The geological history of Earth covers billions of years! In Geological History, students will examine a time line of Earth, tracking its violent beginnings and ever-changing face. Discover the four major segments of geologic time (the Precambrian and the Paleozoic, Mesozoic and Cenozoic eras), and learn about the plant and animal life that developed during each era. A journey under the sea shows how geologists study the layers of rock that lie deep under the ocean floor, while a fun, hands-on investigation demonstrates how geologists can "read" unusual formations in rock layers. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
The geological history of Earth covers billions of years! In Geological History, students will examine a time line of Earth, tracking its violent beginnings and ever-changing face. Discover the four major segments of geologic time (the Precambrian and the Paleozoic, Mesozoic and Cenozoic eras), and learn about the plant and animal life that developed during each era. A journey under the sea shows how geologists study the layers of rock that lie deep under the ocean floor, while a fun, hands-on investigation demonstrates how geologists can "read" unusual formations in rock layers. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Series of eight plastic raised relief models. Relates typical surface formations to subsurface structures that are shown as graphic cross sections on each model. Helps students to better understand the development of the landscape and the factor and force influencing the development. Geologic features are numbered and keyed to a comprehensive study guide. When combined, the 8 individual models form a continuous 8-foot long graphic landscape and landform reference. Each model is 12" x 15", printed in full color on durable plastic, thermo-formed and reinforced with rigid foam.
• 2019 Toy of the Year award finalist
• Telescope features Fact Mode and Quiz Mode
• Includes 24 fascinating images of planets, stars, and space
• Each image includes 5 facts and 5 questions
• 60 Minutes of audio in English, Spanish, French, and German
• 16-Page multilingual guide
• Includes tripod with soft rubber feet (some assembly required)
• Requires 3 AAA batteries (not included)
Explore the solar system and learn from 240 fun facts and questions about outer space! This updated version of our best selling GeoSafari Talking Telescope™ is the ultimate science show-and-tell experience. Introduces concepts of outer space and space objects. Encourages role playing and imaginative play. Practices learning through listening. Telescope features Fact Mode and Quiz Mode. Includes 24 fascinating images of planets, stars, and space. Each image includes 5 facts and 5 questions. 60 Minutes of audio in English, Spanish, French, and German. 16-Page multilingual guide. Includes tripod with soft rubber feet (some assembly required). Requires 3 AAA batteries (not included).
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
* Product color may vary
See laborers carrying, soldiers guarding. Includes one year supply of ant food, liquid feeder, farm handbook, California sand, and coupon for ordering live ants. 10" x 15".
• Collapsible and reusable 18-inch tall Deluxe Habitat
• Pipette for butterfly feeding
• Extensive Caterpillars to Butterflies Instruction Guide
• A voucher to redeem 5 caterpillars online at InsectLore.com when you are ready to begin your project.
Please note that an additional $7.95 fee is required when you redeem your certificate.
Enjoy this giant–sized version of Insect Lore’s popular Butterfly Garden® With Voucher. Children and adults alike will be transfixed by the transformation of 5 caterpillars into beautiful Painted Lady Butterflies! Watch the amazing changes for approximately three weeks, then release your adult butterflies into the wild! This kit also includes Painted Lady Butterfly Life Cycle Stages - the perfect educational complement to your butterfly-raising project.
A great giant model of the ear which shows all major structures related to hearing and balance. Dissectible into 3 parts. Enlarged 4 times. 14" x 7" x 8 1/2".
A great giant model of the ear which shows all major structures related to hearing and balance. Dissectible into 3 parts. Enlarged 4 times. 14" x 7" x 8 1/2".
Without sacrificing size or key detail this three-part replica exposes the entire length of the ear canal and Eustachian tube so that the sound waves entering the ear can be easily traced and to demonstrate how air pressure on both sides of the eardrum is equalized. The hammer, anvil, transparent ear drum, and the labyrinth all lift out for hands-on study. 18 hand-numbered anatomical features are explained in-depth in the accompanying study guide.
Six times life-size with five detachable parts including the upper hemisphere, the iris/cornea unit, the Lucite Lens that magnifies and inverts images, the transparent vitreous body, and the retina. The eyeball disassembles and reassembles with ease, so students can effectively learn through hands-on activity. A 2-page study guide highlighting its 19 principal features is included. Overall dimensions: 6x6x6 inches (15x15x15 cm) overall.
Includes:
• Two coils mounted in plastic saddle blocks that stand vertically
• Five soft iron cores (round, square, double U, and half-round [2])
• Stiff card and supply of iron filings in reusable vial
• Four alligator clip leads
You will need 6 V battery or power supply exceeding 1 amp DC; galvanometer
Use the materials in this complete kit to experiment with magnetic induction in a coil; primary/secondary coils; magnetic lines of force and electromagnetism. Includes: two coils mounted in plastic saddle blocks that stand vertically; five soft iron cores (round, square, double U, and half-round [2]); stiff card and supply of iron filings in reusable vial; four alligator clip leads. You will need 6 V battery or power supply exceeding 1 amp DC; galvanometer.
Heavy duty glass bell jar, ideal for studying the properties of matter under a vacuum or for isolating experiments from outside interference. The wall thickness is approximately 6mm.The dome's measurements are taken from the inside. Fixed Knob.
Heavy duty glass bell jar, ideal for studying the properties of matter under a vacuum or for isolating experiments from outside interference. The wall thickness is approximately 6mm.The dome's measurements are taken from the inside. Fixed Knob.
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.
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: 0.10ml 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.
Maximum clarity, unsurpassed quality and corrosion resistant. Thickness No. 0. There are approx 180 18mm x 18mm coverslips per ounce.
Maximum clarity, unsurpassed quality and corrosion resistant. Thickness No. 0. There are approx 180 18mm x 18mm coverslips per ounce.
Maximum clarity, unsurpassed quality and corrosion resistant. Thickness No. 0. There are approx 125 22mm x 22mm coverslips per ounce.
Maximum clarity, unsurpassed quality and corrosion resistant. Thickness No. 0. There are approx 125 22mm x 22mm coverslips per ounce.
Our Glass Dropping Pipettes consist of a glass tube attached to a 5ml bulb. Sold in packs of 12. Bulb color may vary.
A convenient classroom set of 5 borosilicate glass Erlenmeyer Flasks. Sets consist of one each of 50 ml, 125 ml, 250 ml, 500 ml, and 1000 ml Flasks. The shipping weight is 2.80 lbs.; the dimensions are 10.5" x 9.25" x 9.75".
Heat resistant glass stirring rods with rounded ends. Pack of 12.
5mm, 8 inch long heat resistant stirring rod made of soft flint glass. They are essential for mixing and stirring chemicals and liquids. Both ends of each rod are fire-polished and rounded, so they don't hurt hands and are easy to operate. Pack of 12.
Griffin type. Made of Zinc alloy. Die cast. Nickel plated. Cuts tubing up to 38mm (1 1/2") diameter. Spring loaded to stay open.
Quality glassware assortment for use in general science, or chemistry laboratory. Kit includes following items: two 100ml glass beakers, one 250 ml glass beaker, 1 400 ml glass beaker, two 4 oz. bottles w/ screw caps, two 50 ml Mohr burettes, 1 porcelain crucible, 1 porcelain crucible cover, 1 pipette eye dropper, 12 300ml barnes dropping bottles, 1 porcelain evaporation dish, one 75mm short stem funnel, one 75 mm watch glass, 1 porcelain mortar and pestle, one 10 ml glass cylinder, one 25 ml glass cylinder, one 50 ml glass cylinder, one 100 ml glass cylinder, six 13x100 test tubes, six 18x150 test tubes, six 25x200 test tubes, 4 glass capillary tubing, one 250 ml Erlenmeyer flask, one 8" glass rod and two 100 mm petri dishes. Designed for use by 2-4 students. Shipped in a reusable storage box. 57 pieces total.
Quality glassware assortment for use in general science, or chemistry laboratory. Kit includes following items: two 100ml glass beakers, one 250 ml glass beaker, 1 400 ml glass beaker, two 4 oz. bottles w/ screw caps, two 50 ml Mohr burettes, 1 porcelain crucible, 1 porcelain crucible cover, 1 pipette eye dropper, 12 300ml barnes dropping bottles, 1 porcelain evaporation dish, one 75mm short stem funnel, one 75 mm watch glass, 1 porcelain mortar and pestle, one 10 ml glass cylinder, one 25 ml glass cylinder, one 50 ml glass cylinder, one 100 ml glass cylinder, six 13x100 test tubes, six 18x150 test tubes, six 25x200 test tubes, 4 glass capillary tubing, one 250 ml Erlenmeyer flask, one 8" glass rod and two 100 mm petri dishes. Designed for use by 2-4 students. Shipped in a reusable storage box. 57 pieces total.
Also called glycerin or glycerine, Glycerol is both a colorless and odorless liquid, that is fairly viscous. It is a simple polyol compound, with a triglyceride backbone and 3 hydroxyl groups.
Features a metal case with front and rear glass windows for preventing air currents from affecting the deflection of the leaves. Leaves are gold and aluminum. Leaf support rod is held in place by an insulating plastic sleeve. Graduated scale is provided for measuring the deflection from 0 to 90 degrees. Includes instructions. Dimensions: 6"x4"x 8".
Features a metal case with front and rear glass windows for preventing air currents from affecting the deflection of the leaves. Leaves are gold and aluminum. Leaf support rod is held in place by an insulating plastic sleeve. Graduated scale is provided for measuring the deflection from 0 to 90 degrees. Includes instructions. Dimensions: 6"x4"x 8".
Discover the Red-bellied Turtle, which is nearly extinct. Uncover a Garter Snake in your backyard. Locate an Alligator Lizard--or a Legless one. Identifying reptiles is fascinating and fun with this classic Golden Field Guide. Abundant illustrations and the Key Characteristic system, preferred by professionals, make this single-volume reference an outstanding choice for nature projects, collectors of all ages, and scientific study.
• All of North America in one volume
• 278 species and 500 subspecies in 22 families...plus 18 exotics
• Illustrations include juveniles and adults, body forms, undersides, scales, and more!
• Text, range maps, and illustrations seen together at a glance
• Common and scientific names
• Convenient measuring rules
• Plus first aid information for snakebites.