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Adventures in paleontology: 36 classroom fossil activities by Thor Hansen, Irwin Slesnick

By Thor Hansen, Irwin Slesnick

Thousands of years after vanishing from the Earth, dinosaurs nonetheless have the facility to stir students’ interest. Deepen that curiosity with Adventures in Paleontology, a sequence of full of life hands-on actions in particular for heart schoolers. This fantastically illustrated complete colour publication positive factors 36 actions that open scholars as much as a number of foundational sciences, together with biology, geology, chemistry, physics, and astronomy. for instance: • “How Do Fossils Form?” discusses how organisms turn into fossils and illustrates the concept that with actions that simulate fossil-making tactics. • “What are you able to research From Fossils?” explores what fossils train approximately historical organisms. • “Mass Extinction and Meteor Collisions With Earth” discusses lately came upon hyperlinks among meteor and asteroid affects in the world and the loss of life of animals like dinosaurs. different chapters disguise find out how to inform the age of the Earth; how dinosaurs advanced; and variety, class, and taxonomy.! the ultimate chapters supply humanistic views on fossils in literature and paintings. As an eye-catching supplement to the textual content, vibrant complete colour illustrations exhibit not only skeletons and animal tracks but in addition what dinosaurs most likely gave the impression of of their ordinary settings. convenient line drawings consultant scholars via each one step of the actions.

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42) 5. 42). 6. 42). 7. , both males and females had large plates. A D V E N T U R E S I N PA L E O N T O L O G Y 45 C H A P T E R A C T I V I T Y 2 9 It is convenient to place these predictions and tests in a table: Hypothesis Prediction Test Defensive Armor Plates tough and cover vital areas No: plates weak and do not cover sides Defensive Spikes Plates strong and sharp No: plates weak and not sharp Defensive Display Plates make Stegosaurus look larger Yes Courtship Display Males have plates, females don’t No: both sexes have plates Thermoregulation Plates thin and porous with many blood vessel holes Yes Conclusion: The plates fail our tests for defensive armor, spikes, and courtship display.

Prediction: Stegosaurus plates will be tough and will cover the vital areas of the body. Hypothesis 2: Defensive spikes. Observations: Porcupine quills are sharp, stiff, barbed, and deter attackers by puncturing their skin. Prediction: Stegosaurus plates will be strong and pointed. Hypothesis 3: Defensive display. Observations: Animals have a variety of ways to make themselves look larger. They may raise their feathers or hair or puff up their bodies. The result is a much larger looking animal.

30). 30 and snails. They are very slow movers, so the prey must be equally slow in order to be run down. Once captured, Moon snail shell (left) and live moon snail (right) showing its “foot” and mantle. 31) in the shell of the prey. It drills this hole by secreting acid onto a spot on the shell and then filing away the loosened material with its radula. 32 Shells of two species of Muricidae, which drill small, vertically sided holes in the shells of their prey. 31 Incomplete (left) and complete (right) drill holes in shells created by moon snails.

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