Résultats lu par "David Armstrong" dans Toutes les catégories

If you plan to visit one of the coldest, windiest places in the world, you’ll need to be prepared! Antarctica's roads are covered with packed snow and ice, requiring special vehicles and snowmobiles to drive on this slippery land. A bus named ‘Ivan the Terra’ carries 56 people and has tires big enough to keep the ground from sinking! Learn about other vehicles that transport cargo and people.

Have you ever wondered how a penny or dime is made? Coins are made from metal in factories called mints. First, an artist draws a picture of the coin, next clay is used to make a mold made from plastic. Then a machine engraves and designs a piece of metal–these metal pieces will be used to make stamps called dies. In the United States, there are only four factories–can you guess where?

Doctors, nurses, and people who work in hospitals use stethoscopes to listen to their patients’ hearts and bodies. It makes sounds loud so the doctor can hear better. Yo’s mother has an old stethoscope that Yo uses to listen to her own heart and stomach. Yo places it on her head. What sounds will she hear? Find out what else Yo can hear with the stethoscope!

Yo cuts his finger on a glass and needs his grandfather’s help–Yo’s grandfather knows just what to do to! Yo learns from his mother that there are tiny germs that could get into the cut, so Yo’s grandfather fights the germs with soap and water! Can you guess what his grandfather does next to help? How does Yo’s grandfather stop the bleeding?

Help tell the story of Benjamin Franklin's discovery of electricity! Together with your friend, act out this play to learn how Benjamin Franklin used a wire, attached to the top of a kite, to attract lightning from the sky. Lightning is a form of electricity! It travelled down the kite string to the key that created electric sparks! How did Franklin come up with the idea for his famous experiment?

Of all the historic spacecraft vehicles displayed at the Cradle of Aviation Museum in New York–one remains special! On the Moon, it gave shelter to the astronauts. The National Aeronautics and Space Administration Lunar Module–also used as a communications center–the LM-13 was built to transport people from earth to outer space! Learn what else makes this aeronautical spacecraft special!

Yo knows just what to do if he catches fire–stop drop and roll! Yo visits the fire station and learns how to put out dangerous flames by rolling around on the ground. He learns that running and waving your arms makes fire get bigger. Yo practices what to do and what not to do in case of fire. Would you know what to do to protect yourself? Have you ever visited a fire station?

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?

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!