This document discusses the digestive system and its key processes of ingestion, absorption, assimilation, and excretion. It begins with an overview of the major parts of the digestive system, including the mouth, tongue, saliva, esophagus, stomach, small intestine, liver, large intestine, rectum. It then discusses the roles of these organs in breaking down food, absorbing nutrients, and excreting waste. The document is intended to teach a lesson on the digestive system as part of a science curriculum.

1. MELCS: Explain ingestion, absorption,
assimilation and excretion; (S8LT-IVb-13)
MODULE 1
DIGESTIVE SYSTEM
11/24/2023
1
RONNIE M. ABSALON,
JR.
Science Teacher
QUARTER 4

2. Parts of
the
Digestive
System

3. PRE-ASSESSMENT

4. PRE-ASSESSMENT

5. PRE-ASSESSMENT

6. ACTIVITY 1 CONNECTION
SYSTEM
1. Takes oxygen from air you breathe in and sends it to the blood.
__________________.
2. It is connected to the nerves that send signals throughout your body, without me
you cannot control your thoughts, movements, decisions and memories.
__________________.
3. Makes digestive juices to help the small intestine break down food.
_________________.
4. A bean shaped which is responsible in eliminating waste products from the blood
and produce urine. _______________.
5. Made up of strong muscles that pumps blood through your body. My size is as
size of your fist, I am located near the center of your chest. _____________.
6. Mix food when you eat with chemicals made by your body, then chum up your
food into smaller parts and send it to small intestine. ______________
7. The one which give support and protection to your organs. ______________
8. Absorb the nutrients that your body needs from your food and I put it on your
bloodstream so your body can use it. _________________
9. It work with bones to provide movement, strength and power. _____________
10. It is the place where urine is stored until it is eliminated from your body.
_______________ takes place.
Procedure: Identify the organs of the human body that was being described and pick
your answer from the word bank.
LUNGS
BRAIN
PANCREA
S
KIDNEY
HEART
STOMACH
BONES
SMALL INTESTINES
MUSCLE
URINARY
BLADDER

7. FOOD ENERGY
DIGESTION SYSTEM
MOUTH FOOD
TOUNGUE
SALIV
A
SWALLO
W ESOPHAGU
S
PHARYNX
STOMAC
H
ACID
SMALL
INTESTINE
ABSORBE
D
LIVER
LARGE INTESTTINE LIQUIDS
WASTE
RECTUM

8. C
F
B
A
J
D
H
D
I
F

9. POST-ASSESSMENT

10. POST-ASSESSMENT

11. POST-ASSESSMENT