Discover how scientists are able to learn about the world around us by studying how light interacts with matter. Spectrophotometry gives students an understanding of the principles of spectral analysis and explains the relationship between absorbance and transmittance. Students then go inside the lab to put this information into action as they perform serial dilutions, develop a standard curve and determine the concentration of aspirin in two unknown solutions using a spectrophotometer. In the process, they use proper scientific procedures and come to understand that measurement errors may affect calculations. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.
Comparative Anatomy: Dissection uses systematics and anatomy to illustrate the similarities and differences of systems in different organisms. Students learn how advances in medicine have come from the careful study of organs and have an opportunity to discuss the ethical codes of scientists. Through a lab investigation, students become comfortable with the scientific tools and habits of mind used in the fields of gross anatomy and histology. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.
In Chromatography, viewers learn a valuable technique for the rapid separation of chemical mixtures. After the scientific principles of paper chromatography are conveyed through real-life demonstrations and clear graphics, students move into the lab to analyze a number of ink samples, calculating Rf values for the pigments found in each sample. Students investigate the experimental techniques used to determine if two samples are identical by creating a unique visual "fingerprint" of each tested substance. They also explore the factors affecting each separation and extend the investigation by choosing different solvents for the mobile phase. See how gas chromatography is used in arson investigations and how thin-layer chromatography can be utilized to confirm a document's authenticity. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.
In Chromatography, viewers learn a valuable technique for the rapid separation of chemical mixtures. After the scientific principles of paper chromatography are conveyed through real-life demonstrations and clear graphics, students move into the lab to analyze a number of ink samples, calculating Rf values for the pigments found in each sample. Students investigate the experimental techniques used to determine if two samples are identical by creating a unique visual "fingerprint" of each tested substance. They also explore the factors affecting each separation and extend the investigation by choosing different solvents for the mobile phase. See how gas chromatography is used in arson investigations and how thin-layer chromatography can be utilized to confirm a document's authenticity. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.
Sound, like light, travels in waves. Young students learn about the amazing journey of sound -- from the source that creates the sound to the mechanics of the ear that enable it to be heard. Children discover why sound needs a 'medium' to travel, why there is no sound in space and how certain animals are able to 'see' by using sound! A fun, hands-on activity and clearly illustrated diagrams help students learn these basic concepts. 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. Grades K-4. 23 minutes.
In All About Solids, Liquids and Gases, young students will be introduced to the three common forms of matter. They'll learn that all things are made up of tiny particles called atoms and that the movement of these particles determines the form that matter takes. In solids, the particles are packed tightly together and move very little. The particles in liquids are more spread out and move faster. In a gas, the particles are spread even farther apart and move even faster. Kids will also discover how matter can change from one form into another when energy is added or taken away. The terms melting point, freezing point and boiling point are introduced and clearly explained. Includes many real-life examples and colorful graphics, along with a fun, hands-on activity that demonstrates how different liquids evaporate at different rates. This program is based on the concepts outlined in the National Science Education Standards for Physical Science: properties of objects and materials, position and motion of objects and light, heat, electricity and magnetism. The 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. A Teacher's Guide is available online. 23 minutes. Grades K to 4.
Most children know how to describe an object -- by color, size and shape. Here they'll learn that all objects are made of matter and that all matter can be described with basic scientific properties -- mass, weight, volume and density. Each of these properties is described using fun, real-life examples. With clear illustrations and hands-on activities, students will gain a basic understanding of the properties of matter. 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.
Walking on a balance beam or riding a bike both require motion and balance. This program will reveal how unbalanced forces create motion, while balanced forces keep things still. Students also learn how concepts like velocity, acceleration and momentum fit into this puzzle. A unique hands-on activity combined with vivid imagery and graphics will clearly illustrate these concepts to students. 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.
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.
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.
In Skeletal & Muscular Systems, students learn that bones and muscles work together to protect our bodies and enable them to move. They'll discover that, in addition to providing support for our bodies and protecting vital organs, bones are where blood is manufactured! Viewers also learn that bones are classified by shape -- long, short, flat and irregular -- and that there are three types of muscles -- skeletal, smooth and cardiac. Vivid examples and colorful graphics illustrate how joints work with the help of connective tissues like cartilage, ligaments and tendons. An orthopedic surgeon explains how bones heal, and a fun, hands-on experiment shows how calcium is essential for strong, healthy bones. 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 correlates to the National Science Education Standards for Life Science: structure & function in living systems, reproduction & heredity, regulation & behavior, populations & ecosystems, and diversity & adaptations of organisms. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Body systems interact to make the human body the most complex machine ever built. With all the amazing, intricate facets of the body, how do all of the systems work together? Students will learn about how the nervous, reproductive, digestive, excretory, circulatory, respiratory, muscular, immune and skeletal systems work together to allow humans to successfully perform all of their daily activities. Vivid graphics and images illustrate the interrelationship of the body systems. 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 correlates to the National Science Education Standards for Life Science: structure & function in living systems, reproduction & heredity, regulation & behavior, populations & ecosystems, and diversity & adaptations of organisms. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
In Health & Nutrition, students learn that what we eat is critical to our overall health, from our cells to our senses to how we feel. Cells need nutrients to function properly, and we get them from the foods we eat. Viewers will be treated to a complete rundown of essential nutrients, including carbohydrates, fats, proteins, vitamins, minerals and water. The concept of a balanced diet is stressed, along with a full presentation of the Food Guide Pyramid and a segment on the importance of exercise for maintaining good health. Includes an interview with a nutrition expert and a fun hands-on activity in which kids actually measure and compare the amount of energy stored in different foods. 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.
In Circulatory & Respiratory Systems, kids will discover how these two vital systems work together to help keep us alive through a process called cellular respiration. A close-up look at the components of our blood -- plasma, red blood cells, white blood cells and platelets -- reveals just how critical blood is to our survival. Pumped by the heart through a vast network of vessels, our blood is the ultimate pick-up and delivery system, providing vital nutrients, carrying away harmful waste and fighting against disease and infection. A visit to a hospital blood laboratory is included, as well as an interview with a doctor and a fun, hands-on activity in which students can test their lung capacity. 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.
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.
Most kids understand that many plants sprout from seeds, grow flowers and make new seeds, and then the whole process starts all over again. What they may not realize is that this is an example of a life cycle, and it applies to people, too! In All About the Human Life Cycle, students will discover that there are stages that all of us pass through as we grow: birth, infancy, childhood, adolescence and adulthood. Each of these is described by using real-life examples against the backdrop of a family picnic. The concept of a cycle is stressed, making it clear that the cycle of life repeats again and again with each new baby that is born. A fun activity is included in which kids witness the stages of a life cycle up close through observing the metamorphosis of a caterpillar into a butterfly. Part of the multivolume Human Body for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title is based on the concepts outlined in the National Science Education Standards for Life Science: characteristics of organisms, life cycles of organisms and organisms & environments. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
Your brain controls everything you do -- from breathing, to feeling, to learning and playing. All About the Brain introduces kids to the human nervous system, which is comprised of the brain, the spinal cord and a vast network of nerves. Discover the basic units of the nervous system, and explore the functions of the three main parts of the brain: the cerebrum, the cerebellum and the brain stem. Colorful graphics and exciting, real-life examples help young students understand how messages constantly travel back and forth between the brain and all of the other parts of the body. A fun demonstration shows how the brain is protected not only by the skull, but by a layer of fluid as well. Reflexes are discussed, and an easy-to-replicate experiment is included in which kids actually measure their own reaction time. Part of the multivolume Human Body for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title is based on the concepts outlined in the National Science Education Standards for Life Science: characteristics of organisms, life cycles of organisms and organisms & environments. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
A car won't run without fuel. And just like a car, the human body can't be expected to work without the food and nutrients it uses as fuel. Good nutrition and exercise are always important! Students learn about the food pyramid, as well as the types and amounts of foods needed by the body each day to stay healthy. Children find out how calories burn and how exercise keeps the body in shape! Students also take a look at how an unbalanced diet, overeating and lack of exercise can wear the body down and affect well-being. A hands-on activity is included. Part of the multivolume Human Body for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title is based on the concepts outlined in the National Science Education Standards for Life Science: characteristics of organisms, life cycles of organisms and organisms and environments. A Teacher's Guide is included and available online. Grades K-4. 23 minutes.
The rocks and soil that make up Earth's surface are constantly being affected by a variety of forces, ranging from heat and frost to water and wind. In Weathering and Erosion, students will discover the natural forces that cause weathering, erosion and deposition, and see the many effects that these processes have on Earth's surface. Students will examine natural structures around the world and see how weathering and erosion have affected them, while discovering ways in which people have become better prepared to battle these forces through conservation. In addition, a fun, hands-on experiment demonstrates how running water erodes different types of soil. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Water is vital to all life on Earth and covers nearly three-fourths of our planet's surface. Where does it come from? Will we use it up eventually? In The Water Cycle, students learn that Earth has the same water supply today as it did millions of years ago. Examine the amazing process by which water is continually recycled and transported from place to place through evaporation, condensation and precipitation. Also find out how energy from the sun drives the water cycle and how the atmosphere prevents water from slipping away from Earth. A fun, hands-on investigation demonstrates how an artesian well works, while a visit to a desalination plant showcases how salt water is purified. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Volcanoes are one of Earth's most fascinating and destructive forces. In Volcanoes, students will get an up-close look at these fiery formations, discovering how they form and what causes them to erupt. Learn the difference between magma and lava, and discover the characteristics that enable volcanologists to classify a volcano as cinder cone, shield or composite. Examine the anatomy of an active volcano, and learn about historical eruptions that have left a mark on our planet. A fun, hands-on investigation demonstrates how a tilt meter is used to predict when a volcano might erupt by charting changes in the slope of the surrounding ground, while a visit to Horseshoe Lake at Mammoth Mountain, California, highlights an invisible sign of volcanic activity -- poisonous carbon dioxide fumes. Part of the Earth Science in Action DVD Series. A teacher's guide is available online. 23 minutes. Grades 5 to 8.
From the highest mountains to the deepest chasms, Earth's terrain is comprised of varying levels and unique features. In Topography, students will learn how the features of Earth's surface are arranged while exploring the art and science of re-creating these terrains on maps. See how forces like earthquakes, volcanoes, water and wind have changed Earth's surface over countless centuries, and learn why studying these changes is important to learning about our planet's past and future. See how cartographers map the floor of the oceans, while an informative demonstration shows students how they can make a simple topographic map of their own. 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 study of rocks is an essential part of studying the age and evolution of Earth. In Rocks, students will examine the characteristics of each of the major types of rocks: igneous, sedimentary and metamorphic. From stalactites and stalagmites to intrusive and extrusive rocks, students will examine how rocks are formed in this exciting program. A visit to Mammoth Mountain in California showcases the interesting rock formation known as the Obsidian Dome, while a fun, hands-on demonstration illustrates how different sized-particles of sediment settle out of water at different rates. 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.
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.
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.