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More Solubility Ideas
Science Fair Project Idea
Scientific Method
A solution consists of a solute dissolved in a solvent. A solution is saturated when no additional solute will dissolve in it. Can a saturated solution of sodium chloride dissolve any Epsom salts? Can a saturated solution of Epsom salts dissolve any sodium chloride? How does solubility vary with temperature? How does solubility vary with the surface area of the solute? Design experiments to find out! (Gardner, 1999, 16-17, Stretton, 2004) Read more
Moss is Boss: Using Plants to Determine Direction
Science Fair Project Idea
Scientific Method
Have you ever gone camping, looked up at the stars, and found the Big Dipper? Two stars in the dipper part of this constellation point to Polaris, the north star, which people have used for thousands of years to help them find their way. In this plant biology science fair project, you'll investigate whether plants, like moss, can help you find your way, too. Read more
Motion After-Effects in Vision
Science Fair Project Idea
Scientific Method
If you stare at a waterfall, or look at passing scenery from the window of a moving train, you will have a strange sensation when you turn your gaze to something stationary. You can investigate these types of motion after-effects with simple equipment described by the Exploratorium. How long does it take to induce the effect? How long does the effect last? Can the after-effect be canceled by viewing motion in the opposite direction? (Staff, date unknown) Read more
MP3 Squeeze: How Much Compression is Too Much?
Science Fair Project Idea
Scientific Method
Do you love to listen to your MP3 player while you're exercising, or listen to songs on the Internet? The relatively recent development of MP3 technology has made it possible to take a stack of CD's and store them on a device no bigger than a deck of cards. How does the MP3 format squeeze all those CD's down so well, and can it go too far? Try this music science fair project to find out! Read more
Mummification Science: Weekly Science Project Idea/Home Science Activity Spotlight
Blog Post
In this week's spotlight: a pair of projects that bring the science behind Egyptian mummification into the kitchen or classroom. In these hands-on human biology projects and activities, students (and families!) simulate the process of mummification with a hot dog and baking soda. What does a mummified hot dog look like after seven days? After fourteen? Better yet, how does it smell! Experiment to find out what's really going on when something is mummified. Minding your Mummies: The… Read more
Musical Bottles: Weekly Science Activity
Blog Post
In this week's spotlight: a music-themed science activity that helps families explore the relationship between the sound an instrument like a clarinet makes and the length of the air column. When a sound wave travels down a longer or shorter distance, how does what we hear change? In this activity, students use glass bottles filled with differing amounts of liquid to experiment. With some careful listening and trial and error, you might be able to play a song by blowing on the bottles in a… Read more
Musical Straws: Weekly Science Project Idea and Home Science Activity Spotlight
Blog Post
In this week's spotlight: a music-themed family science experiment and science fair project. With a set of ordinary drinking straws, you can create a group straw "oboes." Can you play them? Sure! By blowing air through them, similar to the way you play a reed instrument, you can produce musical notes. At the end of the activity, you should have a set of straws, each of which will play a different note on a musical scale. What is the secret to changing the note each one plays? In this music… Read more
Need Help Getting Out of a Sticky Situation?
Science Fair Project Idea
Scientific Method
Does adhesive tape hang tight at different temperatures? Measure the adhesive strength of tape at both low and high temperatures. To raise the temperature, we suggest using a blow dryer at both low and high heat settings. To lower the temperature, use an ice pack (try to keep condensation from forming on the tape and confounding the results). For even lower temperatures you could try "dry ice" (frozen carbon dioxide), if available. (Wear heavy gloves when handling dry ice, because it can… Read more
Newspaper Tower
Science Fair Project Idea
Scientific Method
Predict how tall you can build a tower using only two sheets of newspaper as building material. You can't use tape, glue, staples, or anything else, just two sheets of newspaper. You can tear, bend, cut, or fold the newspaper. Try it out and see how close you can come to your prediction. Can you beat your prediction? As you're building, you may come up with ideas to make a better tower. Try them out! (It's not like the materials are expensive!) Here are some variations you might want to… Read more
Nine creative science projects to make and give!
Blog Post
Nine creative science projects to make and to give! Note: See Holiday STEM Projects to Make and Give for our updated Make and Give collection! Pairing science learning with creative projects that students can keep at the end of the activity is a win-win for students. Whether they make something to use or to display, finishing a science activity and taking home the results is always fun. At this time of year, there are many science activities that can also do double… Read more
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