VIRUSES & BACTERIA

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What made you sick? 🤧

Two tiny suspects. Find out who!

1

Zoom In! 🔎

🖐️ 🔬
🖐️ 🧱 🦠 😈
👋 Your hand. Looks clean!
2

Meet Them!

👆 Tap the glowing dots!

🦠 BACTERIUM
👋 Tap a dot!
😈 VIRUS
👋 Tap a dot!

🔑 Key Difference

ALIVE 💚 🍕 eats · 🏊 moves · 👶 grows
≠
NOT alive 🚫 🔑 needs YOUR cell to copy
3

Side by Side ⚖️

🦠 Bacterium
~1 μm
→ 100× smaller
😈 Virus
~100 nm
Can it…?🦠 Bacterium😈 Virus
Eat? 🍕✅❌
Move? 🏊✅❌
Grow? 📈✅❌
Reproduce alone? 👶✅❌
ALIVE? 💚✅❌
Soap helps? 🧼✅⚡
4

How Tiny? 📏

🐕 Bacterium
= a DOG
100×→
🔮 Virus
= a MARBLE
🟰
😈😈😈😈😈😈😈😈😈😈 😈😈😈😈😈😈😈😈😈😈

100 viruses fit inside 1 bacterium! 😱

1 viruses fit!

A virus is about 100× smaller than a bacterium!
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Multiply! ✂️

🦠 Bacterium: splits alone!

1 bacterium

1→2→4→8… super fast! 🚀

😈 Virus: breaks into YOUR cell 🥷

Key finds the lock 🔑

Slips INSIDE 🥷

Makes HUNDREDS! 😱

POP! You feel sick 🤧

6

Who's Who? 🫙

…
🤔 Which jar?
7

Not All Bad! 🥰

Most bacteria = FRIENDS! Tap to flip!

?
🥛 YoghurtTurns milk!
?
🍕 GutHelps digest!
?
🍂 SoilCleans up!
Are ALL germs bad?
8

Wash! 🧼

Rub the hand → wash germs away!

14 germs left!

Soap BREAKS the virus's shell ⚡ and WASHES bacteria away 🌊!
9

Quiz! ⭐

For grown-ups 👩‍🔬

Bacterium: single living cell, feeds/moves/grows/reproduces independently. Virus: ~100× smaller, not a cell, replicates only by hijacking host cell. Many bacteria beneficial. Hand-washing disrupts viral envelopes.

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