Moles and Molecules - the Concept
When dealing with elements and atoms, things get pretty small so they become pretty confusing (usually). So let's go big and understand...
Question and Engage
"...when I ask that kind of a question in class, 80 percent of the studentsare still scribbling the last thing I said, 15 percent are...
Photosynthesis
All living things need energy. Where does energy come from? Respiration. Let's first recall the equation for respiration: glucose +...
Organic and Inorganic Compounds
Organic Compounds: All contain Carbon in them and often Hydrogen to form hydrocarbons. Organic compounds are compounds produced by living...
Ripple of Hope
"Each time a man stands up for an ideal, or acts to improve the lot of others, or strikes out against injustice, he sends forth a tiny...
Answers
"Computers are useless. They can only give you answers." -Pablo Picasso Answers can't make you think. Answers can't teach you. Answers...
Stimulate, provoke, engage.
"Teaching, properly conceived, is not a delivery system. You know, you're not there just to pass on received information. Great teachers...
Crushing a walnut
Why can't we crush a walnut with one hand, but can crush two walnuts if we hold them both in one hand and squeeze? Answer: Two walnuts...
Pressure
Why can camels still stand on sand without sinking despite their weight? Why don't we sink into the snow when we are skiing? That's...
Weight
This is going to be a short article but make sure you understand Newton's Second Law first. Weight is actually a force - but we don't use...
