Science
Why Do Baby Teeth Fall Out?
Have you ever wondered why a perfectly good tooth suddenly becomes loose and wiggly?
A new permanent tooth develops underneath the baby tooth.
Welcome to Loopy Doopy — where little ideas get room to grow.
Loopy Doopy Learning Library
Little questions can lead to big discoveries.
Why do baby teeth fall out? Why does the Moon seem to follow our car? Why does one tiny letter change the sound of a word?
At Loopy Doopy, we turn everyday questions into simple, fun learning adventures.
Pick a topic. Ask why. Start exploring.
Explore Science
Wonder. Ask. Discover.
Science is everywhere - inside our bodies, in animals, in the kitchen, in nature and even in the air around us.

Science
Have you ever wondered why a perfectly good tooth suddenly becomes loose and wiggly?
A new permanent tooth develops underneath the baby tooth.
Science
A cobra is venomous. A poison dart frog is poisonous. Carbon monoxide is toxic. But what is the difference?
Venom is actively delivered by an animal through a bite, sting or similar specialized structure.
Science
You are not sad. So why do your eyes water when someone cuts an onion?
Cutting an onion breaks open its cells and starts chemical reactions that release an irritating substance into the air.
Explore English & Language
English has patterns, surprises and strange little rules. Let’s figure them out.
Discover phonics, vocabulary, grammar and everyday English through simple examples.

English & Language
How can one tiny E completely change a word?
Look at these examples: cap → cape, kit → kite, hop → hope, cub → cube.
English & Language
Do all smells have the same name?
Coffee can have an aroma. Flowers can have a fragrance. Lemon can smell citrusy. Mint can smell minty.
English & Language
Why are we IN a car but ON a bus?
We often use IN for smaller enclosed vehicles such as a car or taxi.
Explore Math
Math is not only in a workbook. It is everywhere.
We use math in shopping, cooking, time, games, building and patterns all around us.

Math
The digit looks the same. Why does its value change?
7 = 7 ones. 70 = 7 tens. 700 = 7 hundreds.
Math
How can we compare two three-digit numbers quickly?
Start by comparing the largest place value. 368 and 386 both have 3 hundreds.
Math
2, 4, 6, 8, 10... What are we really doing?
Skip counting helps us count equal groups faster.
Explore General Knowledge
Learn a little more about our amazing world every day.
Explore the world through simple questions about Earth, places, maps and symbols.

General Knowledge
Why does the sky become dark every day?
Earth rotates on its axis.
General Knowledge
Why do we experience spring, summer, fall and winter?
Earth travels around the Sun while its axis is tilted.
General Knowledge
How is Earth’s land commonly divided?
The seven-continent model identifies Asia, Africa, North America, South America, Antarctica, Europe and Australia.
Explore Our World
Look up. Look down. Look around.
Our planet is full of amazing things waiting to be explored.

Our World
Sunlight looks white. So why does the sky look blue?
Sunlight contains many colors.
Our World
How does white sunlight become a rainbow of colors?
Sunlight enters tiny water droplets. The light bends, reflects inside the droplet, and bends again as it leaves.
Our World
Have you ever felt as though the Moon is following your car?
Nearby trees, houses and road signs appear to move quickly because they are close to us.
Explore Fun Facts
Quick questions. Surprising answers.
Short facts designed to spark the next question.

Fun Facts
Children normally have 20 primary or baby teeth.
Fun Facts
The distinctive earthy smell associated with rain falling on dry ground is called petrichor.
Fun Facts
Some animals, including cats and owls, are much better adapted than humans to seeing in low-light conditions.
Explore Create & Try
Don’t just learn it. Try it!
Turn ideas into hands-on mini challenges.

Create & Try
With a grown-up, safely explore smells around your home.
Can you find something that smells sweet, citrusy, minty, pungent, earthy or fragrant?
Create & Try
Turn reading into a word hunt.
Find a favorite book and look for words ending in E.
Create & Try
Do you have a wiggly tooth?
Draw what you think is happening underneath it.
Learn with Loopy Doopy. Watch short, colorful learning videos that turn curious questions into simple explanations.
Kids ask some of the best questions. Have you ever wondered why popcorn pops, why stars twinkle, why flamingos are pink, why we dream, why seawater is salty, why dogs wag their tails, why ice floats or why birds migrate? Every great discovery starts with a question.
Children are naturally curious. They ask: Why? How? What happens if...? Loopy Doopy starts with those questions.
Our goal is to explain concepts simply, visually and accurately while encouraging children to keep wondering, observing and exploring.
We combine simple explanations, visual learning, everyday examples, short educational videos, questions, activities and creative challenges.
Because learning does not always begin with memorizing an answer. Sometimes it begins with simply asking: “Why?”
One question can lead to a whole new discovery. Look around. Ask questions. Try something. Learn something new. Then ask another question.
Loopy Doopy — Let Kids Explore.