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25 Superb Optical Illusions For Kids An optical illusion (also called a visual illusion) is characterized by visually perceived images that differ from objective reality. The information gathered by the eye is processed in the brain to give a perception that does not tally with a physical measurement of the stimulus source. There are three main types: literal optical illusions that create images that are different from the objects that make them, physiological ones that are the effects on the eyes and brain of excessive stimulation of a specific type (brightness, color, size, position, tilt, movement), and cognitive illusions, the result of unconscious inferences. Source Wikipedia. These optical illusions for kids help them in increasing concentration power and sharpen their focus. Though these optical illusions are for kids, we are sure that adults will enjoy them, as well. Advertisement Pink Dots If your eyes follow the movement of the rotating pink dot, the dots will remain only one color, pink. Bird in the bush Colors

The Science Spot examines bioscience issues in biodiversity, environment, genomics, biotechnology, evolution, new frontiers in the sciences, and education. Includes peer-reviewed articles, class lessons, and educator resources. Budget Homeschool Arthur Play games! PreviousNext Print it out! Watch Videos! Dealing with your child's health can be challenging and sometimes scary.

Van de Graaff Van de Graaff Generator March 21st, 2009 Mark Rehorst When I was a kid I had a very small Van de Graaff generator (VDG) and it was a lot of fun. I always wanted a larger one but never got around to making one until Alex told me about someone bringing one to school and demonstrating it in his class. Then I was at an Ikea store and saw those bowls and the decision was made for me - it was time to build one! Click small images to see larger, more detailed images. I originally built the generator with a positively charged sphere, as shown in the photos and plans on this page. How VDGs work: A VDG works on the principle of triboelectricity. A VDG has two rollers and a belt with a motor to drive it all. Here's a brief biography of the inventor: Building a VDG: Home The Young Scientists Club -Home A new (home)school year begins: | A month ago, I was feeling kind of stuck for blog post ideas, so I threw it out there to Twitter and Facebook — what would guys like to hear about? — and, to my surprise, someone asked me about homeschooling my kid. Huh. I admit, I don’t post much about my kid because, to be frank, I hate to see bloggers use their kid’s life as fodder for posts. My kid is a person who has a right to privacy — to not have her life broadcast for the cheap entertainment of others — the same as anyone. But, at the same time, I really see homeschooling as going hand-in-hand with my ideas about voluntary simplicity, and since I was asked, I’m breaking my vow of not making posts about my kid (although I asked her first it she would mind and she was all “sure, whatevs” about it). I never know quite how much detail to delve into when someone asks me about homeschooling my kid — do they want to know why we chose it? So she’ll never equate good grades = good/smart person; bad grades = bad/stupid person.

Preschool Printables Help prepare your child for elementary school and beyond! These preschool worksheets are easy to download and help make early learning engaging for your 3-, 4-, and 5-year-old. Guide your child through these preschool worksheets to teach him about letters, music, shapes, imaginative play, and more. Preschool worksheets are great learning tools for young children. Kids who are just starting to work with paper and writing tools need extra help and structure to make the most of their time with preschool worksheets. Try these tips to create an educational and engaging environment for your child while using printable preschool worksheets: Give your child a clutter-free and quiet space to complete worksheets.

900,000 volt Van de Graaff Generator Using Cheap Parts Lets build a 500,000+ volt Van de Graaff generator!! I built this one in about a week, using scrap parts from a sewing machine and materials ordered from I have seen the larger machines in operation at my local science museum and this one does just as well. I have made hair stand on end and even pie pans float up and off the machine. For an explanation of operation go to Wikipedia: ALSO, note that this machine can generate enough static to stop a pacemaker and any other digital device, keep people with heart problems away. Well if your know anything about Van de Graaffs you know that the bigger and smoother the sphere or collector the bigger the charge. The recharge rate or time it takes to build up a charge high enough to jump from the sphere is determined by belt speed and width. Also if you want to boost your storage and spark a bit build this: Leyden jar of DOOM! Enjoy, Zachary M.

ZME Science - science news, research, health, environment, space Science Toys EasyFunSchool - FREE homeschooling curriculum, lesson plans, unit studies, preschool activities, literature unit, Christian homeschooling history unit study, Charlotte Mason style homeschool lesson plans, curriculum ideas, children's recipes, kids cr