Science Buddies
Science Buddies: The Milky Way and Beyond: Globular Clusters
Globular clusters, compact groups of about a million stars that move around together in galaxies, are among the oldest objects found in the universe. Since they are found most galaxies and since they've been around for so long, globular...
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Science Buddies: Sunspot Cycles
Sunspot activity has been monitored continuously since about 1700. The historical data shows that sunspot activity rises and falls in a roughly 11-year cycle. This project shows you how you can use both graphical and statistical analysis...
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Science Buddies: An Experiment in Visual Perception
Graphical methods of data presentation are a key feature of scientific communication. This project will get you thinking about how to find the best way to communicate scientific information.
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Science Buddies: Give Yourself a Lift: Lightening the Load With Pulleys
Before the Industrial Age, people relied on muscle power for moving and lifting heavy objects. Here's a project that shows you how you can use your head to make heavy lifting easier on your muscles - and your back.
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Science Buddies: How Far Can Sparks Jump?
Piezoelectric barbecue fire starters work by creating a spark that ignites the volatile lighter fluid, which then starts the charcoal burning. They are low current, high voltage devices. This project shows you a way to find out by with...
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Science Buddies: Dome Sweet Dome
Geodesic domes are made of interconnected triangles that approximate the shape of a sphere. This project shows you how to build a geodesic dome using rolled-up newspapers and tape and then test how much weight your dome can support.
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Science Buddies: Mixing Light to Make Colors
You know how to make new colors by mixing paint or crayons. For example, you get green by mixing yellow and blue, or orange by mixing red and yellow. With paint, blue, yellow, and red are primary colors, which you can use to make other...
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Science Buddies: Solid Ground? Measuring Soil Bearing Capacity
Foundations for many types of structures rest on soil. This project shows how you can investigate the bearing capacity of different types of soil.
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Science Buddies: How Do Fears Change With Age?
Although some of us may not like to admit it, everyone's afraid of something. Big dogs, thunderstorms, public speaking, heights: what are you most afraid of? Do you think grown-ups have the same fears as kids? The goal of this project is...
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Science Buddies: Enzyme Catalyzed Reactions What Affects Their Rates?
Enzymes speed up chemical reactions by factors of at least a million. This project investigates some of the factors that affect how fast enzymatic reactions occur.
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Science Buddies: Testing the Accuracy of Eyewitness Testimony
Think back to the last time you went to the grocery store. How well can you describe the person who was ahead of you in the check-out line? How many details do you remember about the person? Here is a project to investigate the accuracy...
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Science Buddies: Candy Confusion: Can Small Children Mistake Medicine for Candy?
Many medicines come in bottles with special child-proof caps so that small children can't accidentally open the bottle and eat the pills. To a small child who can't read the label, the pills might look just like candy. This project helps...
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Science Buddies: Antlion Pits in Open Sand or Under Leaf Cover
Antlion larvae are known for their predatory ways. In sandy areas, they dig pits to trap ants or other crawling insects that happen to stumble in. This project shows you how to create a mini-environment for antlion larvae to test their...
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Science Buddies: Animal Magnetism: Do Magnets Affect Regeneration in Planaria?
The human body has an impressive ability to heal itself after injury, but humans have nothing on planaria. Planaria have an amazing ability to regenerate. An entire animal can regenerate from just a fraction of the body. This project...
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Science Buddies: Explore the Forces of Friction
We all recognize what friction is, but do you really understand what causes it? This project focuses on friction, its causes and forces and specifically how it affects how fast you can slip down slides.
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Science Buddies: Dog Smarts: What's Going on Behind Those Puppy Dog Eyes?
Have you ever wondered what goes on in your dog's mind? Even though humans have the benefit of language, trying to understand another person's thoughts can be hard enough sometimes. This project will show you some behavioral tests you...
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Science Buddies: Eeeeew! Maggot Mass Temperature
If you're looking for an experiment that will gross out just about everyone, you probably can't do much better than this. This project investigates an important question in the field of forensic entomology. Just make sure to get...
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Science Buddies: How Much Weight Can Your Boat Float?
Have you ever wondered how a ship made of steel can float? In this project you'll investigate how much weight boat hulls of various shapes and sizes can support without sinking.
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Science Buddies: Decisions, Decisions: Judging a Book by Its Cover?
This project challenges you to think like a politician (and a scientist.), and try to ascertain what factors are most important as individuals make their decision on how to vote. For example, is it what is being said, or who is saying it?
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Science Buddies: The End Zone: Measuring Antimicrobial Effectiveness
Antimicrobial agents are chemicals that are used against bacteria. There are many such agents available. Because there are many different situations where bacterial control is important, no antimicrobial agent is effective in all...
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Science Buddies: Minimizing Bacteria in the Thawing and Cooking of Meat
Here's a practical project that sheds light on safe practices in the kitchen. Use this information to determine which method of defrosting meat is safest and which method of cooking kills the most bacteria.
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Science Buddies: Effects of Food Preservatives on the Growth of Microorganisms
The problem of protecting food from spoilage has been with us since prehistoric times. The solutions to this problem have changed with advances in technology and knowledge about what causes food to spoil. This project uses liquid...
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Science Buddies: Distance and Constant Acceleration
This project is an experiment in classical physics. You'll be following in Galileo's footsteps, and investigating Newton's laws of motion, using a metronome as your timing device. This resource will help you get a firm understanding of...
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Science Buddies: Measuring Sugar Content of a Liquid With a Laser Pointer
Here's a project that shows you how to use a laser pointer and some knowledge of physics to figure out the concentration of sugar dissolved in a liquid.
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