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Designed to provide the ideal solution for teaching junior science, "New Star Science 4" books are aimed at the fourth primary school year. These teacher's notes provide a background to the unit as well as photocopiables and assessment material. The focus of this text is "friction".
Explores the force of friction through ten simple experiments using everyday objects.
A baseball player slides on the ground to tag a base. A toy car's wheels rub against the floor and slow the toy car down. Friction is at work all around you. But what exactly is friction? And how does it affect different objects? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series—part of the Lightning Bolt BooksTM collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt BooksTM bring nonfiction topics to life!
Providing a solution for teaching infant and junior science, "New Star Science" books are aimed at the primary school years 1-6. This user guide is aimed at the teachers and contains all the information necessary to work through the course and use the books in the classroom.
Providing a solution for teaching junior science, "New Star Science 4" books are aimed at the fourth primary school year. This "Pupil's Book" provides practical tasks and activities, with work throughout the topic and support for group activities. The topic covered is "friction".
Designed to provide the ideal solution for teaching junior science, "New Star Science 4" books are aimed at the fourth primary school year. These teacher's notes provide a background to the unit as well as photocopiables and assessment material. The focus of this text is "keeping warm".
Describes what friction is and gives some examples of how it causes moving things to stop.
It is my ambition in writing this book to bring tribology to the study of control of machines with friction. Tribology, from the greek for study of rubbing, is the discipline that concerns itself with friction, wear and lubrication. Tribology spans a great range of disciplines, from surface physics to lubrication chemistry and engineering, and comprises investigators in diverse specialities. The English language tribology literature now grows at a rate of some 700 articles per year. But for all of this activity, in the three years that I have been concerned with the control of machines with friction, I have but once met a fellow controls engineer who was aware that the field existed, this including many who were concerned with friction. In this vein I must confess that, before undertaking these investigations, I too was unaware that an active discipline of friction existed. The experience stands out as a mark of the specialization of our time. Within tribology, experimental and theoretical understanding of friction in lubricated machines is well developed. The controls engineer's interest is in dynamics, which is not the central interest of the tribologist. The tribologist is more often concerned with wear, with respect to which there has been enormous progress - witness the many mechanisms which we buy today that are lubricated once only, and that at the factory. Though a secondary interest, frictional dynamics are note forgotten by tribology.
Bestselling author Michael Shermer delves into the unknown, from heretical ideas about the boundaries of the universe to Star Trek's lessons about chance and time A scientist pretends to be a psychic for a day-and fools everyone. An athlete discovers that good-luck rituals and getting into "the zone" may, or may not, improve his performance. A historian decides to analyze the data to see who was truly responsible for the Bounty mutiny. A son explores the possiblities of alternative and experimental medicine for his cancer-ravaged mother. And a skeptic realizes that it is time to turn the skeptical lens onto science itself. In each of the fourteen essays in Science Friction, psychologist and science historian Michael Shermer explores the very personal barriers and biases that plague and propel science, especially when scientists push against the unknown. What do we know and what do we not know? How does science respond to controversy, attack, and uncertainty? When does theory become accepted fact? As always, Shermer delivers a thought-provoking, fascinating, and entertaining view of life in the scientific age.
When Cooper drags Kevin, Ben, and Gwen to the science fiction convention, no one is very excited. But all of that changes when one of the convention's props starts spewing out mini-aliens! Ben, Gwen, Cooper, and Kevin must save the conventioneers and stop the tiny pests. But will they be able to do so before they are overwhelmed by the mini-invaders? Sometimes real life really is stranger than fiction!