Digestion: From Food to Fuel (Part 2)

What You'll Learn

The digestive system breaks food into nutrients the body can use. Food travels from the mouth through the esophagus, stomach, and intestines, with nutrients absorbed along the way.

Key Words

reflex
immune system
hormone

Steps

Step 1 — Read

Read and learn: The digestive system breaks food into nutrients the body can use. Food travels from the mouth through the esophagus, stomach, and intestines, with nutrients absorbed along the way.

Step 2 — Do

Build your model using the materials provided.

Step 3 — Observe

Look for patterns in your observations.

Step 4 — Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What carries oxygen in the blood?