This durable traffic sign is constructed of baked enamel nonrusting heavy gauge aluminum and is designed to provide many years of outdoor use. Has 3M Scotchlite reflective sheeting for high visibility day or night. Sign measure 12" x 18".
This durable traffic sign is constructed of baked enamel nonrusting heavy gauge aluminum and is designed to provide many years of outdoor use. Sign measure 12" x 18".
This durable traffic sign is constructed of baked enamel nonrusting heavy gauge aluminum and is designed to provide many years of outdoor use. Sign measure 12" x 18".
This durable traffic sign is constructed of baked enamel nonrusting heavy gauge aluminum and is designed to provide many years of outdoor use. Sign measure 12" x 18".
Zinc metal, foil 0.010" x 12" x 36", (1 piece = 500g) - 500g
Zinc metal, foil 0.010" x 12" x 36", (1 piece = 500g) - 500g
Cupric sulfate (copper(II) sulfate) reagent fine crystals are widely used in classrooms for chemistry experiments and demonstrations, primarily due to their distinct blue color and diverse chemical properties. Common educational uses include:
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Chemical Reactions and Color Changes: Cupric sulfate is often used in experiments to demonstrate various chemical reactions, such as double displacement reactions and redox reactions. For example, when zinc metal is placed in a solution of cupric sulfate, a redox reaction occurs, producing copper metal and zinc sulfate.
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Electrolysis and Electroplating: Cupric sulfate is commonly used in electrochemistry experiments to demonstrate the principles of electrolysis. Students can use it to deposit a layer of copper on a metal object, illustrating the concept of metal plating.
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Crystallization and Hydration Studies: Cupric sulfate crystals are ideal for studying crystallization and hydration. In its hydrated form (CuSO‚„5H‚‚O), it is a vibrant blue, but it turns white upon heating when it loses its water molecules. This change is used to teach about the effects of hydration and dehydration on compounds.
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Identifying Presence of Water: Cupric sulfate can also be used as a qualitative test for water. The blue hydrated form turns white when heated (as it becomes anhydrous), and when a drop of water is added to the anhydrous form, it turns blue again. This makes it an excellent tool for illustrating reversible hydration reactions.
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Demonstrating Copper Ion Properties: The distinct blue color of cupric sulfate is due to the presence of copper(II) ions in solution. It is often used to teach students about the behavior of transition metals and their unique colors in aqueous solutions.
Cupric sulfate should be handled carefully, as it is toxic if ingested and can cause irritation to skin and eyes. Proper safety equipment, including gloves and goggles, should be used during experiments.
Introductory chemistry set designed specifically for young kids
Conduct experiments to identify different chemicals
Discover the invisible gas carbon dioxide and its very visible effects
48-page manual guides young chemists through 25 experiments
Kick off a chain reaction of fun-filled experiments with this introductory chemistry set designed specifically for young kids. Junior chemists can safely explore simple chemistry using the tools in this kit and common household substances from the kitchen, bathroom, and laundry room. Learn how to use basic chemistry equipment such as filters, test tubes, pipettes, and measuring spoons, and beakers. Make your own test tube racks out of plaster and learn about the chemical reaction that formed them. Conduct experiments to identify different chemicals using reactions, heat, evaporation, and crystallization. Examine the composition of inks and dyes with chromatography experiments, where colors magically separate from one another on a filter paper disk. Explore the properties of water, soaps, and oils. Experiment with acids and bases using indicators (pH strips and cabbage juice) to identify them. Make fizzy reactions with acids and bases to dissolve shells and inflate balloons. Discover the invisible gas carbon dioxide and its very visible effects. The full-color, 48-page manual guides inquisitive young chemists and their adult supervisors through safely conducting each of the 25 experiments.
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.
Set of 10 additional student charts and mineral samples for use with the What Mineral Is It? classroom project (Item # 12044).
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.
Ninety percent of Earth is made of minerals, natural materials that form the building blocks of the solid structures on our planet. In Minerals, students will examine the makeup of a mineral as they review such properties as hardness, luster, cleavage, streak, color and density. Learn where minerals can be found, and see the many different uses of these natural wonders, which include powder, tools, jewelry and medicine. A visit to an old silver mine shows how miners removed valuable silver ore over 100 years ago, while a fun, hands-on investigation demonstrates the crystalline structure of minerals. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Natural resources are created by Earth's processes and used as a source of energy for all life on Earth. While some are created over the course of millions of years, others are continually generated each and every day. In Natural Resources, students will examine both renewable and nonrenewable resources, touching on their sources and many uses. Discover the best methods of conserving nonrenewable resources, including how they are recycled and cleaned. A fun, hands-on investigation illustrates how students can observe the many different kinds of particles that can be found in the air, while a geothermal plant provides the setting for a look at how people can turn volcanic heat into electricity. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Set against the backdrop of a soccer team in action, Cells takes a close-up look at the smallest living unit in the human body. Kids will discover that, while most cells are very similar in structure and equipment, each type of cell has its own special function. Colorful, detailed graphics give viewers a complete rundown of the various parts of a cell. Inside the cell, they'll see various organelles -- the individual parts that work together to keep the cell functioning. Cell specialization and the process of cellular reproduction known as mitosis are also covered. Includes a fun, hands-on activity that demonstrates the concept of a "selective membrane." One of ten volumes in the Human Body in Action DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library in Action Collection. This title is based on the concepts outlined in the National Science Education Standards for Life Science: structure & function in living systems, reproduction & heredity, regulation & behavior, and diversity & adaptations of organisms. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
For thousands of years, humans dreamed of flying -- but it isn't as easy as birds make it look. Students will learn about lift, gravity, thrust and drag -- the forces that are used to get tons of steel off the ground and carry people thousands of miles before landing safely. They will also discover the role atoms and air pressure play in this amazing task as well as in other forms of flight. An interesting hands-on activity is included along with fun, real-life demonstrations to further illustrate these concepts. One of 16 volumes in the Physical Science in Action DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library in Action Collection. This title correlates to the National Science Education Standards for Physical Science -- properties and changes in properties of matter, motions and forces and transfer of energy. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Durable polypropylene cylinders come in calibrations of 10, 25, 50, 100, 250, 500 and 1000 mls. Autoclavable.
Introduce your students to the Five Kingdoms through the process of classification. Students view illustrations of various life forms and use a simple, dichotomous key to determine the appropriate kingdom and phylum of each. In the process, they'll gather valuable summary information regarding what each life form "does for a living!" Grades 6-12.
Provide your classroom with an unforgettable, hands-on lesson on ecology and the food chain. Your students will dissect owl pellets to study the skeletal remains of the raptor's prey and, using a dichotomous key, identify the species consumed. Also construct a rodent skeleton from the recovered skeletal prey. With their findings, students will construct a food web, compiling a summary of the owl's diet in order to estimate the diversity of the prey available in the ecosystem. Kit includes 5 Large and 5 Small Owl pellets. Designed for 40 students.
Oversized normal model with cut-away to show inner anatomy, including optic nerve and disc, macula, retina, central retinal artery and vein. Lens and cornea are removable. Model size: 5" x 3" x 4". Card size: 6-1/2" x 5-1/4"
Eyepieces - 10X WF
Objectives - 4X
Magnification - 40X
Illumination - Prism Optic.
Adjustable arm tilts 0 degrees - 45 degrees.
3 1/2" movable stage makes it easy for small hands to adjust specimen. Locked on, spring loaded stage clips. Maintenance free- no electrical, mirrors, gears or knobs. View minerals, stones, insects, flowers, pond water and slides. Comes complete with dust cover and instructions. 10X wide field eyepiece. 4X objective. Size and Weight-6 x 4 x 10", 3 lbs.
This prepared slide kit contains 25 ready-to-view slides of plant and animal tissue in a wooden case. The case has numbered slots and a numbered contents sheet for identifying the slides, and holds the slides securely for storage. This slide kit is suitable for general microscopic study. Slides include: Mitosis in plants; Pollen grains, w.m.; Amoeba, w.m.; Yeast cells, w.m.; Green algae/Spirogyra, w.m.; Letter "e"; Tape worm,t.s.; Silk fabric, w.m.; Lily leaf, v.s.; Mammal lung, t.s.; Meiosis in animals; Aves feather, w.m.; Lily stamen, t.s.; Mammal hair, w.m.; Mosquito mouth parts, w.m.; Housefly mouth parts, w.m.; Frog blood smear; Human blood smear; Onion cells, w.m.; Hibiscus stem, t.s.; Wool fabric, w.m.; Fish scale, w.m.; Skeletal muscle, w.m.; Herbaceous stem, young, t.s.; Skin cells, v.s.
Note:
(l.s.) longitudinal section
(t.s) transverse section
(w.m) whole mount
(sec) special section
(c.s) cross section
Set Includes:
F1 Human Lung w/Cancer
F2 Human Lung Tissue
F3 Epithelial Tissue - Sarcoma Cappozzi
F4 Lymph Node w/ Cancer Cells (sec)
F5 Decalcified Bone (sec)
F6 Liver Mammal (sec)
F7 Human Nerves; white matter (sec)
F8 Cerebral Cortex; gray matter (sec)
F9 Skeletal Muscle (l.s./c.s.)
F10 Ovary; cow or other mammal
F11 Ovum (ovule); cow or other mammal
F12 Sperm
F13 Spermary (sec)
F14 Red and White Blood Cells; Human
F15 Artery and Vein (t.s.)
Introduce the world of microscopy to your students through the selection of this prepared slide set. High-quality, yet affordable 1€� x 3€� slides labeled and stored in a slotted plastic container. Set of 15 prepared slides. Human Lung w/ Cancer Human Lung Tissue Epithelial Tissue - sarcoma cappozzi Lymph Node w/ cancer cells (sec) Decalcifi ed Bone (sec) Liver Mammal (sec) Human Nerves (sec); white matter Cerebral Cortex; gray matter (sec) Skeletal Muscle (l.s/c.s.) Ovary; cow or other mammal Ovum (Ovule); cow or other mammal Sperm Spermary (sec) Red and White Blood Cells; Human Artery and Vein (t.s.).
(l.s.) longitudinal section
(t.s) transverse section
(w.m) whole mount
(sec) special section
Set Includes:
H1 Human Salivary Gland (sec)
H2 Human Squamous Epithelium
H3 Human Stomach (sec)
H4 Human Liver (sec)
H5 Human Skin, Sweat Gland (sec)
H6 Human Skin (sec)
H7 Bone Marrow, Red (sec)
H8 Human Bone, Ground (c.s.)
H9 Human Muscle, Cardiac (sec)
H10 Human Muscle, Striated (h.s.)
H11 Human Cerebrum (sec)
H12 Human Blood; Smear; Wright Stain
H13 Human Tonsil (sec)
H14 Human Lung (sec)
H15 Human Sperm (sec)
H16 Human Testis (sec)
Introduce the world of microscopy to your students through the selection of this prepared slide set. High-quality, yet affordable, 1€� x 3€� slides labeled and stored in a slotted plastic container. Set of 16 prepared slides. Human Salivary Gland (sec) Human Squamous Epithelium Human Stomach, (sec) Human Liver (sec) Human Skin, Sweat Gland (sec) Human Skin, Section Bone Marrow, Red (sec) Human Bone, Ground (c.s.) Human Muscle, Cardia (sec) Human Muscle, Striated (h.s.) Human Cerebrum (sec) Human Blood, Smear; Wright Stain Human Tonsil (sec) Human Lung (sec) Human Sperm (sec) Human Testis (sec).
"Starting to Know" life through a microscope is the theme. Slides are: Amoeba, Paramecium, Plankton, Sponge spicules, Fruitfly, frog and human blood, fish scales, Squamous epithelium, muscle, bacteria, Euglena, Spirogyra, Diatoms, Yeast cells, Mushroom section, Onion epidermis, Magnolia, pollen grains and Lily ovary.