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make a small filtration system

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Clean water is one of the earth’s most valuable resources. This water filtration system doesn’t make muddy water clean enough to drink, but it does show you how filtration systems work and how you can get most of the dirt out of water. To make a water filtration system you need: a cup of dirty, muddy water a clean clay pot on a saucer a coffee filter crushed charcoal clean, well-rinsed sand clean, washed gravel a sieve Directions: Open a coffee filter into the clay pot. Fill the bottom of the filter with some charcoal. Add wet clean sand on … Continue reading make a small filtration system

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miniature rocket

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Watch a ‘rocket’ take off from the launch pad of your backyard! Do this outside. To make a miniature rocket you need: a small, thin container with a snap-on lid some vinegar cotton balls a teaspoon of baking soda Directions: Fill the small container halfway with the vinegar. Wedge the cotton balls into the making sure it doesn’t actually touch the vinegar. Put the baking soda on top of the dry cotton ball. Put the lid on the container. Turn the container upside down, put it on the ground and get away! Watch the container blast into the air like … Continue reading miniature rocket

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ai everywhere

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Hummingbird robot uses AI to soon go where drones can’t — ScienceDaily Researchers have engineered flying robots that behave like hummingbirds, trained by machine learning algorithms based on various techniques the bird uses naturally every day. Artificial intelligenc… Can Artificial Intelligence Predict Student Engagement? Researchers Investigate – Digital Education – Education Week Imagine if artificial intelligence—the same machine learning Netflix uses to suggest new movies to customers based on past favorites—could show teachers that students are more engaged first thi… Zumi by Robolink Help Kids Learn about AI and Automated Cars Zumi! It’s an automated car which helps you learn … Continue reading ai everywhere

activities

mothball boat

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Energy can come from the most unusual things. Who ever thought a mothball could be a source of energy? Use a mothball to move a boat in your bathtub. To make a mothball boat you need: a mothball a Styrofoam meat tray scissors a piece of string Directions: Cut a boat shape from a Styrofoam meat tray. Cut a small pie-shaped notch in the stern of the boat. Poke a hole on each side of the triangle you’ve cut. Wedge the mothball into the notch Thread the string through each hole, tie it, and position the string to help hold … Continue reading mothball boat

activities, that's engineering

paper airplanes

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Paper planes are great projects. There are 1000s of designs, each with different flight characteristics. Some require cutting, others are made by folding only. Dihedral provides aerodynamic stability to your models by making them want to self-center during flight. Paper airplanes have no intelligent flight controls after they leave your hand, so the plane needs to be naturally stable or else it will crash. Designs perform better when some dihedral is added to the wings. Elevator is the aeronautical term for the hinged flap at the tail section of a plane that causes it to either climb (gain altitude) or … Continue reading paper airplanes