All articles – Page 3

103 articles

FoodWhy are chili peppers spicy?

ScienceHow does a straw let you drink?

ScienceWhy does iron rust?

ScienceWhy does metal feel cold, even in the same room?

NatureWhy do leaves turn red and yellow in autumn?

NatureWhy are snowflakes shaped like hexagons?

AnimalsIs there water inside a camel's hump?

AnimalsWhy do zebras have stripes?

FoodWhy does egg white turn white when cooked?

FoodWhy does wasabi sting your nose?

FoodWhy does popcorn go "pop"?

FoodWhy do cut apples turn brown?

FoodWhy do onions make you cry when you cut them?

ScienceHow can a microwave oven heat food without fire?

ScienceWhy do soap bubbles look rainbow-colored?

ScienceWhy does a compass needle point north?

ScienceWhy do we get static shocks in winter?

ScienceWhy does ice float on water?

ScienceWhy do earthquakes rattle first and then sway?

NatureWhy does the sea look blue?

NatureWhy do auroras glow green and red?

NatureWhy does lightning flash in a zigzag?

AnimalsHow can hummingbirds stay still in midair?

AnimalsWhy are crows said to be so smart?