Download Answer Key of Revision (Topic 3)

Kingdom Schools
Science Department
Grade 5- Term 2
Name:_______________
Date:________________
Section:______________
Answer Key of Revision (Topic 3)
Nb
Lesson
Assessed Skills
Test Items
Identify The Circulatory system with its structures
3A
3-1
3B
3-2
and function.
Q2 (a ,e), Q4 (1,6,7), Q6, Q8
Identify Respiratory System with its structures and
function.
Q2 (b), Q3,Q4 (2,3), Q5
Identify the Digestive and the Urinary system with
their structures and function.
Q2(c, d), Q4 (4,5), Q7.
3-1,32,3-3
Explain how human body’s systems are interrelated
Q4 (f)
3-1,32,3-3
Define vocabulary words (Veins, arteries, capillary,
3C
3-3
3D
3E
valves, bronchioles, trachea , alveoli, esophagus)
Page 1
Q1.
Kingdom School Teacher: Lama El Ghali
Q1. Match the vocabulary words on the left with the appropriate definition on the
right.
Veins
 Are where oxygen enters the blood and
CO2 leaves the blood.
Esophagus
 Are blood vessels that take blood from
the cells to the heart
Bronchioles
 Smallest kind of blood vessel
Trachea
 Are blood vessels that carry blood away
from your heart to other parts of the
body
Valves
 A tube that carries food from the mouth
to the stomach
Arteries
 Two branches called bronchi branch into
smaller tubes called
Capillary
 Is a tube that carries air from the larynx
to the lungs
Alveoli
 Flaps that act like doors to keep blood
flowing in one direction
Page 2
Kingdom School Teacher: Lama El Ghali
Q2.Answer the following questions:
a. List the components of the blood.
WBC, RBC, Platelets and plasma
b. What is the role of the mucus and of the trachea?
The mucus traps dust and germs.
The trachea carries air from the larynx to the lungs.
c. What is the main role of bacteria in the digestive system?
They are helpful bacteria which help keep out other bacteria that cause
disease. They also make vitamins that your body uses.
d. What structure above the esophagus prevents food from entering the wrong
tube?
Epiglottis
e. What are the three types of blood vessels?
Veins, Arteries, Capillaries
f. Explain how the respiratory system and the circulatory system are related.
The respiratory system gets the oxygen as far as the tiny air sacs inside your
lungs. Then in the Circulatory system, blood picks up the oxygen there and
carries it to all your cells-all the way down to your toes.
Q3. Put in order of 1 to 5 the steps of the air pathway:
1
3
Air enters through the nose or mouth
5
4
2
To the larynx
Nose traps dust and germs by the help of hair and mucus.
Air passes from the sinus to the throat
Sinus warm and moisture the air
Page 3
Kingdom School Teacher: Lama El Ghali
Q4.Read each question and choose the best answer.
1. Which type of blood vessel takes blood from cells back to the heart ?
a. Vein
b. Artery
c. Capillary
d. Arteriole
2. When you hold your breath, your brain sends a message to the diaphragm
and rib muscles telling them to breath. Why is this message sent from the
brain?
a. Oxygen builds up in the lungs.
b. Oxygen builds up in the blood.
c. Carbon dioxide builds up in the lungs.
d. Carbon dioxide builds up in the blood.
3. Round the wall of each air sac in the lungs is a web of
a. Veins
b. Valves
c. Arteries
d. Capillaries
e. When food is exposed to stomach fluids
4. Which organs send chemicals to the small intestine to help digest food
a. Kidney and liver
b. Liver and stomach
c. Pancreas and liver
d. Pancreas and kidneys
5. The transportation system of the body is the
a. Urinary system
b. Digestive system
c. Respiratory system
d. Circulatory system
Page 4
Kingdom School Teacher: Lama El Ghali
6. Which of the following will the body make in greater numbers in response to
an infection?
a. Plasma
b. Platelets
c. Red blood cells
d. White blood cells
7. The difference of blood color (bright red and dark red) is because:
a. Bright red blood color carries waste and carbon dioxide while dark red
color blood carries oxygen
b. Bright red color blood carries oxygen while dark red color blood carries
carbon dioxide.
Q5. Write beside each picture what happens to the diaphragm as we inhale and as
we exhale.
When we inhale, Diaphragm moves down
When we exhale, Diaphragm moves up
Page 5
Kingdom School Teacher: Lama El Ghali
Q6. Fill in the following chart:
Right Atrium
Right
Right Ventricle
Heart
Left Atrium
Left
Left Ventricle
Page 6
Kingdom School Teacher: Lama El Ghali
Q7.In the below flow diagram, write the pathway of food as it goes into the
digestive system
Mouth
esophagus
Stomach
Small Intestine
Large intestine
Page 7
Kingdom School Teacher: Lama El Ghali
Q8.Draw arrows showing the blood flow from the body to the heart then back to
body parts.
Blood coming from the
body
Lungs
Science Teacher: Mrs. Lama EL Ghali
Page 8
Kingdom School Teacher: Lama El Ghali