Bøger af Helen Pilcher

An accessible and thought-provoking introduction to timespans in the natural world, featuring more than 80 beautifully designed diagrams. Which organisms live the longest? How does the natural world recover from fire? How long do eggs take to hatch? What are the world's fastest and slowest growing plants? Which species invest the most in parental care? How Nature Keeps Time discovers the natural world's most important and intriguing patterns of time. Beautifully designed with stunning colour photography and more than 80 reader-friendly charts and diagrams, this witty book examines a broad range of species from across the world and throughout time. From the lifecycle of immortal jellyfish and identifying the perfect amount of time for a 'good sleep' to mass extinction and the destruction of the coral reef, Helen Pilcher tackles highly relevant and fascinating topics in this deeply entertaining read.

"From testing garden soil to making a homemade battery out of a potato, this book reveals the hidden science at work in the garden and around the house. The book is divided into four sections, each focusing on one area: biology, soil science, botany, and "kitchen sink" chemistry. Each experiment is straightforward and easy, involving no more than common household items. Learn how to germinate seeds with little more than envelopes and used egg cartons or amaze friends with the art of optical illusion. While learning how to create a homemade ant farm or making a pressed herbarium specimen, kids get grounded in the basic principles of science. The experiments have been designed as participatory learning activities that bring kids and family members together with the aim of developing young people's learning skills, interest in science, and the world around them."--Provided by publisher.

A look at small, seldom-noticed and apparently insignificant objects and inventions that have changed the world.

In this post-natural history guide, Helen Pilcher invites us to meet key species that have been sculpted by humanity.

A beautifully designed activity book filled with fascinating garden experimentsWith 80 experiments for the whole family to discover and enjoy,The Pocket Book of Garden Experiments contains easy-to-follow instructions for activities that will stretch your imagination and bring out your inner scientist.x Make an ecosystem in a jarx Find out why leaves change colourx Turn potatoes into slimex Calculate the heights of treesx Make a sound map of your gardenEach experiment takes inspiration from the natural world and the fascinating things that live in it.