Book 25, Question 110 · Video
What is smog?
The word smog comes from smoke and fog. Today it mostly means a haze of ozone and tiny particles. Ground-level ozone forms when sunlight reacts with gases from vehicles and factories. Smog is thickest on hot, sunny, still days and can make it harder to breathe. Cleaner cars, better fuels, and rules for factories have helped reduce it in many cities.
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What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. What is smog?
The Big Idea
Sometimes a brown haze hangs over a city. That haze is called smog! What makes it?
The Word
Step one: The Word. The word smog comes from smoke and fog. Today it mostly means a haze of ozone and tiny particles.
Ozone
Step two: Ozone. Ground-level ozone forms when sunlight reacts with gases from vehicles and factories. Smog is thickest on hot, sunny, still days.
Breathing
Step three: Breathing. Smog can make it harder to breathe. Cleaner cars, better fuels, and rules for factories have helped reduce it in many cities.
A Closer Look
Let's take a closer look! Cars give off gases. Factories add more. Sunlight starts reactions. Heat makes it worse.
Quick Facts
Quick facts! Ozone high in the sky protects us, but at ground level it is a pollutant. Hot days have more smog. Clean energy helps. Wind clears smog.
Think Like a Scientist
Now, think like a scientist! Draw the ingredients of smog. Include gases, sunlight, and heat. Show them mixing into haze. Then show how clean energy could help. Draw a clear sky as the result.
Outro
Smog comes from smoke and fog, and today mostly means ozone and tiny particles. Ozone forms when sunlight reacts with gases from vehicles and factories, especially on hot, still days. Clean air is something we can all help protect. Science is amazing! Keep asking questions! The more you look around, the more wonders you will find, so keep your eyes open! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!