In “Seashore Wonders”, host Nicole Busby guides children as they learn how to read a tide table, and what causes the ocean to rise and fall. Viewers discover that the beach is comprised of four different intertidal regions and that a rich diversity of creatures inhabit each region. Periwinkles, limpets, sea stars and a variety of other animals and plants are identified.
Countries: CA
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The Deathbed
The deathbed scene is changing along with the legal and ethical issues surrounding it. This program addresses these issues and the role and meaning of traditional and personal rituals.
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Matter and Energy on the Move
Examines the movement of matter into and out of living cells across a semipermeable membrane and the role energy plays. The concepts of diffusion, osmosis, concentration gradients, and active and passive transport are explained and demonstrated.
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A Close-up View of Growth
Explains how to prepare a wet mount slide, use stains to examine the features of plant and animal cells, and calculate magnification, field to view and scale. Examines the growth, division, and differentiation of cells.
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The Kingdoms
Explains how the electron microscope has enabled scientists to probe the most elemental boundaries of life. Investigates the nature, transmission and harmful effects of viruses and notes the similarities and differences between prokaryotic and eukaryotic cells.
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Systems, Energy and Matter
Examines how living organisms, as open systems, exchange energy and matter with their environment. Explains the absorption, transportation and waste removal of water, minerals and gases in plants and animals.
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Maintaining Equilibrium
Explores the concepts of equilibrium and homeostasis in living systems. Examines diffusion, osmosis and tonicity at the cellular level. Illustrates the exchange of energy and matter in open systems.
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Conservation Laws
Introduces the Conservation Laws. Examples of van Helmont, Lavoisier and Joule explain how scientific method led researchers to propose a hypothesis, design an experiment, record observations and draw conclusions and eventually become a scientific law.
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Energy Transformations
The inner workings of a grain elevator demonstrate how the kinetic energy of a conveyor is used to increase the gravitational potential energy in stored grain. This is later converted back to kinetic energy when the grain is loaded onto rail cars.
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Efficiency of Energy Conversions
Investigates mechanical and biological systems to determine and compare efficiencies of energy conversions. Examines real and toy cars, types of electrical power generation, and the packaging of various foods to show how to use efficiency calculations.