Their bodies can sense the hours of daylight, and when the daylight starts getting shorter, their hormones will tell the cells to stop producing melatonin. Animals that turn white in winter use the length of day as their cue to stop producing pigment in their fur.Other fish rely on their sense of smell to find their way back to fresh water. They use a kind of internal compass to head back to the spot.
Some salmon return to any body of freshwater to spawn, but some salmon have special ways of finding their way back to the place they were born. They return to the freshwater to spawn (lay and fertilize eggs) and die.
Salmon are born in freshwater, but then spend their lives in saltwater. So that's why popcorn has all those funny shapes and feels kind of like foam. When it explodes, that soft gelatinous endosperm hits cooler air and it hardens up in whatever shape it has exploded into. That steam pushes through the endosperm and turns it kind of soft and that endosperm builds up pressure and explodes through the husk. When you heat up popcorn, the tiny droplet of water gets hot and turns into steam. The endosperm is what you're actually eating when you eat popcorn. Inside the husk is a tiny little droplet of water surrounded by something called the endosperm. Store leftovers in an airtight container.How do popcorn kernels pop? How do salmon know where to return to spawn? How do rabbits change colors? Why does television fry your brain? How do zippers zip stuff? Who was the fastest runner in the world? In this episode, we'll tackle all of these questions!ĭownload our learning guides: PDF | Google Slide | Transcript One-half cup of kernels makes approximately 15 cups of popped popcorn. Tastes great plain or add your favorite popcorn topping. Remove from heat once popping slows to avoid burning popcorn. Shake and move the pot continuously as the popcorn pops. Once they pop, pour 1/2 cup of kernels into pot and place lid on top. Heat 3 tablespoons of oil of your choice in a large pot over medium heat. 
Remove from microwave once popping slows to avoid burning popcorn. Close bag and microwave on high for 2-3 minutes. Pour 1/2 cup of kernels into a brown paper bag.
Remove any chaff from the kernels as much as possible. If using Popping Ears, shell (remove) popcorn from the ear and place kernels in a bowl. Popping popcorn off the ears instructions
It is normal for some popped kernels to stay on the ear. Microwave on high for 2-3 minutes until popping slows. Take one ear of popcorn and place in brown paper bag (or just in a bowl if you want to watch it pop! very fun but makes for a messy clean up!).
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