Science 5 Useful and Harmful Materials

1. Class Observation
in a New Normal

2. 1. Empty bottles

3. 2. Fruit peelings

4. 3. Broken glass

5. 4. Empty candy wrappers

6. 5. Expired medicines

7. 1. useful
2. useful
3. harmful
4. useful
5. useful

11. seminal
vesicles
Prostate
gland
Cowper’s
gland
epididymis
scrotum
testes/testis
glans
urethra
penis
vas
deferens

12. penis

13. scrotum

14. testes

15. epididymis

16. urethra

17. seminal
vesicles

18. vas
deferens

19. Cowper’s
gland

20. prostate
gland

21. glans

22. • Directions: Identify the parts of a male reproductive system
that will complete the following sentences. You may find the
words written horizontally or vertically in the word search
puzzle. Write your answers on your paper.

23. Vertically
1. The _________ is the external male organ which allows the passage of
the semen.
2. The skin covering of the testes which is a sac-like structure is called
__________.
3. The ________________ is a narrow- coiled tube which stores immature
sperm cells.
4. The _____________ protrude outside the body and produces sperm
cells.
5. The ____________ serves as a passageway of both urine from the
urinary bladder and semen from the glands.
6. The tip of the penis is called ____________.
Horizontally
7. One of the two pea-sized organs found beneath the prostate gland that
neutralizes the acidic urine in the urethra is the ____________ gland.
8. The ______________ serves as passageway of the sperm cells
released from the testes.
9. The _______________ are sac-like pouches attached to the vas
deferens which supply the sperm cells with a fluid rich in fructose to keep
them active.
10. The _________________ is located between the bladder and the

24. Directions: Determine the parts of the reproductive system by
arranging the jumbled letters in each item. The description
opposite the jumbled letters will help you come up with the
correct word.
1. SPINE It is the external male organ.
2. EESSTT They produce sperm cells.
3. THERAUR It is the passageway of both
urine and semen
4. TOASTERP ADLNG It secretes fluid that is mixed
with sperm cells.
5. MAILSEN ESCLIVE It is a temporary
storage of sperm cells
before they are released
to the urethra.

26. Give the male reproductive system.
__________1. It is the external male organ which is covered by
foreskin.
__________2. This is a pair of pouch-like sacs that serves as skin
covering of the testes.
__________3. It is the gland that produces sperm cells, and male sex
hormones.
__________4. It is a narrow-coiled tube that stores immature sperm
cells.
__________5. It is the passageway of both urine from the urinary
bladder and semen from the glands.

27. Find the meaning of the following
words.
1. ovaries
2. uterine lining
3. vagina
4. cervix
5. vulva
6. uterus
7. fallopian tube
8. endometrium

28. #keepsafeeveryone