Death Valley, CA - How hot was it?
This picture may have been Photoshopped and not be a true representation.
We blacked out the Fahrenheit reading of this temperature sign at the Death Valley Visitor ...
Math and Science
Genres
Grade
The drag in swimming - More Olympics activities
To win in Olympic swimming, contestants have to be incredibly fit and have marvelous endurance and technique. Do they also need to consider the science of their motions and the...
How much water should you be drinking?
As we are outdoors more and temperatures are rising, it might be a good time to look at hydration.
A healthy requirement for fluids can't really be the same for everyone. Surely the amount ...
Louisiana
We recently watched the approach of Hurricane Barry and worried about the fate of Louisiana. After the devastation of Hurricane Katrina, what would another powerful hurricane do to this fragile ...
How fast can you run?
Have you heard of The Six Million Dollar Man? He was the character in a science fiction show about an astronaut that was rebuilt, bionically, after his space ship crashed. He could run a...
Alarming ice cracks on Brunt Ice Sheet in Antarctica
A new, fast-growing ice crack is forcing the Halley VI British research station in Antarctica (shown above) to be moved. Fear of a huge break-off from the ice sheet is alarming no...
Figuring planting dates
It's time to get ready to plant my garden again. But here in Boston we have to start our seeds indoors to give them a head start before we can put plants outside. How should I fi...
What's with the plovers?
Cute little birds. Piping plovers are nesting on beaches along the Atlantic coast. Consequently beaches are often roped-off or closed to protect their nests and chicks. Is this conservatio...
Cost of light bulbs - updated!
Algebra
Number Sense
Math and Science
Math and Social Studies
Ratio and Proportion
Data and probability
There's a lot of misinformation out there about the cost to consumers of CFL and LED bulbs and the savings in energy and money that could be realized.
Let your students "do the math" and realiz...
My teacher says this stream is parabolic. Is he correct?
Instead of asking students to just believe what you've said, why not ask them to verify your assertions? Students plot the points of the stream, perhaps map them with an equation generated b...