Acme Thunderer Whistle is compressed, molded plastic for great durability.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
25 mm diameter x 25 mm height.
25 mm diameter x 25 mm height.
Capacity: 2610 Grams Sensitivity: 0.1 Grams Calibrations: Front Beam - 10g x 0.1g, Center Beam - 500g x 100g, Rear Beam - 100g x 10g Adam's Triple Beam is today's best value for teaching mass measurement concepts from a brand scientists worldwide have trusted for over thirty years. It offers the functions and durability you need in a generous 2610g capacity plus an array of special classroom features that you will appreciate. With a larger overall body than other triple beam balances, it's the sturdiest choice for the classroom. Quality construction with strong metal housing and a stainless steel pan. Innovative built-in tripod legs allow you to do density demonstrations wherever you want (without the inconvenience of having to clamp onto a table.)
Capacity: 2610 Grams. Sensitivity: 0.1 Grams. Calibrations: Front Beam - 10g x 0.1g, Center Beam - 500g x 100g, Rear Beam - 100g x 10g. Created to withstand daily student use, Adam Equipment's patented TBB triple beam mechanical balance offers a superb value for teaching mass measurement concepts. With rugged construction and security slot to prevent theft, the durable TBB is ideal for classroom environments. Sturdy metal housing and a grade 304 stainless steel pan help the balance withstand daily student use. Other features include tripod legs for density measurement, weigh-below hook, magnetic damping for faster stability, notched and tiered graduated beams with center reading, and holders for storing extra weights.
Capacity: 2610 Grams Sensitivity: 0.1 Grams Calibrations: Front Beam - 10g x 0.1g, Center Beam - 500g x 100g, Rear Beam - 100g x 10g Adam's Triple Beam is today's best value for teaching mass measurement concepts from a brand scientists worldwide have trusted for over thirty years. It offers the functions and durability you need in a generous 2610g capacity plus an array of special classroom features that you will appreciate. With a larger overall body than other triple beam balances, it's the sturdiest choice for the classroom. Quality construction with strong metal housing and a stainless steel pan. Innovative built-in tripod legs allow you to do density demonstrations wherever you want (without the inconvenience of having to clamp onto a table.)
Set of 10 additional student charts and mineral samples for use with the What Mineral Is It? classroom project (Item # 12044).
For controlling flow through flexible tubing. Nickel-plated brass. Jaw opening 1/2" to 3/4".
For controlling flow through flexible tubing. Nickel-plated brass. Jaw opening 1/2" to 3/4".
Complete glassware kit compliments any classroom or chemistry lab. Heat resistant glass.
Includes:
4 beakers (50 ml, two-250 ml, 600 ml)
4 Erlenmeyer flasks (50 ml, two-250 ml, 500 ml)
6 dropping pipets
6 stirring rods
10 ml and 100 ml graduated cylinders
2 ml pipet
Twelve 16 x 150 mm test tubes
Heat-resistant glass funnel
1 burette w/ stopcock (25ml)
6" dropping pipet
6 Barnes bottles (1 1/2 oz)
3 Barnes droppers
2 Barnes bent droppers
2 French square bottles (8 oz)
2 dropping bottles with pipets
1 condenser with rubber conn.
1 boiling flask (100 ml)
1 mortar and pestle (80mm, 60ml)
1 volumetric pipet (5ml)
1 thistle tube (6 x 300 mm)
1 watch glass (4" dia.),
12 flint tubing (5mm, 12")
12 flint tubing (6mm, 12"), 12 flint tubing (7mm, 12")
1 filtering flask (125ml)
1 flask volumeter stopper (250ml)
1 round bottom boiling flask
1 drying tube one bulb
Includes: scalpel with replaceable blade, 4 1/2" scissors, 4 1/2" scissors fine point, 4 1/2" forceps, 4 1/2" fine point forceps, mall probe, straight teasing needle, curved teasing needle, dropping pipet, clear plastic ruler, soft vinyl case, 12 loop.
This kit can be highly motivational to students for regular class or independent study. Both teacher and student guides are professionally produced and include easy-to-follow directions. Illustrations identify skulls of common prey species and charts are provided for students to record the data collected. Students learn about energy transfer through food chains while observing skeletal features which identify prey animals consumed. Additional studies can be conducted to evaluate animal populations within the owl's habitat, make calculations to estimate the biomass of the prey animals, or investigate the skeletal anatomy from the taxonomic features of the prey animals. 15 student worksheets, and Teacher's guide. Grades 7 and up.
This kit can be highly motivational to students for regular class or independent study. Both teacher and student guides are professionally produced and include easy-to-follow directions. Illustrations identify skulls of common prey species and charts are provided for students to record the data collected. Students learn about energy transfer through food chains while observing skeletal features which identify prey animals consumed. Additional studies can be conducted to evaluate animal populations within the owl's habitat, make calculations to estimate the biomass of the prey animals, or investigate the skeletal anatomy from the taxonomic features of the prey animals. 15 student worksheets, and Teacher's guide. Grades 7 and up.
This kit covers all the basics of slidemaking along with the more involved process of staining specimens. Specimens, all stains, and necessary chemicals, mounting medium, slides, coverslips, labels, droppers, magnifier, concave slides, vials, forceps, spot plate, ruler, gloves, prepared slides and instruction booklet are included.
This kit covers all the basics of slidemaking along with the more involved process of staining specimens. Specimens, all stains, and necessary chemicals, mounting medium, slides, coverslips, labels, droppers, magnifier, concave slides, vials, forceps, spot plate, ruler, gloves, prepared slides and instruction booklet are included.
Non-nutrient agar powder is typically used in classrooms for microbiology experiments, such as studying slime molds, observing fungal growth, or culturing environmental samples. Since it lacks nutrients, it does not support the growth of most bacteria or fungi on its own, making it ideal for experiments where a nutrient source is added selectively to encourage the growth of specific organisms. It's often used to highlight the effects of environmental factors on microbial growth, demonstrate the role of external nutrient sources, or as a base for investigating other biological processes.
Learn concepts of air pollution and its harmful effects using one form of a common air pollutant, sulfur dioxide on experiments with plant life. This kit provides instruction, apparatus and materials to experiment with plant seedlings exposed to a sulfur dioxide atmosphere at a known concentration which produces an effect on plant life that can easily be observed within several days.
This parameter is important in determination of the corrosive properties of water, caused by carbonates, bicarbonates as well as dissolved salts. Testing alkalinity is important in the treatment of drinking water, waste water, swimming pools, heating and cooling systems, food and beverage systems, and soil and environmental testing, as well as in agriculture, farming and fish farming. Includes 110 tests.
Winter, spring, summer and fall. We know what happens in our own backyards at these times during the year, but it isn't the same everywhere in the world! When it's warm and sunny where you are, it might be very different in other places of the world. Why do the seasons change? And what causes different regions in the world to have different climates? These and other questions are answered in All About Climate & Seasons, where young students will learn about these yearly changes through engaging examples and explanations. A hands-on investigation shows the effects of direct sunlight on areas of the world, while Dr. Jon Nese, chief meteorologist at The Franklin Institute Science Museum in Philadelphia, demonstrates the concept behind the device known as an orrery. Part of the multivolume Weather for Children DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
Over the course of its 4.5 billion-year history, Earth has undergone a great number of changes -- from a red-hot ball of molten lava to a planet with an environment capable of sustaining life. In All About Earth's History, children will trace the evolution of Earth and the organisms that populate it. Young viewers will take a peek deep inside the Earth, examining its varied layers while discussing how scientists use fossils to help map out the complex time line of events that has changed Earth over millions of years. A visit to the Grand Canyon examines the rock layers of this famous land formation, revealing how the climate of the region has changed over time. A lively, hands-on activity demonstrates how scientists use core samples to study the Earth. Part of the Earth Science for Children DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
They shake the ground underfoot, causing tremors that, at their worst, can leave cracks in highways and topple buildings. But for the most part, earthquakes are constantly rumbling through the Earth with a force that's barely detectable. But why do they occur? In All About Earthquakes, children will examine the forces at work that cause earthquakes and discover the instruments that scientists use to predict and measure these earthly tremors. A visit to Mammoth Lakes in California showcases an advanced network of lasers that measures ground movement in the area, while a fun, hands-on activity demonstrates how architects test their designs by using a shaker table. Part of the Earth Science for Children DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
How different would life be without electricity? Creating and harnessing electricity has become one of the most important factors in the everyday lives of people. Children learn the basics of electrical current -- how it flows and how it can make a circuit -- and take a look at some of the ways it is created. Students will see fun, clear demonstrations to further illustrate these concepts. One of 11 volumes in the Physical Science For Children Video Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects and materials, position and motion of objects, and light, heat, electricity and magnetism. This program includes a Teacher's Guide. 23 minutes. Grades K to 4.
Up, up and away! A hot air balloon, an airplane and even the space shuttle all defy the force of gravity, but they all do it in different ways. Children learn about the basic concepts that make flight possible. With clear demonstrations and a hands-on project, students will be able to understand more easily the basic concepts behind various types of flight. One of 11 volumes in the Physical Science for Children Video Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects and materials, position and motion of objects, and light, heat, electricity and magnetism. This program includes a Teacher's Guide. 23 minutes. Grades K to 4.
When we try to move ourselves or other objects, a force is being created -- a push or a pull. Students learn about how forces are involved in everything we do and about the natural force that affects us every minute of every day. How does it help or hinder us in our everyday lives? With clear demonstrations and a fun, hands-on activity, these concepts are more easily understood. This program is one of 11 volumes in the Physical Science for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects and materials, position and motion of objects, and light, heat, electricity and magnetism. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
Earth is filled with a wonderful variety of land formations that range from towering mountains to sandy deserts and deep canyons. In All About Land Formations, children will examine these and other earthly structures while learning about the forces that created them. A fun, hands-on investigation demonstrates why moving water is a powerful force that can change Earth's surface in a hurry, while a visit to the Kenai Fjords National Park in Alaska showcases land formations that were created by giant glaciers over millions of years. Part of the Earth Science for Children DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.