Download Science revision for primary 4 th

Cairo Governorate
East Nasr city Administration
AMS
AlsunModern School
Alsun Modern School
Science revision for primary 4th
1-complete
1- Starch digestion starts in ………………………..
2- the length of the digestive canal is about …………………. Meters while the
length of the small intestine is about ……………
3- --------------------- is a common cavity between digestive system and
respiratory system.
4- Small intestine is divided into 2 parts which are -------------------- and ---------------------------5- ---------------------- make complete digestion and absorption.
6- Salivary gland secretes -------------------------- that helps in digestion of --------------------------7- Liver secretes -------------------- that helps in digestion of ----------------------------------8- -----------------------,---------------- and ------------------- are from digestive canal
supplementaries
9- ----------------- and ------------------ are two juices poured in duodenum.
10--------------------------absorbs water from food remains
2- Choose :
1- ………………….. is a process of changing food from a complex form into a
simple one to let the body get benefit
a)Absorption
b) digestion
c)Reproduction
d) Respiration
2- The system in the human body is composed of a group of …………………….
a)Organs
b)Tissues
c) Different cells
d)Similar cells
3- In adults , each jaw in the mouth has …………….. teeth
a)10
b)20
c) 16
d)32
4- Digested food is absorbed in the ………………..
a)Esophagus
b)Stomach
c)Small intestine
d)Large intestine
5- stomach secretes ---------------------- juice
a) Bile juice
b) pancreatic juice
c)saliva
d) gastric juice
3- Write the Scientific term:
1- A liquid that is secreted in the mouth and helps in the digestion of
starch(………………)
2- the organ that secretes bile juice (…………………..)
3- A tube starts from the end of the small intestine and ends with anus
(…………….)
4- The system that is responsible for sensation. (…………………………)
5- The system that is responsible for producing new individuals .
(………………………………..)
6- The system that carries the transport process. (…………………………)
7- The system that carries digestion and absorption. (……………………….)
8- The system that carries out the process of respiration. (………………………..)
9- The system that gets rid of harmful substances. (……………………)
4-label the following
1-……………………………………………
2-…………………………………………….
3-…………………………………………….
4-…………………………………………….
5-…………………………………………….
6-……………………………………………..
7-……………………………………………..
8-………………………………………………
9-……………………………………………….
10-………………………………………………
11-……………………………………………….
12-……………………………………………….
5-give reason for
1-bile juice is very important
…………………………………………………………………………………………………………….
2-you must not eat fast meals
…………………………………………………………………………………………………………
3-Small intestine is very important
……………………………………………………………………………………………………………
4-Stomach digests proteins
…………………………………………………………………………………………………………..
5-You feel sweety when you chew a piece of bread
………………………………………………………………………………………………………….
6-Write one function
1- Incisors and canines
………………………………………………………………………………………………………………………….
2-Molars
……………………………………………………………………………………………………………………………
3-Saliva
………………………………………………………………………………………………………………………………..
4-Tongue
……………………………………………………………………………………………………………………………………..
7-What happen when
1-There is no tongue in mouth
……………………………………………………………………………………………………………………………………..
2-The liver doesn’t secrete bile juice
……………………………………………………………………………………………………………………………………
3-There is no saliva in mouth