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If camera doesn't work click here :)
Underwater Bounce is one of our favorite games! This game is all about bouncing fish up, and avoiding the jellyfish.  But instead of pushing buttons - YOU are in control! In other words... YOU become part of the game through your computers camera!​
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Instructions:
  1. Click the green flag to start
  2. When asked to use your camera click "allow" otherwise the game won't work.
  3. Bounce the Humu Humu up for points.
  4. Avoid getting stung by the Box Jellyfish. They take away points!
  5. Have Fun!​
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▶ The box jellyfish predictably visits the warm waters of Hawai'i monthly and is most commonly found on Hawaii's leeward (west) and south shores. 
▶ The most common type of jellyfish in Hawaii is the Carybdea alata and Carybdea rastonii, also known as box jellyfish because of its squared body.
▶ Their arrival on Hawaii’s beaches is quite predictable. They usually arrive around 9-12 days after a full moon (but occasionally they have been observed on off-cycle days as well). This is when warning signs are usually posted on many Oahu beaches.
▶ They are active predators, capturing small fishes and crustaceans with their potent sting.
▶ Box jellies are found in shallow tropical seas throughout the Pacific, Indian, and Atlantic Oceans. They generally occur in quiet, shallow waters of protected bays  and over sandy-bottomed shorelines. 
▶ A fully-grown box jellyfish can measure up to 20 cm (7.9 in) along each box side (or 30 cm (12 in) in diameter), and the tentacles can grow up to 3 m (9.8 ft) in length. 
▶ Rather than drifting as do true jellyfish, the box jellies are capable of achieving speeds of up to 1.5 to 2 metres per second or about 4 knots (7.4 km/h; 4.6 mph).
▶  Tentacles of jellies and their relative, the Portuguese Man-of-War, are lined with microscopic stinging cells. Each cell fires a barbed thread that can penetrate the skin and deliver toxin that causes a burning sensation and, sometimes, more severe reactions. 
▶ If you see a jellyfish on the beach, don’t touch it as its tentacles can cause a painful sting even if the animal is dead. 

What can you do if you get stung by a box jellyfish or Portuguese man-of-war?
  1. Carefully remove (pluck, not scrape) the tentacles from the skin (use a towel, napkin, or other item other than your fingers) and rinse the affected area with vinegar.
  2. Get medical help in case you suffer from a severe reaction. Immediate medical care may be necessary as jellyfish stings may cause an anaphylactic shock or even death. 
  3.  Get the help of a lifeguard or call 911.
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Underwater Bounce is one of the Scratch coding projects in the Keiki Coding program and Keiki Coding Vol1: Maui book.