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PlayOwl

Explore · Wonder · Discover

How Things Work

Ever wondered how airplanes fly, why popcorn pops or how your heart pumps? Pick a question, then watch it, look inside, try it, solve a challenge and go deeper. Every topic changes for Preschool, Elementary and Middle school.

  1. 1Watch it
  2. 2Look inside
  3. 3Try it
  4. 4Solve a challenge
  5. 5Go deeper

500 topics to explore · showing 337–360

Every topic

#337 Computers & communication How does a screen reader describe a webpage? Navigate spoken headings, links, and image descriptions on a sample page. #338 Computers & communication How does speech recognition turn sound into words? Follow a simplified journey from sound patterns to written text. #339 Computers & communication How does a translation app change languages? Translate sample sentences and explore how context affects meaning. #340 Computers & communication How does image recognition identify objects? Label pictures, test a simple classifier, and investigate its mistakes. #341 Computers & communication How does a chatbot create replies? Explore a simplified word-prediction model and compare outputs for different questions. #342 Computers & communication How do map apps choose routes? Compare routes using distance, closures, and travel time on a model network. #343 Computers & communication How does Bluetooth connect nearby devices? Pair virtual gadgets and investigate communication as they move farther apart. #344 Computers & communication How do walkie-talkies let people talk? Select matching channels and follow voice signals between transmitters and receivers. #345 Computers & communication How do undersea cables carry information? Trace light signals through a cutaway cable connecting distant coastlines. #346 Computers & communication How do phone towers pass along a moving call? Move a phone between coverage areas and watch its connection transfer. #347 Computers & communication How do spam filters recognize unwanted messages? Sort fictional messages using clues and compare correct detections with mistakes. #348 Computers & communication How do computers store letters and emojis? Match characters to numerical codes and turn stored codes back into symbols. #349 Computers & communication How can messages survive small transmission errors? Damage an encoded message and use extra information to detect or repair errors. #350 Computers & communication How do computers sort large lists? Try different sorting strategies and compare the number of steps required. #351 Buildings & city systems How do escalators move their steps? Look beneath the surface and follow linked steps circulating around the mechanism. #352 Buildings & city systems How does airport luggage reach the correct plane? Scan baggage tags and guide bags through conveyors, sorting points, and loading areas. #353 Buildings & city systems How do shipping ports move containers? Transfer containers between ships, storage yards, trains, and trucks. #354 Buildings & city systems How do canal locks raise and lower boats? Operate gates and change chamber water levels to move boats between elevations. #355 Buildings & city systems How do movable bridges let ships pass? Compare lifting, swinging, and tilting bridges while coordinating ships and road traffic. #356 Buildings & city systems How do flood barriers protect towns? Place barriers and observe how rising water moves around protected areas. #357 Buildings & city systems How do storm drains handle heavy rain? Follow street runoff and compare flooding when drains are clear or blocked. #358 Buildings & city systems How do rain gardens reduce runoff? Arrange soil and plants and compare absorption with nearby paved surfaces. #359 Buildings & city systems How do fire hydrants supply water? Look beneath a street and follow water through an opened hydrant. #360 Buildings & city systems How do water towers maintain pressure? Change tank height and water level and observe pressure across a model neighborhood.

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