LONG QUIZ IN SCIENCE V
I. CHOOSE THE LETTER OF YOUR ANSWER.
1. Which is a not an example of matter?
a. fire b. light c. clay d. human heart
2. What evidence shows a chemical change?
a. precipitate b. gas or smoke c. a new substance d. All of the choices
3. What will happen if a liquid is exposed to a very low temperature?
a. It will melt b. It will sublime c. It will freeze d. It will evaporate
4. Which of the following situations is an example of evaporation?
a. formation of ice b. melting of ice c. formation of dews d. drying of clothes
5. When water is boiled, part of it becomes water vapor. Which of the following describes this process?
a. physical change b. change of energy c. chemical change d. change in molecule
6. What is one BAD effect of chemical change to foods?
a. food might be spoiled b. food might get less c. food might not be cooked d. food might get softer
7. Which statement or statements below is/are true about air?
[A] Air is a mixture of several gases.
[B] The normal components of air are oxygen, carbon dioxide, water vapor, nitrogen and inert gases.
[C] Dust is an accidental component of air.
a. A only b. B & C only c. A & B only d. A, B and C
8. Why do we usually open the windows to get rid of odors in a room?
a. to let sunlight enter and absorb the odor
b. to allow odor to spread out in the room
c. to let air to enter and carry away the odor
d. to allow more air to enter and mix with the odor
9. When cooking rice, mists or clouds form above the cooking pot. What are the mists made of?
[A] water from the boiling rice. [C] water and other substances from the surrounding air.
[B] water from the surrounding air.
a. A only b. B only c. A & B only d. A & C only
10. Kitchen utensils are often made of aluminum. Which one of the reasons is wrong?
a. Aluminum is a poor conductor of heat. c. Aluminum does not rust.
b. Aluminum is malleable d. Aluminum does not dissolve in water.
11. Which of the following is the property of a material enabling it to be drawn into wire?
a. elasticity b. ductility c. brittleness d. hardness
12. Which of the following is the ability of to stretch and then returns to its original shape after?
a. elasticity b. ductility c. solubility d. brittleness
13. Which of the following is the ability to let heat and electricity to pass through them?
a. conductivity b. ductility c. flexibility d. solubility
14. Which of the following is the ability of a material to be bent without breaking?
a. conductivity b. ductility c. combustibility d. flexibility
15. Which of the following is the ability of a material to easily decompose?
a. conductivity b. ductility c. malleability d. biodegradability
16. Which of the following is an example of physical change?
a. Mixing baking soda and vinegar that causes bubbles. c. burning a piece of paper on fire and leaves ashes.
b. A glass cup falls and shatters on the ground. d. Baking a birthday cake for your mother.
17. If the composition of a substance remains and the appearance or shape of a substance changes it is called a _____.
a. Chemical change b. Physical change c. mechanical change d. ceramic change
18. What characteristic best describes what happen during a physical change?
a. Composition changes b. Composition remains c. Form stays the same d. Mass is lost
19. When silver metal comes in contact with sulfur, silver sulfide forms and the silver appears darker. This is a _______.
a. change of form b. chemical change c. change of state d. physical change
20. Which material is good conductor of heat and electricity?
a. rubber band b. copper wire c. plastic d. wood
21. Which of the following is not example of brittle material?
a. egg shell b. ceramic plate c. glass d. tin can
22. Wood is made into chopping boards. What property does wood have?
a. Hardness b. brittleness c. elasticity d. softness
23. Which of the following is not biodegradable material?
a. Dead animal b. dried leaves c. plastic spoon d. paper
24. Which property of solid material does the garter has?
a. elasticity b. ductility c. brittleness d. hardness
25. A solid brown metal is added to a clear acidic solution. A white powder appears and the acid solution becomes
cloudy. Which type(s) of change have/has occurred?
a. physical change b. change of energy c. chemical change d. change in molecule
II. IDENTIFY THE PROPERTY OF MATERIAL DESCRIBED IN EACH NUMBER. Choose your answer inside the box.
____________1. property of a material enabling it to be drawn into wire
____________2. ability of a material to burn
____________3. property of a material to be hammered into thin sheets
____________4. ability of a material to easily decompose
____________5. ability to let heat and electricity to pass through them
____________6. ability of a material to be bent without breaking
____________7. ability of to stretch and then returns to its original shape after
biodegradability
ductility flammability malleability
brittleness conductivity flexibility solubility
combustibility elasticity opacity hardness
III. Write BIODEGRADABLE or NON-BIODEGRADABLE.
_______________1. metal spoon _______________ 5. Used diapers
_______________2. Broken glass _______________ 6. Animal poops
_______________3. dead animals _______________ 7. Dried leaves
_______________4. plastic cups _______________ 8. banana peel
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