Match the picture to the correct word in this educational puzzle worksheet.

To solve the picture puzzle, we need to identify the animal or object in each image and then determine which word in the corresponding row is the odd one out. The odd one out will be the word that does not belong with the others in its category.

Step-by-Step Solution:

1. Row 1: Elephant, Watch, Apple
- Images: Elephant, Watch, Apple
- Words: Elephant, Watch, Apple
- Explanation: "Elephant" and "Apple" are both nouns representing living things (animal and plant). "Watch" is an object, not a living thing.
- Odd one out: Watch

2. Row 2: Horse, Egg, Key
- Images: Horse, Egg, Key
- Words: Horse, Egg, Key
- Explanation: "Horse" and "Egg" are related to animals (horse is an animal, egg is from an animal). "Key" is an object unrelated to animals.
- Odd one out: Key

3. Row 3: Nail, Lion, Mouse
- Images: Nail, Lion, Mouse
- Words: Nail, Lion, Mouse
- Explanation: "Lion" and "Mouse" are animals. "Nail" is a body part, not an animal.
- Odd one out: Nail

4. Row 4: Fish, Crab, Butterfly
- Images: Fish, Crab, Butterfly
- Words: Fish, Crab, Butterfly
- Explanation: "Fish," "Crab," and "Butterfly" are all animals. However, "Butterfly" is an insect, while "Fish" and "Crab" are aquatic creatures. This makes "Butterfly" the odd one out based on habitat.
- Odd one out: Butterfly

5. Row 5: Cat, Worm, Corpse
- Images: Cat, Worm, Corpse
- Words: Cat, Worm, Corpse
- Explanation: "Cat" and "Worm" are living creatures. "Corpse" refers to a dead body, which is not living.
- Odd one out: Corpse

6. Row 6: Bus, Kite, Frog
- Images: Bus, Kite, Frog
- Words: Bus, Kite, Frog
- Explanation: "Bus" and "Kite" are objects made by humans. "Frog" is a living creature.
- Odd one out: Frog

7. Row 7: Bird, Rose, Pen
- Images: Bird, Rose, Pen
- Words: Bird, Rose, Pen
- Explanation: "Bird" and "Rose" are natural elements (animal and plant). "Pen" is a human-made object.
- Odd one out: Pen

8. Row 8: Car, Bat, Pan
- Images: Car, Bat, Pan
- Words: Car, Bat, Pan
- Explanation: "Car" and "Pan" are objects made by humans. "Bat" is an animal.
- Odd one out: Bat

9. Row 9: Baby, Owl, Bus
- Images: Baby, Owl, Bus
- Words: Baby, Owl, Bus
- Explanation: "Baby" and "Owl" are living beings. "Bus" is a vehicle, not a living being.
- Odd one out: Bus

10. Row 10: Goat, Teeth, Igloo
- Images: Goat, Teeth, Igloo
- Words: Goat, Teeth, Igloo
- Explanation: "Goat" and "Teeth" are related to living beings (animal and body part). "Igloo" is a structure built by humans.
- Odd one out: Igloo

11. Row 11: Tiger, Ink, Grapes
- Images: Tiger, Ink, Grapes
- Words: Tiger, Ink, Grapes
- Explanation: "Tiger" and "Grapes" are natural elements (animal and fruit). "Ink" is a substance used for writing, not a natural element.
- Odd one out: Ink

12. Row 12: Zebra, Door, Leaf
- Images: Zebra, Door, Leaf
- Words: Zebra, Door, Leaf
- Explanation: "Zebra" and "Leaf" are natural elements (animal and plant part). "Door" is a man-made object.
- Odd one out: Door

Final Answer:

The odd words in each row are:
1. Watch
2. Key
3. Nail
4. Butterfly
5. Corpse
6. Frog
7. Pen
8. Bat
9. Bus
10. Igloo
11. Ink
12. Door

Boxed Answer:
\[
\boxed{\text{Watch, Key, Nail, Butterfly, Corpse, Frog, Pen, Bat, Bus, Igloo, Ink, Door}}
\]