• Set up your lab and learn how to safely handle lab equipment and chemicals
• Professional quality equipment helps you make the most of your experiments
• Learn about indicators with litmus solution and write a message in invisible ink.
• Experiment with air pressure, surface tension, and physical properties of fluids
• Get exposure to a broad range of chemical phenomena
• Provides clear instructions, explanations, and asks and answers questions
• Thorough safety precautions and instructions ensure safe experimentation.
• 80-page, full-color experiment manual
• 125 diverse experiments.
• Ages 10 and up.
Enroll in CHEM C1000 and prepare for a lifetime of fascination with this essential science through 125 diverse experiments. Start with an introduction to the field of chemistry and famous chemists. Set up your lab space and learn how to safely handle the lab equipment and chemicals. Learn about indicators with litmus solution and write a secret message in invisible ink. Test the inks from your colored markers on the chromatography racetrack to reveal their different color components. Experiment with air pressure, surface tension, and the physical properties of fluids. Experiment with two well-known metals, iron and copper. Investigate carbon dioxide. Dissolve metals with electrochemical reactions. Explore water and its elements, saturated and unsaturated solutions, and crystals. Split water into hydrogen and oxygen with electrolysis, and form oxygen from hydrogen peroxide. Experiment with soaps, detergents, and emulsions of water and oil. Investigate chemistry in the kitchen by experimenting with sugar, honey, starch, eggs and proteins, fatty acids, and calcium. Begin to build a strong foundation in chemistry with exposure to a broad range of chemical phenomena and hands-on laboratory experiences. This kit provides clear instructions for preparing and performing the experiments, offers safety advice, offers explanations for the observed occurrences, and asks and answers questions about the results. Thorough safety precautions and instructions ensure safe experimentation. Professional quality equipment helps you make the most of your chemistry experiments. The 80-page, full-color experiment manual guides aspiring young chemists through each of the 125 experiments. Ages 10 and up.
• Kit includes more than 300 building pieces
• Build a windmill, two-speed crane, force scale, sail car, mars robot, and more
• Experiment with gears, levers, screws, inclined planes, pulleys, wheels and axles
• Learn and understand the most fundamental physics equations
• It is a 64-page, full-color experiment manual
• Centrifuge, pinball, centrifugal switch, ship's lantern, and dozens of other models
• Ages 8 and up
Force = mass x acceleration and don't forget to factor in the fun. This kit studies the Science of Matter and Energy. Through building 36 models and conducting subsequent experiments with the models, you will learn the fundamental laws of mechanical physics. This hands-on approach is both fun and effective because the principles of physics are demonstrated right in front of you. Physics Workshop includes more than 300 building pieces. The full-color 64-page manual presents assembly instructions, experiments and explanations in a richly-illustrated, easy-to-follow manner. 73 Experiments and Activities: Build a windmill, crane, sail car, mars robot, hammer machine, centrifuge, scale and dozens of other models. Experiment with simple machines: gears, levers, screws, inclined planes, pulleys, wheels and axles. Learn and understand the most fundamental physics equations. Read about amazing real-world applications for physics.
• Build spectacular models and devices, such as a wind tunnel and a hydraulic lift
• Study advanced topics like fluid dynamics, energy, hydraulics, and pneumatics
• Investigate how air & water rest and flow, what they can carry and how they move
• More than 212 parts are included in this kit
• Learn why a streamlined shape lets a car drive faster
• Learn how power plants convert a current of water into electrical current
Physics Pro is our biggest, most advanced physics kit. With this kit, you can continue your study of statics and dynamics from previous lessons and begin your study of more advanced topics in physics, including fluid dynamics, energy, oscillation, hydraulics, and pneumatics. By adding advanced topics like fluid dynamics to your physics repertoire, you can now build some really spectacular models and devices, such as a wind tunnel, pneumatic shocks, and a hydraulic lift. You will see how physics extends far beyond the classroom, giving us an amazing set of tools that can be applied in the real world to engineer marvelous things. The main focus of the kit is the behavior of the two most important fluids in our world — water and air — and objects immersed in them. You will investigate how air and water rest and flow, what they can carry and how they move. With experiments and models, you will find out what forces work on them and what kinds of energy they possess. You will learn how ships float and airplanes fly, why a streamlined shape lets a car drive faster and how power plants convert a current of water into electrical current. The 96-page, full-color experiment manual has two major sections. In the first part, you will enter the physics lab, where you will get to know the properties of air and water and become familiar with currents and energy. There is a series of 17 experiments in which you will start building smaller models. In the second part, you will move on to the workshop, where you will build 14 larger models of complex real-world devices. More than 212 parts are included in this kit, which are compatible with our other Physics kits.
• Build hovercraft that glides across smooth floors water on a cushion of air
• Experiment with propellers and impellers to learn about air pressure and air flow
• Learn about air pressure and air flow
• Full-color, 32-page experiment manual
• 59 building pieces.
Learn how even though air is invisible, it still has mass and can support very heavy objects under the right circumstances. The models in this kit use a unique blower motor and a safe, soft-bladed fan to drive a series of models. The blower motor uses an impeller to increase the air pressure under the hovercraft. The fan creates a stream of air to push the vehicle forward. Using these components, you can build and investigate the hovercraft and other machines that rely on air and air pressure to function. Construct a batting machine that tosses a ball upward on a stream of air. Assemble a basketball launcher and practice shooting hoops with air power. Make a fan-driven car that drives forward, propelled by a stream of air. Experiment to see how much weight your hovercraft can support.
Polished wooden top 600x100x 20mm. With pulley. Hinged to a polished wooden base 400 x 100 x 20mm. The plane can be fixed at any angle with the help of a clamp. Supplied complete with aluminum graduated protractor, cylindrical plated metal roller 38mm in diameter and scale pan but without weights.
Polished wooden top 600x100x 20mm. With pulley. Hinged to a polished wooden base 400 x 100 x 20mm. The plane can be fixed at any angle with the help of a clamp. Supplied complete with aluminum graduated protractor, cylindrical plated metal roller 38mm in diameter and scale pan but without weights.
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.
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.
Simple for elementary level students yet comprehensive enough for middle school, this colorful teaching model was designed specifically for hands-on use. The model is made of resilient, non-toxic, EVA foam to withstand years of active investigation. A thorough, detailed Teacher's guide includes 5 inquiry-based lab activities, reproducible worksheets, complete background information, cross-curricular extension activities, assessment ideas and more. Topics covered include cell structure and function, osmosis, eukaryotes, bacteria and more. Complete kit at a low cost!.
Simple for elementary level students yet comprehensive enough for middle school, this colorful teaching model was designed specifically for hands-on use. The model is made of resilient, non-toxic, EVA foam to withstand years of active investigation. A thorough, detailed Teacher's guide includes 5 inquiry-based lab activities, reproducible worksheets, complete background information, cross-curricular extension activities, assessment ideas and more. Topics covered include cell structure and function, osmosis, eukaryotes, bacteria and more. Complete kit at a low cost!.
Used to separate and grade soil samples. Stacked set consists of 4 screen sieves with graduated mesh sizes, a solid container at the bottom, and a lid. A soil sample is then placed in the top container, and the entire set agitated so that particles of various size will drop through and are sorted by size. Each kit includes 4 high impact plastic sieves, 6" with wire mesh Nos. 6, 20, 40 and 100. 1 bottom pan and 1 lid.
Same as 15626, but does not include Basic Linear Expansion apparatus.
Same as 15626, but does not include Basic Linear Expansion apparatus.
Metal construction. Complete with 3 metal rods (aluminum, bass and iron). stove hammer finish mounted on wooden polished base.
Metal construction. Complete with 3 metal rods (aluminum, bass and iron). stove hammer finish mounted on wooden polished base.
The zPix 200 MM-740 from Carson is a powerful Zoom Digital Microscope that displays the Magnified image right on your computer screen. The impressive 36x-176x Zoom Magnification allows you to see details of ordinary objects you never knew existed! Capture an image by using the built-in 1.3 megapixel resolution Digital Camera. You can even capture close-focus video! The zPix 200 MM-740 Zoom Digital Microscope is compatible with the following: Mac OSX 10.4 or later, OSX 10 Mavericks, PC with Windows 2000 SP4, Windows XP, Windows Vista, Windows 7. A USB 2.0 port is required. DOES NOT WORK WITH TABLETS.
The zPix 200 MM-740 from Carson is a powerful Zoom Digital Microscope that displays the Magnified image right on your computer screen. The impressive 36x-176x Zoom Magnification allows you to see details of ordinary objects you never knew existed! Capture an image by using the built-in 1.3 megapixel resolution Digital Camera. You can even capture close-focus video! The zPix 200 MM-740 Zoom Digital Microscope is compatible with the following: Mac OSX 10.4 or later, OSX 10 Mavericks, PC with Windows 2000 SP4, Windows XP, Windows Vista, Windows 7. A USB 2.0 port is required. DOES NOT WORK WITH TABLETS.
The zPix 300, MM-940 is a powerful 2 megapixel zoom USB digital microscope that displays a magnified image right on your computer screen. The impressive 86x-457x effective magnification (on 21″ monitor) allows you to see details of ordinary objects that you never knew existed! Capture an image to keep with the click of a button. You can even capture close focus video and send it to your friends and family. Use the base attachment to view prepared slides or remove the base and place the microscope on any surface to reveal extremely fine details. The zPix 300 USB digital microscope will provide hours of fascinating and educational entertainment for adults and children alike.
To determine the power, multiply your computer screen size by 4.09-21.76.
Example: 32″ computer screen would magnify 131-696x (power). Please note, the effective magnification is a combination of the optical system and a high powered digital zoom.
The latest version of the zPix 300 MM-940 zoom digital microscope is compatible with the following: Windows 10/8/8.1/7/Vista/XP SP2+ and all Mac OS. A USB 2.0/3.0 port is required.
* DOES NOT WORK WITH TABLETS *
Look, listen, and learn as wildlife warrior, Bindi Irwin, shares kid-friendly facts about nature! Take a closer look with the only talking microscope for preschoolers packed with photo-quality images and audio about the amazing, up-close world of animals, plants, everyday items and more.
· 5x magnification with focus free dual eyepieces
· Introduce children to a real scientific toy
• Provides visual detail and information about animals, plants, and everyday items
· Contains 20 slides and over 100 facts and questions
Cut to the Chase
· 2 Modes: Fact Mode and Quiz Mode
· 20 Slides, each with three four-color photo-quality images, for a total of 60 images
· 2 Comfortable eyepieces-no need to close one eye!
· Easy cleanup and storage: slides fit inside microscope
· Requires 3 AAA batteries (not included)
· Multilingual audio-4 languages included!
• For ages 4-7
Includes: Pinworm infection of appendix, Meningitis of the brain, Arterial occlusion, Emphysema, Lung infarction, Stomach ulcer, Kidney infarction, Thyroid goiter, Liver cirrhosis; Gangrene; Carcinoma of the lung, skin, kidney, breast and liver.
Includes: Pinworm infection of appendix, Meningitis of the brain, Arterial occlusion, Emphysema, Lung infarction, Stomach ulcer, Kidney infarction, Thyroid goiter, Liver cirrhosis; Gangrene; Carcinoma of the lung, skin, kidney, breast and liver.
Contains: Amoeba proteus, Paramecium, Grantia, Hydra, Obelia hydroid colony, Gonionemus, Planaria, Taenia scolex, Tapeworm gravid segment, male hookworm, Trichinella, Earthworm, Drosophila, frog and human blood, Kidney section, Epithelium, frog skin, striated muscle, Lung, Trachea, Amphiuma Kidney section, skin Amphiuma, wing feather, Turtle esophagus, Intestine.
Contains: Amoeba proteus, Paramecium, Grantia, Hydra, Obelia hydroid colony, Gonionemus, Planaria, Taenia scolex, Tapeworm gravid segment, male hookworm, Trichinella, Earthworm, Drosophila, frog and human blood, Kidney section, Epithelium, frog skin, striated muscle, Lung, Trachea, Amphiuma Kidney section, skin Amphiuma, wing feather, Turtle esophagus, Intestine.
Penicillium, Coprinus, Spirogyra vegetative and conjugating, Pediastrum, bacteria 3 shapes, Moss male head, Pine life, Onion mitosis, Corn stem, Lilac leaf, pollen, Lily ovary, Paramecium, Amoeba proteus, Grantia spicules, Hydra, Planaria, letter "e", Trichinella, Daphnia, Cartilage hyaline, frog and human blood and skin.
Penicillium, Coprinus, Spirogyra vegetative and conjugating, Pediastrum, bacteria 3 shapes, Moss male head, Pine life, Onion mitosis, Corn stem, Lilac leaf, pollen, Lily ovary, Paramecium, Amoeba proteus, Grantia spicules, Hydra, Planaria, letter "e", Trichinella, Daphnia, Cartilage hyaline, frog and human blood and skin.
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 10 prepared slides.
Set Includes:
M1 Anthrax (Bacillus Anthracis)
M2 Tetanus (Clostridium Tetani)
M3 Botulism (Clostridium botulinum)
M4 Typhoid Fever (Salmonella typhosa)
M5 Epidemic Dysentery (Shigella dysenteriae)
M6 Tuberculosis (Mycobacterium tuberculosis)
M7 Supperative and Putrefying Infections (Proteus vulgaris)
M8 Virulent Pneumonia (Klebsiella pneumoniae)
M9 Hemolytic Infections such as Strep Throat (Streptococcus pyogenes)
M10 Blue-Pus Infections such as Wound and Burn Infections (Pseudomonas aeruginosa)
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 10 prepared slides. Includes: Anthrax (Bacillus Anthracis) Tetanus (Clostridium Tetani) Botulism (Clostridium Botulinum) Typhoid Fever (Salmonella Typhosa) Epidemic Dysentery (Shigella Dysenteriae) Tuberculosis (Mycobacterium Tuberculosis) Supperative and Putrefying Infections (Proteus Vulgaris) Virulent Pneumonia (Klebsiella Pneumoniae) Hemolytic Infections such as strep throat (Streptococcus Pyogenes) Blue-pus Infections such as wound and burn infections (Pseudomonas Aeruginosa)
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.).
Slides include: Bacteria, smear from mouth; Onion root tip, l.s., mitosis; Amoeba proteus, w.m.; Monocot/Dicot stem, c.m.; Paramecium, w.m.; Lilac leaf, c.s.; Spirogyra, vegetative filaments, w.m.; Hydra, w.m.; Bread molds, sexual, w.m.; Earthworm, c.s. of posterior; Buttercup root, c.s.; Human blood smear.
This slide kit contains 12 ready-to-view biology slides in a plastic 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 biological microscopic study. Slides include: Bacteria, smear from mouth; Onion root tip, l.s., mitosis; Amoeba proteus, w.m.; Monocot/Dicot stem, c.m.; Paramecium, w.m.; Lilac leaf, c.s.; Spirogyra, vegetative filaments, w.m.; Hydra, w.m.; Bread molds, sexual, w.m.; Earthworm, c.s. of posterior; Buttercup root, c.s.; Human blood smear.
Slides include: Amoeba proteus, w.m.; Hydra, w.m.; Earthworm, c.s. of posterior; Daphnia and cyclops, w.m.; Housefly head with mouthparts, w.m.; Housefly leg with clinging pads; Mouth smear, squamous epithelium; Straited muscle, l.s.; Human blood smear; Bacteria, smear from mouth; Diatoms, mixed, w.m.; Spirogrya, vegetative filaments, w.m.; Aspergillus, w.m.; Aspergillus, w.m.; Moss stem with leaves, w.m.; Buttercup root, c.s.; Corn stem, c.s.; Lily anthers, c.s.; Lily ovary, c.s.; Onion epidermis, w.m.; Onion root tip, l.s., mitosis; Human scalp, vertical sections; Compact bone, c.s.; Sunflower stem, c.s.; Lilac leaf, c.s.; Honeybee anterior and posterior wing.
This prepared slide kit contains 25 ready-to-view biology slides 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 biological microscopic study. Slides include: Amoeba proteus, w.m.; Hydra, w.m.; Earthworm, c.s. of posterior; Daphnia and cyclops, w.m.; Housefly head with mouthparts, w.m.; Housefly leg with clinging pads; Mouth smear, squamous epithelium; Straited muscle, l.s.; Human blood smear; Bacteria, smear from mouth; Diatoms, mixed, w.m.; Spirogrya, vegetative filaments, w.m.; Aspergillus, w.m.; Aspergillus, w.m.; Moss stem with leaves, w.m.; Buttercup root, c.s.; Corn stem, c.s.; Lily anthers, c.s.; Lily ovary, c.s.; Onion epidermis, w.m.; Onion root tip, l.s., mitosis; Human scalp, vertical sections; Compact bone, c.s.; Sunflower stem, c.s.; Lilac leaf, c.s.; Honeybee anterior and posterior wing.
Set includes: letter "e", w.m.; animal hairs, w.m.; natural fibers, w.m./ synthetic fibers, w.m.; bacteria types, sm.; pollen grains, w.m.; Starch grains, w.m.; trichina, w.m; cornea of insect eye, sec.; body louse, w.m.; cat flea, w.m.; butterfly wing to show scales, w.m.; Mosquito larvae, w.m.; Mosquito head, w.m.; Fly leg, w.m.; Honeybee wings, w. m.; Honeybee sting, and poison sac, w.m.; feather, w.m.; Paramecium. w.m.; human blood, sm.; Yeast budding, sm.; plant hairs, w.m.; Corn stem, c.s.; Basswood stem, c.s.; Starfish eggs in cleavage, w.m.
Set includes: letter "e", w.m.; animal hairs, w.m.; natural fibers, w.m./ synthetic fibers, w.m.; bacteria types, sm.; pollen grains, w.m.; Starch grains, w.m.; trichina, w.m; cornea of insect eye, sec.; body louse, w.m.; cat flea, w.m.; butterfly wing to show scales, w.m.; Mosquito larvae, w.m.; Mosquito head, w.m.; Fly leg, w.m.; Honeybee wings, w. m.; Honeybee sting, and poison sac, w.m.; feather, w.m.; Paramecium. w.m.; human blood, sm.; Yeast budding, sm.; plant hairs, w.m.; Corn stem, c.s.; Basswood stem, c.s.; Starfish eggs in cleavage, w.m.
• Eyepieces - 5X WF
• Objectives - 10X
• Magnification - 50X
• 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. 5X or 10X wide field eyepiece. 4X or 10X objective. Size and Weight-6 x 4 x 10", 3 lbs. Limited lifetime warranty
Eyepieces - 5X WF Objectives - 10X Magnification - 50X 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. 5X or 10X wide field eyepiece. 4X or 10X objective. Size and Weight-6 x 4 x 10", 3 lbs. Limited lifetime warranty
• Eyepieces - 5X WF
• Objectives - 4X
• Magnification - 20X
• 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. 5X or 10X wide field eyepiece. 4X or 10X objective. Size and Weight-6 x 4 x 10", 3 lbs. Limited lifetime warranty
Eyepieces - 5X WF Objectives - 4X Magnification - 20X 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. 5X or 10X wide field eyepiece. 4X or 10X objective. Size and Weight-6 x 4 x 10", 3 lbs. Limited lifetime warranty
• Eyepieces - 10X Widefield
• Objectives - 2X
• Magnification - 20X
• Monocular head 45 degrees inclined and 360 degrees rotatable head
• Rack and pinion focusing with built-in slip clutch system
• Locked-in 10x wide field eyepiece
• 2x objective-total 20x magnification
• Large 14 X 11cm stage with side clips
• Reversable white/black stage plate
Easy for young students to adjust specimen on open stage. Upright image- dissecting microscope. Comes complete with dust cover and user manual in styrofoam package. Perfect for viewing, rocks, insects, coins, stamps and so on. Size and Weight 8 X 4 X 10", 3 lbs. Warranty - Limited Lifetime.
Eyepieces - 10X Widefield Objectives - 2X Magnification - 20X. Monocular head 45 degrees inclined and 360 degrees rotatable head. Rack and pinion focusing with built-in slip clutch system. Locked-in 10x wide field eyepiece. 2x objective-total 20x magnification. Large 14 X 11cm stage with side clips. Reversable white/black stage plate. Easy for young students to adjust specimen on open stage. Upright image- dissecting microscope. Comes complete with dust cover and user manual in styrofoam package. Perfect for viewing, rocks, insects, coins, stamps and so on. Size and Weight 8 X 4 X 10", 3 lbs. Warranty - Limited Lifetime.