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Why Is the Sea Salty?
Hold the pepper! Take a deep breath and dive on in. Wonderopolis is heading to the beach today to find out what makes the ocean so salty!
Why Is the Sea Salty?
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How Does a Hot Air Balloon Fly?
Come sail away! The sky’s the limit, and we’re hitching a ride with a big balloon. Some might even say today’s wonder is full of hot air.
How Does a Hot Air Balloon Fly?