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Tuesday 3 December 2013

Tuesday 3 December 2013. Retrieve your Science Tiger Notebook On your STP sheet answer the following in complete sentences— What are the traits of a segmented worm? Why are Photosynthesis and Respiration opposite functions? Why does a dog pant? Class work Review test

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Tuesday 3 December 2013

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  1. Tuesday 3 December 2013 • Retrieve your Science Tiger Notebook • On your STP sheet answer the following in complete sentences— • What are the traits of a segmented worm? • Why are Photosynthesis and Respiration opposite functions? • Why does a dog pant? Class work • Review test • Animal Structures for Survival Notes

  2. Vertebrates CharacteristicsReview….. All Vertebrates: • They have backbones, an internal skeleton (endoskeleton), and muscles. • They have blood that circulates through blood vessels and lungs (or gills) for breathing. • They have a protective skin covering. • Most have legs, wings, or fins for movement. • They have a nervous system with a brain that processes information from their environment through sensory organs.

  3. Adaptation: Any structure or behavior that help an animal to survive in its environment.

  4. Structures for Defense • Allow an animal to hide from a predator or warn a predator (for example skin color (camouflage) or patterns (mimicry). • Allow an animal to make a direct attack painful (for example horns, claws, quills, stingers, or venom). • Allow an animal to change its size prevent a direct attack (for example shells, emitting smells or body fluids (ink), or mechanisms) . • Allow an animal to flee or hide from predators (for example body design), sensory organs, legs (for example for speed or for jumping), wings, or light-weight skeletons (for example flight). • Allow an animal to construct holes or tunnels to run into and hide or to climb (for example paws or toenails).

  5. Structures for Defense • Bright colors indicate poisonous creatures

  6. Structures for Defense

  7. Structures for Defense

  8. Structures for Defense

  9. Structures for Movement • Allow animals to move to fulfill their needs such as finding food and escaping predators (for example legs, feet and arms, tails, fins, wings, body design, skeleton)

  10. Structures for Movement

  11. Structures to Obtain Resources • Allow an animal to chew, tear, and eat its food or drink (for example mouth parts including beaks, teeth, flexible jaws, tongues, tube-shaped) • Allow an animal to grab and hold its food (for example tentacles, pincers, claws, fangs) • Allow an animal to consume food found in the water (for example filtering structures for filter feeders in sponges or clams)

  12. Structures to Obtain Resources

  13. Structures to Obtain Resources

  14. ARCTIC WILDLIFE • POLAR BEARS spend most of their time on the pack ice or in the water, where they can hunt their favorite food - the ringed seal.

  15. They have thick oily fur coats and a layer of fat under their skin. When bears comes out of the water they shake the water off their coats How do Polar bears keep from sliding on ice? The hair on the soles of its feet help the bear walk on the slippery ice and snow. The bear walks with toes pointing inward to avoid slipping. Structures for SurvivalHow are Polar bears able to swim in the icy Arctic Ocean without freezing?

  16. CARIBOU are members of the deer family and are at home in the arctic. Caribou eat moss, lichen and green plants.

  17. Caribou live in groups called herds • The caribou migrate in search of food. In the winter they live in forests on the edge of the Arctic. (trees give them protection from the wind and the snow) How do Caribou walk in deep snow? • Caribou are able to walk in the deep snow because they have wide hooves with fur.

  18. THE MUSK OXEN have thick overcoats of shaggy long straight hair that hang down to the ground. Their undercoats are thick brown fleece. Some of the coat is shed in the summer. They huddle together in groups for protection and to keep warm. When wolves attack, the musk oxen form a circle around the calves. The adults face outward and use their sharp horns for defense.

  19. The Arctic Hare tucks in its ears and tail and sits for hours in the freezing wind.

  20. In the summer its color depends on where it lives

  21. Adaptations and Structures • The hares use the strong claws for digging in hard-packed snow. • Adult Arctic hares are the biggest hares in North America. • Hares are able to survive the Arctic winters by huddling together in snow drifts, under bushes or behind rocks • When alarmed they rise up on their hind legs to look for danger and then bound off very quickly

  22. Hopping up on their hind legs like a kangaroo, they can reach speeds of 64 km. per hour • Young hares quickly learn to sit perfectly still and become almost invisible to their enemies

  23. Hares may fight. They box, scratch and snap at one another but they do not bite

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