create, and assemble your project; then display it in a way that will make it stand out from the crowd. Tackle some of Janice VanCleave's favorite experments on topics ranging from astronomy, biology, and engineering to botany, geology, and oceanography. Then let your mind loose to explore whatever topic most interests you. Enjoy working on intrigluing experiments while learning the secrets pf science fair success!
You asked for it! Just what kids, teachers, and parents have been waiting for-two valuable resources for doing super science fair projects. Includes project ideas, dos and don'ts, display tips and much more! For ages 8-12.
You asked for it! Just what kids, teachers, and parents have been waiting for-two valuable resources for doing super science fair projects. Includes project ideas, dos and don'ts, display tips and much more! For ages 8-12.
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.
Cleans optical glass surfaces, leaving a clear non-streaking finish. 2 oz. bottle.
Cleans optical glass surfaces, leaving a clear non-streaking finish. 2 oz. bottle.
• Cargille Immersion oils meet ISO standards for performance
• Available in 1/4 oz bottles
• Types A and B are used for most fluorescent microscopy applications, type NVH.
Cargille Immersion Oil is required for high magnification and to obtain sharp images with clear resolution. These Immersion oils meet ISO standards for quality. Type A (low viscosity) and Type B (high viscosity) are used for normal microscopy applications with viscosities from 150-1250 (centistokes). The greater the gap between cover glass and objective, or condenser and slide, the more desirable high viscosity becomes. Type B is recommended when there is a larger gap between your cover slip and the objective. For extremely large gaps, NVH is required.
Our stethoscopes have adjustable, chrome plated binaurals, and PVC Y-tubing. Good quality, and economical.
Our stethoscopes have adjustable, chrome plated binaurals, and PVC Y-tubing. Good quality, and economical.
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.
Provides a primary presentation of the basic rock types. Includes five each of igneous, sedimentary and metamorphic rocks, totaling 15 specimens, approximately 1.5" x 1.5". Grades 6-12. Ages 11-18.