It’s hard work to scrub things clean with a brush or a mop! What could you invent to do that work for you?
Water sprays out of this tool at almost 250 miles per hour--way faster than a car--instantly scraping off layers of dirt!
Some people even use water sprayers to make art! The lighter parts are areas that have been cleaned by the superfast water.
Some dogs hate baths. They want it over with quickly. What could you invent to give a dog a nice bath, quicker?
This “Woof Washer” sprays water out of a hoop, cleaning all sides of the dog at once! A bottle of soap is attached too, so it’s faster!
It takes a long time to fill up even one water balloon. What could you invent to fill lots of water balloons all at once?
This invention fills up 100 balloons in one minute! Tiny tubes carry water to each balloon. Rubber bands even “tie” them closed!
What’s coming out of this toy to knock down these cups? (It seems invisible…)
This is an “air cannon”--it pushes air, and the air can knock things over. If you put “fog” in it, you can see the air move!
Check out this experiment! These people made a giant air cannon to see how powerful it would be!
This invention shoots out powerful sprays of water below a pair of shoes. What do you think would happen if you wore them?
The sprays of water are so powerful that they push people up into the air. People can even spin around and do tricks!
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How were LEGO bricks invented?
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