Adaptions of Living Things: Movement Through Fluids Background • Features that allow a living thing to survive in its environment are called adaptations. • Adaptations may be body parts, abilities and skills, or behaviours. • Birds, bats, sharks, and dandelion seeds all have something in common. • • The survival of each of these species, as well as many thousands of others, relies on its ability to move efficiently through a fluid, be it air or water. • The parachute-like tufts of dandelion fruits and the helicopter –like motion of the winged fruit of maple trees, for example, are adaptations that have allowed these plants to survive. • The characteristic form that varies with each air and water creature has come about through countless generations of adaptations. • Streamlined shape, lightweight bones, and powerful muscles are but a few of these adaptations. • http://www.youtube.com/watch?v=JtYTZ DlVZHo bird pics • http://www.youtube.com/watch?v=8ysAT S8g-ac how birds fly • http://www.youtube.com/watch?v=PuVk w9Dlguc&feature=related 14min video • http://www.youtube.com/watch?v=VmP3 hlzFvco fish swim Activity One • Birds of flight!! Pictures. • Discuss the features of the birds. • These features , some of which allow birds to fly, are called adaptations. • An adaptation can be physical or behavioural; it allows a living thing to survive in its environment. • What adaptations (features) allow a bird to fly? • How does the bird move in flight? • Characteristics birds have- wings, feathers, body shape and??? • Other than birds, what else can move through air? • Insects archery arrows • Bats seeds • Planes • Hang gliders • Rockets • Darts • Lawn darts • Pictures of fish, sharks, whale. • Adaptations for swimming • What adaptations allow this animal to swim through water? • How does this animal move as it swims? • Streamlined almost bullet like- shape or the water creature. • Other objects that travel through water. • What other living things and objects can move through water? • Humans • Boats • Surfboards • Submarines • Etc? • Make a collage of different living things that are well adapted to moving through water and air. • Do the creatures that move through air have feathers? • Do all creatures that move through water have a streamlined shape? • Do any plants/seeds travel by air? If so, what are their shapes? • What are some differences between two species of birds? • What so you think the reasons are for these differences? • What are some differences between two species of water creatures? • What do you think the reasons are for these differences? • What are the main characteristics of air and water creatures that enable them to move? • Complete activity sheet 2.1.1