Instructions
Let's explore the amazing world of digestion! First, look at how different human and starfish stomachs are. Then, help Milly complete her Digestion Mission by figuring out how food travels and what the body's digestive helpers do!
Stomach Showdown: Human vs. Starfish
Look at the two diagrams below. They show just how different stomachs can be!
Human Tummy
(Esophagus) →
Food goes here next
(Small Intestine)
This stomach stays inside the body to mix food with digestive juices.
Starfish Tummy
(inside body) ↓ Mouth ↓
(goes outside!)
This amazing stomach can be pushed out of the mouth to digest a meal on the spot!
Milly's Digestion Mission!
Part 1: Food's Fantastic Journey
Milly, the parts of each animal's digestive system are mixed up! Can you draw a line to connect them in the correct order? Start at the Mouth for each one.
| Human | Bird | Cow |
|
Stomach Small Intestine Mouth Esophagus
|
Crop (stores food) Intestine Mouth Gizzard (grinds food)
|
Mouth Esophagus Rumen (Big 1st Stomach) Small Intestine
|
Part 2: Meet the Digestive Helpers!
These helpers are liquids in the body that break down food. Draw a line to match each helper to its special job.
|
Saliva Stomach Acid Bile
|
Helps break down fatty foods like butter and oils. Kills germs and starts breaking down food in the stomach. This is in your mouth! It moistens food and starts digestion.
|
ANSWER KEY
Part 1: Food's Fantastic Journey - Correct Order
- Human: Mouth → Esophagus → Stomach → Small Intestine
- Bird: Mouth → Crop → Gizzard → Intestine
- Cow: Mouth → Esophagus → Rumen → Small Intestine
Part 2: Meet the Digestive Helpers! - Correct Matches
- Saliva → This is in your mouth! It moistens food and starts digestion.
- Stomach Acid → Kills germs and starts breaking down food in the stomach.
- Bile → Helps break down fatty foods like butter and oils.