Showing results by author "Amy Tao Tao" in All Categories

What happens to your body while you sleep? Does it just shut off like the bedroom light? On the contrary, it turns out that all sorts of things happen.

No one knows for sure just how the ancient Egyptians built the Great Pyramid of Giza, which is taller than the Statue of Liberty. How could an ancient civilization have achieved this engineering feat? Perhaps the solution to this mystery can be answered with simple machines!

Have you ever wished you could speak to your dog? If you pay attention, you'll realize they actually speak to us all the time! Learn about the different noises and behaviors dogs use to communicate. The next time your dog "talks" to you, will you be able to understand him?

Our sun is great at shining down light and heat on earth, but was the sun always that bright? With the help of gravity, the sun is eventually able to produce enough energy to give off light. Our sun has kept this up for four billion years and will keep shining for another five billion years!

Firefighter Greg has a physical job to do so he stays strong and fit. He gets up early in the morning and sleeps where he works. Did you know that Firefighter Greg practices putting on his safety gear–in less than one minute? Or that his gear–helmet, facemask, air pack, boots and jacket–weighs 75 pounds? Find out how firefighters practice putting out fires in a training tower!

Dogs are amazing creatures with amazing bodies! Discover how fur protects their delicate skin, and which body parts gives them balance. Did you know dogs can wiggle their ears in many directions? Learn more facts about dogs and how their unique anatomy is different from other animals.

What makes all these animals fish? Fish live in the water, but they have other defining characteristics as well. Who else lives in the ocean?

See how the science of physics is utilized not only in the kitchen, but also around the house on a daily basis. Simple machines are everywhere! From brooms and rolling pins to lightbulbs and window blinds, basic everyday kitchen items transform into scientific concepts such as screws, levers, ramps, and wedges!

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?

Red is a red blood cell. Luke is a leukocyte, or white blood cell. Patty is a platelet. What do these three have in common? They are the workers in your blood. Listen to find out why each worker is important for your body.

Surviving in the desert heat can be dangerous–from deadly shifting sands to a lack of food and water, learn how animals like the Dromedary camel uses its eyelids to shield it from swirling sand, how Sandgrouse chicks soak up water from feathers on their fathers belly, and how the kangaroo rat never takes a drink!

Enjoy this collection of stories for children about life on the farm. In "Hector Helps Out", Calliope the hen enlists the help of Hector the rooster in an effort to retain her egg. They work to pull a fast one on Farmer Bean. Also included are nine other stories about animals and living on the farm: "Hatch!", "Fresh from the Farm", "Grandpa Drives a Milk Truck", "Mem and Grandpa at the Farm Stand", "Diggory Dog", "Fleece Fiber, Yarn Sweater", "Harvest Time with Papa", "Herbert, Hurry Up", and "A Rootin' Tootin' Cowboy".

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.

Jiji and her mother take Fida, their three-month-old German shepherd puppy, to his first veterinarian visit.

Have you ever wondered why wheels are round and not triangles or squares? Try this activity to learn why wheels are the shape that they are.

Have you ever wondered what lifts a big, heavy airplane up in the sky without falling down? This article explains how their wings and air keeps planes—and birds, too—flying high! Learn how wings work just by blowing on a piece of paper in a fun experiment.

Join us as we go on a journey into the world of symmetry! Learn about the wonders of line symmetry—or reflection—as you create mirror images and watch how rotational symmetry works in this brief peek into this area of geometry.

Have you ever ridden a roller coaster? They’re a lot of fun, but a lot of physics is involved in making those rides work. The momentum built up by energy and speed keep those trains on their tracks and riders in their seats, even when they’re upside-down!

Inside every seed waits a tiny plant, ready to grow. Watch the process of a pumpkin plant from tiny seed to full-size fruit! You'll also see other plant seeds, which come in many different sizes, shapes, and colors. Some can be as big as your head, but poppy seeds are so little you can hold hundreds in one hand!

Learn about how the body processes food by following Joe's pizza lunch—from the plate to his mouth to his stomach and beyond. The nutrients from food are absorbed in the small intestine, which are delivered to rest of the body.