Résultats lu par "David Armstrong" dans Toutes les catégories

What would we do without wheels? We use wheels for all kinds of things, including transportation. Learn about alternatives for transportation other than the wheel! Do you use any of these different ways of moving around?

Have you ever heard of the Iditarod? Learn all about the history behind the iconic sled dog race, as well as, what racers and their dogs go through as they brave Alaskan winter along the race trail.

Do you like to play basketball? Learn how to shoot free throws using science! What is an arch? What is the effect of resistance and drag on the ball? How do you use the forces of physics like angle, backspin and angle? Learn to shoot free throws like a scientist and improve your game!

Do you know how buildings you see in your city got there? Before buildings are built, machines that move the ground are used! The excavator or digger move old ground away, preparing the space for a new building! A driver sits in the cab where all the fun begins! The tools to control the machine are inside the cab. Levers control the arms which do all the digging. How does the digger’s body move?

What does the school you attend look like? Does it have two floors? Does it have a playground? Look at the building plans the architect has drawn for Hopperville’s new school. Next, the old building needs to be removed with machines like a crane and a wrecking ball. Only the excavator can build a big, deep hole for the building. Find out what the surveyor does!

Yo and his father are on an adventure in the snow—but he hates his snowshoes! He thinks he can go faster without them. So his father challenges to take try and take his snowshoes off. Will Yo be able to move quicker without his special shoes?

Yo and his dad are walking their dog, Lips, when they discover that Lips is cold and needs his own coat. Now, Yo wants to make a coat for Lips—but he doesn't know how! Together, Yo and his dad, make a coat for Lips that they measure, cut and sew from an old blanket! What pattern of fabric do they use for Lips coat?

Yo's toy giraffe is getting wet from the rain outside—he needs to find a way to keep it safe! Yo attempts to build a tower with blocks to shelter his toy from the wind and rain, but the wind knocks over the blocks. What construction advice does Yo’s mother give him that saves his toy giraffe’s tower from blowing over?

Learning a new sport can be exciting and difficult! Yo is trying to learn how to play T-Ball, but it’s harder than it looks. Luckily Yo’s Dad is here to help, and after instructing Yo on the best way to stand and swing, something amazing happens!

It’s time for bed! As Yo is being tucked in for the night, he notices his toys aren’t the same color in the dark as they are in the daylight. Yo wants to know why his train is no longer red and his ball is no longer green!

Did you know that sound vibrations make music? Learn how different musical instruments like guitar, drum, xylophone, and trumpet, make sound vibrations from the movement of strings or air—that together make music! Follow the activity to make your own instrument from straws! Experiment with short and long straws to discover which makes a high or low sound.

Germ Busters are on patrol! See the Germ Busters fighting bad germs in your blood marking them for destruction. The Busters are a team of antibodies that come from medicine you get from a shot. They are weak germs that can’t make you sick. Germ Busters keep protecting you from germs if they get inside your body again. Will you join the Germ Busters to fight the germs?

Imagine taking a flight to the stars! Yo pretends to take a rocket into the sky to visit the stars–only he wonders if he will see the stars. Yo doesn’t want to crash into them if he can’t see them!

Yo says his toy animal, polar bear, wants to know why the polar regions stay cold! Yo’s father shows him a globe of the earth! Did you know the sun doesn’t shine on the North and South Poles strong enough to keep it warm? Yo learns that because the earth is tilted, sunlight shines brightly in the middle of the earth, and dimly on the Poles. What will Yo learn when he sees a flashlight?

Do you know how the buildings in your city got there? Before buildings are built, different types of machines that move the ground are used! Some are large like the excavator or digger that moves old ground and dirt away, preparing the space for a new building! A bulldozer clears away old stones and dirt. The scoop, called the loader, does many jobs–it smooths, scrapes or carries dirt away?

Have you ever wondered about all the shapes it takes to design and build structures like buildings or bridges? Different shapes like squares, triangle and rectangles are used in construction, but which shape forms the strongest? Follow the activity using straws and string to find out which shape is the strongest, sturdiest construction?

Yo and his grandfather have car trouble on their way to the movies–their car breaks down! John the tow truck driver helps them move the car to a repair shop. Yo tells John the car made noises then the car stopped. John shows Yo how a tow bar slides under the car, and a lever lifts the car up onto the truck to be taken to the repair shop! How did the lever help make John’s work easier?

Do you know how the lightbulb was invented? In the 1800s, the first incandescent lightbulb was invented by Thomas Edison. Learn how Edison experimented with different materials, direct current, and by trial and error to design the first lightbulb. Which power company was created that funded the first electric lighting system to distribute light? The company still operates today, lighting and powering our world!

Yo visits the library and reads a story, a fiction book about elephants who can swim. Yo doesn’t think elephants would make good swimmers–he thinks they’re too heavy! The librarian shows Yo how to find non-fiction books about elephants. Yo likes the book about real elephants and is surprised to learn elephants are great swimmers after all! What are some fiction or nonfiction books that you know?

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.