PRE-TEST IN SCIENCE  6

Directions: Read each questions or situations carefully. Then select the letter of the best answer.

1. It is formed when substances are combined.
   1. matter mixture                    c. solid               d. liquid
2. The substance being dissolved is the _________.
3. solute solvent                     c. colloid         d. matter
4. A mixture in which particles can be distinguished is called ________.
5. Solution homogeneous mixture
6. Colloid heterogeneous mixture
7. The liquid components dry up when heated or exposed under the sun in this process of separating mixtures.
8. evaporation decantation             c. filtration                  d. sieving
9. This process involves separating solid particles from a liquid substance using a piece of cloth.
10. decantation filtration                  c. evaporation              d. using a magnet
11. Which of the following is the main ingredient of halo-halo?
12. crushed ice B. ice cream                 C. milk             D. sweetened fruits
13. Which of the following is a heterogeneous mixture?
14. coffee B. noodle soup C. orange juice D. sugar solution
15. Which of the following is not soluble in water?
16. moth balls B. salt                           C. sugar                        D. vinegar
17. Which of the following liquids do not mix with water?
18. liquid soap B. oil                            C. soy sauce                 D. vinegar
19. Colloids are ______________________________________.
20. homogeneous mixtures that seem to be heterogeneous.
21. heterogeneous mixtures that seem to be homogeneous.
22. suspensions that look like solutions
23. solutions that look like colloids
24. Cloud and fog are what kind of colloid?
25. liquid dispersed in solid B. gas dispersed in liquid
26. gas dispersed in solid D. liquid dispersed in gas
27. Which of the following colloids is an example of a sol?
28. whipped cream B. milk                         C. froth            D. paint

 

13. If there were no bones, the muscles would drop to the ground. Which function of the bone is shown

Here?

1. protects the heart and lungs
2. provides leverage for movement of muscles
3. forms a strong case for delicate organs
4. provides anchor to which muscles are attached

 

14. Which organs are protected by the rib cage?
15. heart and lungs                 C. ovaries and testes
16. brain and spinal cord         D. small and large intestines

 

15. Which could be the functions of the muscular system?

 

1. It gives shape in our body
2. It allows us to move

III. It supports and makes our skeleton in the hands and other body parts steady.

1. It provides the structural framework for the body

 

 

1. I and II         C. I, II,and III
2. II and III                                 D. I, II, III and IV

 

16. Which of the statements correctly describe the general functions of

Skeletal system?

 

1. It gives shape to the body
2. It serves as framework of the body

III. It protects the internal organs of the body

1. It converts energy, which enables the body to move

 

1. I, II, IV C. II, III, IV
2. I, II, III            D. I, III, IV
3. What is the J-shaped muscular bag that stores the food you eat, breaks it down into tiny pieces.
4. Mouth   Stomach                C. Liver          D. Large Intestine
5. In which part of the digestive system does digestion ends?
6. Stomach                               Small Intestine
7. Large Intestine Rectum

 

19. What body system allows a person to breath and exchange oxygen and carbon dioxide

throughout the body?

1. Digestive System                     Respiratory System
2. Circulatory System Nervous System

.

20. What is the flap of tissue found at the end of the pharynx that closes over larynx to prevent

the food and water from entering to the trachea?

1. Cilia Epiglottis                C. Tonsils                D. Voice Box
2.   Which of the following is not a function of the circulatory system?
3. Prepares food for digestion
4. Supplies nutrients to all body cells
5. Collects wastes from all body cells
6. Supplies oxygen to all body cells

 

22. Why do oxygenated and deoxygenated bloods not get mixed up inside the heart?
23. There are blood vessels in the heart
24. There are valves in the heart
25. There are separate chambers in the heart
26. The deoxygenated blood is left in the lungs
27. To which group do chicken and ducks belong?
28. Fish Reptiles          C. Birds        D. Amphibians
29. Which of these animals is a mollusk?
30. Squid Corals            C.  Spiders    D.  Lobsters
31. All of these are arthropods EXCEPT ___________.
32. Ant clam                     C. butterfly            D.  centipede

 

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