Dyeing eggs with food coloring – Students use the chart on the back of a food dye package to compare the strangely different recipes listed for coloring a cake, icing, or dyeing eggs. They look for and create equivalent ratios…
At last, its summer again
How much pee is in this pool? – A Canadian chemist, Xing-Fang Li, has found a marker for urine that chlorine doesn’t disguise. In this activity, students calculate volume of several pools, change that cubic foot volume to gallons of pool water,…
How much water should you be drinking?
Student develop and use formulas for calculating their water needs.
How fast will my new puppy mature?
There is a new dog aging formula that depends on methyl markers that adhere to the DNA molecules of living things. Now we know that dogs don’t age as we thought that they did.
Let students explore the patterns of perfect squares and Pythagorean Triples as they analyze our piece of art and decide why the resulting construction looks like spiraling squares. For a finale they color their own spiraling triple. The activity: SpiralingTriples-activity.pdf
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 figure out when to plant my…