Kindergarten Science Experiments (Page 198)

Physics of Vibrations

Science Fair Project Idea

Scientific Method

Tennis racquets, baseball bats and golf clubs all vibrate when they hit the ball. You can often feel it in your hands, particularly if you "mis-hit" the ball. You can find the point(s) on your racquet, bat or club—called the "sweet spot"—that minimize unwanted vibrations. Low-tech method: hang the racquet or bat straight up and down with a string from its handle. Lightly hold the handle with your thumb and forefinger and have a helper sharply tap the bat, strings or club face… Read more

Picture This: How Visualizing Data Can Lead to the Right (or Wrong) Conclusion

Science Fair Project Idea

Scientific Method

Big data is one of the most promising and hyped trends in technology and business today. Big data refers to data-analysis jobs that are too large and complex to be analyzed by applications that are traditionally used. Big data sets hold valuable information. Many publicly available data sets have the potential to improve our everyday lives by giving us insight into the things we care about. How well-equipped are we to extract information from the data? Visualizations and aggregations (or… Read more

Pinholes, Light and Aperture Size

Science Fair Project Idea

Scientific Method

Pinhole cameras are not just for grannies! Even compared to all of the latest technology, a pinhole camera still gets beautiful results. Find out how this very simple aperture design works to control the way light enters the lens of your camera. Read more

Pinwheel Magic: Take a Spin with Animation

Science Fair Project Idea

Scientific Method

Do you enjoy watching cartoons and animated movies? Do you have fun playing video games? What do all of these things have in common? Fantastic computer animation, that's what! It's a cool job to take an interesting story or game and make it more entertaining by animating it. In this computer science project, you won't animate a full-length feature movie, but you will animate a pinwheel—a project that can go a long way toward creating your own longer animations! You will create an animated… Read more

Pinwheel Science: Weekly Science Activity

Blog Post

In this week's spotlight: an energy-focused family science experiment that explores the relationship between the potential power of a wind turbine and the source and location of the wind. Using a pinwheel, students create their own horizontal-axis wind turbine and experiment to see how the pinwheel spins when the wind comes at it from different directions—and how this translates into how much weight the wind turbine can lift. A pinwheel is a simple example of a wind turbine, but with… Read more

Pitch Perception

Science Fair Project Idea

Scientific Method

Do violin students have better relative pitch than piano students? Since the violin requires the player to choose the correct location to stop the string in order to sound the proper note, you might think that violin players would, as a result of practice, have better ear training than piano students. On the other hand, you could argue the opposite viewpoint, since piano students would have the benefit of hearing correct intervals (assuming that the piano is in tune). Which hypothesis do you… Read more

Pixel Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a video and computer games project and family activity that lets you investigate how the number of pixels used to create a video game object determines how it will look in the game. If you compare older games to new ones, you probably see a big difference in how the characters look today. Which look better? Do you know why? The number of pixels used in creating the images has a lot to do with the differences you see. In this… Read more

Pizza Box Solar Oven: Weekly Science Activity

Blog Post

In this week's spotlight: an energy-focused family science activity that doubles as an alternative energy experiment and a recycling project. Using a pizza box (or other shipping box), foil, a few other readily available materials, and the power of the sun, you can make a functional solar-powered oven. Cooking will take longer than in a kitchen appliance, but with some planning, you can cook a meal or prepare a campsite batch of s'mores with your own homemade solar oven! How does a solar… Read more

Plastic Deformation: Glass Transition of Some Plastics

Science Fair Project Idea

Scientific Method

Some plastics undergo an unusual transition, from a hard, glassy state to a soft, rubbery state, with increased temperature. For this project, you should do background research on the effects of temperature on different types of plastics. Make sure that you understand the difference between thermosetting and thermoplastic polymers. You should also look for information on the glass transition temperature (Tg) for different plastics. Pure polyvinyl acetate has a Tg of 28 C (about… Read more

Playing the Angles: The Physics of Balls Bouncing Off of Surfaces

Science Fair Project Idea

Scientific Method

Think of hitting a baseball, heading a soccer ball into the net, or hitting a tennis ball with a racquet. Where the ball goes depends on...what? You can set up a simple model to start your investigation. You'll need a marble, a flat piece of wood, a flat piece of cardboard, a pencil, a ruler, a protractor, and a level surface. Lay down the cardboard down on a level surface and set up the flat piece of wood at one edge. The wood will act like a wall, and you're going to roll the marble at… Read more

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