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Batty About Echolocation

Batty About Echolocation. What do is echolocation?. ECHO LOCATION. What is Echolocation?. http ://www.youtube.com/watch?v=bAvoz_ofoeo&feature= youtu.be http ://www.batsaboutourtown.com/pages/ BatSounds.htm. What do bats sound like?. What did you learn?.

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Batty About Echolocation

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  1. Batty About Echolocation

  2. What do is echolocation? • ECHO • LOCATION

  3. What is Echolocation? • http://www.youtube.com/watch?v=bAvoz_ofoeo&feature=youtu.be • http://www.batsaboutourtown.com/pages/BatSounds.htm What do bats sound like?

  4. What did you learn? • Draw pictures and write facts to show what you learned about bats and how they use echolocation. • Use your science notebook.

  5. What do we know about echolocation? • Bats are not actually blind • “see” with sound • Make noise that bounces off objects and living things • Echo tells them how close and what shape • Echolocation helps bats avoid obstacles and find food

  6. What does this diagram show?

  7. Batty Groups

  8. Part 1: You as an Insect • Pretend the motion sensor is a bat hanging from a branch and you are the insect it wants to eat. • Collect several runs of data to learn what the bat “sees” when you (the insect) do different things.

  9. Part 1: You as an Insect • Standing still at .5 and 2 meters • Walking slowly and quickly away from bat • Walking slowly and quickly toward the bat • Jumping up and down in front of the bat • Analyze your data. • Experiment with other motions.

  10. Part 2: Following Path of Other Insects • Open files and see the path of other insects that flew in front of the bat and were able to escape • Stay away from the bat by trying to follow their path (and make the same graph line) • Write directions to create graph line

  11. Part 2: Following Path of Other Insects • Insect 1 • Fill in blanks for directions to match flight • Try to follow path • Reflect on success of directions • Insect 2 • Write directions to match the flight path • Try to follow path • Reflect on success of directions • Analyze your data. • Construct echolocation poster.

  12. White cane helps people feel for and avoid obstacles • Far from perfect • Added special handle with transmitters • Ultrasound signals bounce off objects and echo back to cane • Turned into vibration felt with hand • Brain makes mental map

  13. The Boy that Sees with Sound • Video • http://scienceblogs.com/neurophilosophy/2011/05/25/human-echolocation-activates-visual-parts-of-the-brain/ • Article • http://www.people.com/people/article/0,,1212568_1,00.html

  14. Recommended Websites • Bat Conservation International • http://www.batcon.org/index.php/all-about-bats/kidz-cave.html • Discovery Kids • http://kids.discovery.com/tell-me/halloween/are-bats-really-blind • Kid Zone • http://www.kidzone.ws/animals/bats/ • Questions and Answers About Blindness • https://nfb.org/nopbc-questions-kids-ask • The UltraCane • http://www.ultracane.com/index.php?route=common/home

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