Science Grade 5 Removing Other Body Wastes

1. Removing Other Body Wastes
Science V

2. Which is the correct sequence on how
urine is eliminated?
a. kidneys-bladder-ureter-urethra
b. kidneys-ureter-bladder-urethra
c. kidneys-urethra-bladder-ureter
d. kidneys-ureter-urethra-bladder
Review

3. 1. Ask your mother or a doctor or a nurse,
why most children urinate more often on
cold days than on warm days?
2. Drink eight (8) glasses of water before-''
going to bed. Observe and count how
many times you urinated during the night.
Checking of Assignment

4. How often do you urinate?
How often do you sweat?
Have you ever wondered how these things
happen?
Removing other body wastes from out
body?
Give your idea about this.
Motivation

5. Organs of the urinary system are not
the only one that excretes wastes from the
body. Other organs like skin, lungs, and the
large intestines also remove wastes. These
wastes from the body may be in solid,
liquid or gaseous form.
Presentation

6. The liver is a large, important organ. In fact, it
is the largest organ in our bodies. Its numerous
functions make it “part” of the circulatory,
digestive, and excretory systems. Some
proteins and other nitrogenous compounds are
broken down in the liver by a process called
deamination.
Presentation

7. The liver is a large,
important organ. In
fact, it is the largest
organ in our bodies. Its
numerous functions
make it “part” of the
circulatory, digestive,
and excretory systems.
Presentation

8. Some proteins and
other nitrogenous
compounds are
broken down in the
liver by a process
called deamination.
Presentation

9. Presentation
Deamination produces
ammonia and waste
products, which can be
eliminated through
urination. As a result of
these reactions, a
nitrogenous waste called
urea is formed.

10. Presentation
Sweat which
comes out of
pores in your skin,
is a mixture of
three metabolic
wastes: water,
salts, and urea.

11. Presentation
The body produces carbon dioxide as the
gaseous waste product. These are carried
by the blood to the lungs, which is expelled
by exhaling through the nose or mouth.

12. Presentation
Defecation is the
elimination of solid
undigested food from
the body. It is the
function of the rectum
as part of the
digestive system.

13. Application
Fill up the table below.
Other Excretory Organs Waste Materials Where it passes out
a.
b.
c.

14. Evaluation
Write the letter of your answer.
1. Which system gets rid of body wastes?
A. excretory C. respiratory
B. reproductive D. digestive
2. Undigested food is stored in the ______.
A. small intestine C. liver
B. large intestine D. stomach

15. Evaluation
3. Which is NOT an excretory organ?
A. kidneys C. stomach
B. lungs D. skin
4. Which body waste is excreted through
the skin.
A. sweat C. scar
B. stool D. Carbon dioxide

16. Evaluation
5. Which of the following pairs does not
match?
A. solid waste – digestive system
B. liquid waste – skin
C. gaseous waste – respiratory system
D. human waste – urinary system

17. Assignment
Identify some common ailments of
the urinary system and its symptom/s
and treatment