🐼 🔭 Science
Fun facts, jokes & riddles · 有趣知识 · Bilingual Chinese + English
125 item(s)
The Lungs Help Us Breathe
Explore science — The Lungs Help Us Breathe! When we breathe in, lungs take oxygen into blood. When …
👁 205 次浏览 · views
Which Is Heavier: 1 kg of Iron or 1 kg of Cotton?
Explore science — Which Is Heavier: 1 kg of Iron or 1 kg of Cotton?! One kilogram of iron and one ki…
👁 166 次浏览 · views
Neptune's Blue Color and Strong Winds
Explore science — Neptune's Blue Color and Strong Winds! Neptune is a blue ice giant with some of th…
👁 198 次浏览 · views
The Eight Planets of the Solar System
Explore science — The Eight Planets of the Solar System! Our solar system has eight planets orbiting…
👁 212 次浏览 · views
Why Moon Phases Change
Explore science — Why Moon Phases Change! The Moon goes from new to full and back in about 29 days b…
👁 176 次浏览 · views
Riddle: Runs Without Legs
Can you guess? I run fast on tracks between cities, powered by electricity or fuel, without legs. Wh…
👁 197 次浏览 · views
The Origin of Wind
Explore science — The Character '风' (Wind)! The character wind (fēng) looks like moving air. Wind sp…
👁 239 次浏览 · views
The Math Book's Little Worry
Ha ha! 数学书的小烦恼 — Why was the math book sad? It had too many problems of its own!…
👁 148 次浏览 · views
Battery Full of Energy
Ha ha! 电池充满电 — A fully charged battery said: I have full energy — but please no push-ups for me!…
👁 202 次浏览 · views
What Seeds Need to Germinate
Explore science — What Seeds Need to Germinate! Seeds need suitable warmth, water, and air to sprout…
Riddle: The Diamond in the Sky
Can you guess? I twinkle at night but am a faraway giant ball of fire, some bigger than the Sun. Wha…
👁 170 次浏览 · views
Pulleys
Explore science — Pulleys! A pulley is a grooved wheel with rope that changes pull direction. Pulley…
👁 185 次浏览 · views
Riddle: Shines Without Burning
Can you guess? I shine in the sky by day, giving Earth warmth and light, but I am not a light bulb. …
👁 271 次浏览 · views
What Is Friction?
Explore science — What Is Friction?! Friction is the force between surfaces that resists motion. Sho…
👁 208 次浏览 · views
Plants Grow Toward Light
Explore science — Plants Grow Toward Light! Plants grow toward light. Stems bend to catch more sun f…
👁 207 次浏览 · views
The Three States of Water
Explore science — The Three States of Water! Water can be liquid rivers, solid ice, or gas vapor ris…
👁 240 次浏览 · views
Muscles Help Us Move
Explore science — Muscles Help Us Move! Muscles attach to bones. When they contract, bones move so y…
👁 157 次浏览 · views
Riddle: Uses Electricity but Keeps Things Cold
Can you guess? I use electricity and stay very cold inside to keep milk and fruit fresh. What am I?…
Idiom: 'Think Before You Act'
Explore science — Idiom: 'Think Before You Act'! Idiom: 'Think Before You Act'Idiom: 'Think Before Y…
Conductors and Insulators
Explore science — Conductors and Insulators! Copper and aluminum are conductors — current flows easi…
👁 153 次浏览 · views
Riddle: Turns Night into Day
Can you guess? Plug me in and I glow, making rooms bright at night — but I am human-made. What am I?…
👁 167 次浏览 · views
Earth's Rotation and Day and Night
Explore science — Earth's Rotation and Day and Night! Earth spins like a top. The side facing the Su…
👁 152 次浏览 · views
How Many Bones Are in the Human Body?
Explore science — How Many Bones Are in the Human Body?! Adults have about 206 bones. Babies have mo…
👁 182 次浏览 · views
Idiom: 'Adapt to Circumstances'
Explore science — Idiom: 'Adapt to Circumstances'! Idiom: 'Adapt to Circumstances'Idiom: 'Adapt to C…
👁 201 次浏览 · views
