Résultats lu par "David Armstrong" dans Toutes les catégories

Have you ever had an electrical power outage at home? In 2003, the largest blackout in United States history left millions of people without power for days! Learn how power generation plants are connected to the power grid that distributes electricity to regions of the country and to homes. What causes power outages? How does losing power affect daily life? What can people do to conserve energy?

Popcorn is a yummy snack–how is popcorn cooked? From an un-popped kernel, heat boils the water that the kernel naturally has inside it. The water turns into steam after it builds up inside. Scientists used cameras to discover how corn popped! What’s inside the kernel to make an explosive change happen–turning a kernel of corn into a tasty buttery treat–popcorn?

Do you know how the anatomy of the eye allows us to see colors? Learn about the part of the eye called cones. Cones are like sensors that detect colors. The more cones a person or animal has, the more colors the eye perceives. Can you guess if your pets see you in full color, or if you see your pets in full colors?

A big snowstorm hits Lark street and people in the neighborhood find ways to help each other and have fun! People shovel snow–Mr. Thompson pushes the snow out of the street with his snowplow. Maria helps her neighbor, Mr. Russel, get his groceries. The families on Lark street have fun in the snowy weather, too! They build snowmen and build ice sculptures. How do you have fun in the snow?

Have you ever wanted to live in Antarctica? What kind of house would you live in? A snow house, of course! Follow the instructions to learn how to build a snow house. What is a snow house made from and what tools do you need to build it? Guess what the first step is to build a snow house?

Jennifer needs to get her special toy out of the room where her baby sister, Kaitlin, is sleeping. Jennifer and Yo try not to wake Jennifer from her nap while getting her stuffed snake toy–Kaitlin was fast asleep but awakens and begins to cry!

Yo and his grandmother see a rabbit in the yard and watch it quietly. They sit very still. Yo notices the rabbit doesn’t move the same way his dog, Lips, does. Yo learns that the rabbit has powerful short front legs and long, powerful back legs. Lips decides to dash for the rabbit! Will Lips catch the rabbit? What other ways are Lips and the rabbit different? How are they alike?

Dogs have many abilities, along with being super cute–they have great noses that can sniff out smells that humans can’t!

Hector wants to be a superhero just like Universe Man–fighting crime! Hector needs glasses to see and superheroes don’t wear glasses, especially not Universe Man. Hector’s mom takes him to his eye exam and he doesn’t understand why he needs glasses. Will Hector allow his feelings to get the best of him and continue to fight crime squinting? Or will he be a brave boy like a superhero?

Did you know why foods taste different? Food flavors are not just about taste–your sense of smell helps you taste too! Your nose sends messages to your brain about the taste and smell of different foods. Sour and sweet tastes mix to form flavors like orange juice and lemonade. Discover the five tastes your tongue’s taste buds sense. Can you guess what scientists identified as the fifth taste?

There’s a chili tasting contest! Nestor Dock and his friends cooked their chili for everyone to taste. Will Nestor have a chance to win with so many different taste buds? Someone wants a pinch of salt, another person doesn’t eat meat, and another person says it’s just too spicey! Find out if Nestor’s ingredients chase everyone off. What would you put in your chili?

Martin, Liz, and their friend take a hike through the forest and learn about animals and plant life. This forest ecosystem is a healthy environment for animals and plant life to grow. A woodpecker checks for bugs to eat in a nearby tree, with bark that is ancient. Martin notices moss on the old tree bark and poisonous mushrooms! What else will they find on their forest hike?

Did you know food scraps you throw away help plants and vegetables grow? Scavengers, animals who eat our food scraps, and decomposers: bacteria, fungi, and insects break the food down into soil. They eat some and put the rest into the soil we use for planting and gardening. Can you guess which animals and bugs make the best decomposers? What are scientists learning about decomposers?

Yo’s favorite thing about rays is the way their bodies feel soft and smooth. Yo and her grandmother visit an aquarium full of sharks and rays where Yo learns about rays, like how they flap their wings to swim in the water. Yo thinks the way their back and belly change color to camouflage from predators is a good trick! Learn all about rays with Yo!

What happens when the trash you throw out is picked up by the garbage truck? Where does it go? Once the garbage truck picks up the trash in your neighborhood, it goes on a journey to be broken down. A recycling truck might pick it up and make new things or it may be used for a compost heap, or maybe it goes to a landfill where it’s covered with dirt. Find out what happens when a landfill is full!

If you pay close attention and use your senses–nature will tell you many things! Yo observes a pinecone with closed scales, which means it will rain. Yo is right; it rains, and he tells Lips, his dog, that pine cones only open when there is sunshine! Yo waits patiently for the pine cone to open. What happens when the pine cone opens? Will Yo see the seeds once it stops raining?

Yo visits the beach with his mother who reminds Yo they need to use sunscreen to protect their skin from the sun. Yo wonders why his mother tells him to drink water–then Yo gets very thirsty! Yo sweats in the summer weather and learns sweating is good for the body. Yo jumps in the water to cool off! He wants Lips, his dog, to jump in, too. Find out if Lips takes a swim in the ocean!

Making a compost pile is a simple way to dispose of waste—like leaves, grass clippings, fruit, and vegetable peels—and turns them into healthy food for plants! Cece notices how nice Jane’s flowers are and wants to make a compost pile, too! Jane and Click show their friends how to make compost and you can learn too! What else is needed to help the compost decompose?

Yo learns an important rule about using a campfire when she goes camping with her mother and father. Yo notices land destroyed by a forest fire. Campfires can start just from a small spark hidden in the coals of a campfire and a little wind! Yo discovers how forest fires can start and how to prevent them. What does Yo learn about being safe with campfires? How would you put out a fire?

Yo helps his father recycle garbage and learns what types of trash go into the recycling bin. Yo learns his fleece vest is made of plastic and that special factories recycle the plastic and melt it down into new things like toys and his favorite fleece vest! Can you guess which trash goes into the blue bins? Yo wants to surprise his mother with a special present–knowing how to recycle!