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Compare Circumference and Diameter with String
September 24, 2015 10:01 AM
Things that are circular in shape surround us. From quarters to wheels to the openings of cups and bottles, circles are abundant, and they come in all sizes. In this week's family science activity, students explore properties of a circle, just like mathematicians do, to see if they can identify the relationship between the diameter of a circle and the circumference. This hands-on math activity turns these measurements (and the concept of Pi) into something that can be visualized with… Read more
Survey Science: Asking Questions and Analyzing Answers to Test a Hypothesis
September 23, 2015 10:45 AM
Using a survey to gather data for a science project can be a lot of fun, but successful survey science takes careful preparation, planning, and data analysis. What will the survey data show? "Survey says!" is a famous phrase used in the classic "Family Feud" television game show. Surveys offer an interesting look at information gathered from a group of participants, and with careful planning, you can use surveys to help investigate a range of science… Read more
Wind Turbines and Energy from Wind Turbulence
September 17, 2015 11:00 AM
Wind turbines can be used as a source of clean, renewable energy. With their tall towers, wind turbines harness the movement from the wind-spun blades to generate electricity. The positioning of a wind turbine, however, will determine how effective it is. Environmental and civil engineers carefully evaluate the placement of wind turbine towers to help ensure they get maximum exposure to wind. What happens when there are buildings, trees, or other objects nearby? In this family science… Read more
Surviving a Zombie Apocalypse
September 11, 2015 12:50 PM
Hands-on science and an understanding of electronics, chemistry, physics, and other STEM subjects can improve your odds of survival in the event that zombies come to town, or in the face of some other unexpected disaster. Image: The image above was used in a clever CDC "zombie preparedness" campaign in 2011. At one time it was vampires. Now and again there are werewolves and witches or even wizards and Muggles. But with the hit "Walking Dead" (AMC) television series entering its… Read more
Solve a Mystery with Science
September 4, 2015 2:30 PM
What does a scientist do when faced with a mystery ingredient that could be the key to solving a crime or accident? Understanding how certain chemicals react in the presence of other chemicals can be the key to confirming the identity of a substance. Students get a hands-on look at chemical reactions using a color test as they work to solve a hypothetical medical mystery in the Crime Scene Chemistry project. The premise of the Crime Scene Chemistry:… Read more
A 'Big Blue Live' Look at Marine Life
September 2, 2015 2:40 PM
In a three-part television series from PBS and BBC, viewers tune in to an amazing ecosystem off the coast of Northern California where all kinds of migrating animals stop to feed and refuel. Students and classes can explore environmental issues, marine life, the science of habitats and migration, and other related science questions with hands-on STEM education projects. Click the image above to visit the PBS website where you can watch the "Big Blue Live" episodes online. Sea otters… Read more
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