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Showing 21 - 40 of 2323 items
By Jean Le Loeuff, Christel Souillat. 1997
Repérer un terrain fossilifère ? Distinguer du premier coup d'œil un théropode d'un marginocéphale ? Facile... Os, œufs, becs, cornes…
et petits bobos, vous n'ignorerez presque plus rien des mastodontes de l'ère secondaire. Pour les lecteurs d’école secondaire. 1997.By Pascal Picq. 2009
L'évolution ne se contente pas de raconter l'histoire de la vie avec ses fossiles emblématiques devenus héros de cinéma comme…
les dinosaures et les mammouths. Ce récit pourtant n'est pas un conte ou un mythe, mais une chronique fascinante construite par la science. De grands scientifiques (Lamarck, Darwin, Gould, etc.) nous aideront à comprendre pourquoi il y a toujours des espèces, qui apparaissent, d'autres qui se diversifient et d'autres encore qui s'éteignent. Et nous nous demanderons aussi pourquoi la théorie de l'évolution se heurte encore à tant de résistances. Sans l'évolution, nous ne serions pas là : mais si nous ne la comprenons pas, c'est la vie des générations futures qui sera mise en danger. Pascal Picq, paléoanthropologue au Collège de France, étudie les origines et l'évolution de l'homme et des grands singes. Fervent défenseur des théories de l'évolution, sa démarche associe volontiers art et science.By Jill Frankel Hauser. 1999
By Susan Casey. 2005
From finding an idea and creating a working model to patenting, manufacturing, and selling your invention, here is expert guidance…
on all the different stages of inventing. You'll see how to keep an inventor's log, present your ideas, and work as part of a team or with a mentor. You'll meet inspiring kids just like you who designed their own award-winning inventions. And you'll see how to prepare for the various invention contests held each year, including international competitions and science fairs. Grades 5-8. 2005.By Patricia Lauber. 1982
By Dennis B Fradin. 1999
Historical survey of theories about life on Mars, from ancient civilizations' perceptions to twentieth-century space exploration. Discusses evidence of canals…
and Percival Lowell's studies of them, discoveries made by the Mariner and Viking missions, and possibilities of future colonization by earthlings. Grades 5-8. 1999.By Jill Rubalcaba, Eric H Cline, Sarah S Brannen. 2011
After retelling a legend of the Trojan War based on Homer's Iliad the authors profile the archaeologists who have sought…
to excavate the remains of the city of Troy, beginning with amateur Heinrich Schliemann. For grades 5-8 and older readers. Some descriptions of violence. c2011.Despite it's characterization in the rest of the world as a land of bush and blizzards, Canada is a country…
of geographical and climatic variations. It experiences just about every type of extreme weather possible - tornadoes, droughts, dust storms, ice storms, hail storms, hurricanes, floods - in addition to lots of snowstorms. The weather is rarely boring and there are times when it has been so extreme, it has surprised everyone. Grades 4-7. 2005.By Brian McFarlane. 1994
By Isaac Asimov. 1986
By Shelley Tanaka, Philip J Currie, Mark Norell, Paul C Sereno. 1998
Describes paleontologists' discovery of dinosaur fossils at major sites in Mongolia, Canada, and Argentina. Presents information on the Oviraptor, Centrosaurus,…
and Herrerasaurus, among others. Discusses scientific evidence linking birds and carnivorous dinosaurs. Grades 4-7. 1998.By James Jespersen, Jane Fitz-Randolph. 1987
By Sylvia Branzei. 1995
Sometimes it's stinky, sometimes it's crusty, and sometimes it's slimy, but hey, it's your body! Find out about slimy, mushy,…
oozy stuff like saliva, crusty, scaly things like eye gunk, and stinky, smelly stuff like smelly feet. Includes fun facts and activities. Grades 4-7. 1995.By Michael Collins. 1976
By Christopher Sloan. 2000
Discusses the theory that birds are modern evolutionary descendants of dinosaurs, comparing their skeletons and bone structure. Describes the 1996…
discovery in China of theropod fossils showing feathers. Explains the functions of various feathers and possible evolution of arms to wings. For grades 4-7. 2000.By Alvin Silverstein, Virginia B Silverstein, Laura Silverstein Nunn. 1999
Discusses the concept of time and its relationship to biological cycles, including phases of the moon, internal clocks of plants…
and animals, seasonal rhythms, and the aging process. Includes a glossary and a list of Internet resources. Grades 5-8. c1999.By Nancy Harris. 2004
The issue of cloning gets in-depth treatment, with essays on early efforts at cloning and the creation and significance of…
Dolly the sheep. Current controversies are discussed, including the overriding question of whether humans should be cloned, to the pros and cons of regulating cloning technologies, therapeutic and reproductive cloning, and whether animals should be used in research. The future of cloning is also discussed. Some descriptions of sex and violence. For senior high readers. 2004.By Gloria Skurzynski. 2004
Discusses the possibilities of identifying and communicating with another life-form in our vast universe. Describes the interconnectedness of research in…
many scientific disciplines to investigate hospitable planets. Includes profiles of scientists dedicated to seeking extraterrestrial intelligence. Grades 5-8. 2004.By Monique Keiran. 1999
Some 75 million years ago, one dinosaur ended its life. The dinosaur was an Albertosaurus -- distant cousin to the…
ferocious, meat-eating predator Tyrannosaurus Rex. But its death was also a beginning -- the start of its transformation into a fossil, which lay undiscovered for millennia until the forces of erosion brought the young dinosaur, once again, to light. Grades 4-7. 1999.By Samantha Beres. 1998
Beres presents 101 facts about science on topics such as the human body, botany, chemistry, physics, evolution, zoology, and technology.…
Includes brief biographies, fun facts, and hands-on experiments, some of which need adult supervision. Grades 4-7. 1998.