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This title explores the complex connections in food chains and webs. Starting with producers and how photosynthesis captures energy from sunlight, the book works its way up through the chain, looking at consumers, predators, and decomposers. It also examines populations and communities, as well as what can go wrong if the food chain is broken.
Widely considered the leading book involving nutrition and feeding infants and children, this revised edition offers practical advice that takes into account the most recent research into such topics as: emotional, cultural, and genetic aspects of eating; proper diet during pregnancy; breast-feeding versus; bottle-feeding; introducing solid food to an infant's diet; feeding the preschooler; and avoiding mealtime battles. An appendix looks at a wide range of disorders including allergies, asthma, and hyperactivity, and how to teach a child who is reluctant to eat. The author also discusses the benefits and drawbacks of giving young children vitamins.
The cichlid fishes are an important group, being widely used in scientific research and as popular fish with aquarists. This group contains mainly small species which adjust quickly to captivity, exhibiting a readiness to breed and long periods of parental care for the young. This books comprehensive volume describes the current knowledge on the behaviour and ecology of the cichlid fishes.
Bring your science lessons to life with Scientifica. Providing just the right proportion of 'reading' versus 'doing', these engaging resources are differentiated to support and challenge pupils of varying abilities.
Every teacher, however well trained in science, will have areas of uncertain understanding. This book is a prime resource for primary teachers of readable, accurate and relevant explanations of scientific phenomena, supported by impressively clear drawings. It has been revised to include recent scientific developments such as DNA and environmental issues, and continues to give sound advice about likely misconceptions whilst maintaining its focus on explaining the science for teachers' - "Wynne Harlen, Professor in Education, University of Bristol """In a thoroughly revised and updated version, this standard reference book provides the background knowledge teachers need in order to plan effective programmes of work and answer children's questions with confidence. It is based on the belief that children learn most effectively when they can interpret their own experiences and investigation in scientific terms. The content of this book has been guided, but not limited, by the National Curriculum (NC) and the detailed requirements for teacher knowledge of the Teacher Training Agency (TTA). It sets out the facts, develops the concepts and explains the theories which pupils at primary level, including older and very able children, are likely to need in order to understand the observations and investigations they undertake. For this edition some new topics have been added, in response not only to TTA requirements and ongoing developments in science and technology, but also to the queries of children and teachers about observations they find relevant and puzzling. Throughout, topics are developed in ways which teachers and children can relate to their own experience. The textdoes not assume specialised scientific knowledge and, wherever possible, explanations and the development of ideas begin and remain firmly in contact with everyday events and observations. What is assumed is that readers will be wi