Color the objects based on whether they belong to land, air, or water.

Let’s go step by step to figure out where each object belongs — Land, Air, or Water — and what color to use based on the key.

The key says:
- Land → green (and has a dashed line symbol)
- Air → yellow (and has cloud symbols)
- Water → blue (and has wave symbols)

Now let’s look at each object one by one:

1. Sailboat – It floats on water → Water → blue
2. Hot air balloon – It flies in the sky → Air → yellow
3. School bus – Drives on roads → Land → green
4. Submarine – Goes underwater → Water → blue
5. Car – Drives on land → Land → green
6. Helicopter – Flies in the air → Air → yellow
7. Motorcycle – Rides on land → Land → green
8. Jet ski – Rides on water → Water → blue
9. Rowboat with oars – Floats on water → Water → blue
10. Baby stroller – Pushed on sidewalks/land → Land → green
11. Airplane – Flies in the air → Air → yellow
12. Delivery truck – Drives on roads → Land → green
13. Rocket – Launches into the sky/space → Air → yellow

Let’s double-check:
- All land vehicles: bus, car, motorcycle, stroller, truck → 5 items → green ✔
- All air vehicles: hot air balloon, helicopter, airplane, rocket → 4 items → yellow ✔
- All water vehicles: sailboat, submarine, jet ski, rowboat → 4 items → blue ✔

Everything matches the categories correctly.

Final Answer:
Color each object as follows:
- Sailboat: blue
- Hot air balloon: yellow
- School bus: green
- Submarine: blue
- Car: green
- Helicopter: yellow
- Motorcycle: green
- Jet ski: blue
- Rowboat: blue
- Baby stroller: green
- Airplane: yellow
- Delivery truck: green
- Rocket: yellow