Both your sense of smell and sense of taste detect chemicals. Your tongue is covered with about 10,000 taste buds, which detect five different kinds of tastes: salty, bitter, sweet, sour and umami. Um ...
When you hear the term “chemical reaction”, you might think of scientists in white lab coats mixing dark powders to create explosions. Maybe you think of the flurry of bubbles you saw when you mixed b ...
Gears are the toothed wheels used in many machines, including bicycles, where they work together to change the relationship between the driving mechanism and the moving parts. You pedal the cranks to ...
Have you ever seen a chef taste a newly created sauce? First, she might smell it, because a lot of taste is actually smell. Then, she might use a spoon and make sure she tastes the sauce in several sp ...