🪨
SOLIDS
- Keep their own shape
- Hard, soft, rough, smooth
- 🪨 Rocks, wood, ice
- Can hold, stack, break
💧
LIQUIDS
- Take container's shape
- Flow and pour
- 🥛 Milk, water, juice
- Hard to hold without a container
💨
GASES
- Fill all available space
- Usually invisible
- 🎈 Air in balloon
- All around us always
🔍
PROPERTIES
- Words to describe matter
- Color, texture, hardness
- Flexible or rigid?
- Heavy or light?
⚠️
No Solids
Nothing to build with
⚠️
No Liquids
Can't drink or cook
⚠️
No Gases
No air to breathe
⚠️
No Properties
Can't describe the world
🌡️ Water can be solid, liquid AND gas on Earth
🪨 Diamonds are the hardest solid known
🫧 Soap bubbles are gas trapped in liquid film
🌊 Oceans hold 97% of Earth's water