How big is one coronavirus? How big is a micron? How well do these masks protect against the virus? What can you observe about the size of particles mentioned? Why are we wearing masks?
This year the Dow Jones Industrial Average made headlines as it dropped in March and April.
The Dow is measured in points but this decline can also be measured in the percentage lost. W...
In late January, workers at the Mars Wrigley plant in Waco, Texas created this giant Snickers Bar. It won a spot in The Guinness Book of Records as the World's largest Snicker's Bar.
Wh...
Use our present need for cleanliness to engage your students.
Does it really matter whether you kill 99.9% of the bacteria or 99.999% of the germs?
In this activity, we'v...
When Brian traveled to Crete last summer with his wife and son on an Archaeological dig, buying gasoline for his small rental car got him wondering again.
He was pretty g...
Photo from the Onion, America's Finest New Source. Women on Gym Treadmill Cranks Incline up to 90 Degrees
This is a very short activity designed to give students a more visual underst...
Let your students talk about their favorite Girl Scout cookies as they figure out what the local GS chapter really earns from these sales. Use this old graphic (where a box...
That's a big roll of toilet paper! Why would anyone need such a big roll of toilet paper? How does it compare to Charmin's other toilet paper products? If this roll lasts for...
Should I oven bake it, deep fry it or barbecue and smoke it? When do I have to wake up to begin preparations? How long will the cooking take? How much will it cost? How ma...
This is a great idea! Motivate kids to get rid of all of that candy for a good cause. Operation Gratitude and dentists are encouraging healthy eating, motivated giving, and offering a goo...