2. Which of the following is NOT a state of matter?
a. solid
b. gas
c. liquid
d. mass
3. Which TWO properties best describe an egg?
a. soft
b. bendable
c. smooth
d. breakable
4. It is the change of matter in form only not in composition
c. Chemical change
a. Physical change
b. Environmental change
d. None of the above
5. Which is an example of physical change?
a. freezes to ice
c. Naphthalene balls turn to vapour
b. Wood turns to alcohol
d. Both a and b
6. Physical change happens when materials undergo a change in ...
a. size
b. shape
c. phase
d. all of them
7. Which statement is true about physical change?
a. It does not change a material's composition. b. It does not change a material's size and shape.
c. It does not involve the physical properties of matter.
d. It does not involve matter
8. Which is a physical change?
a. Burning toast
b. Fireworks exploding
c. Rusting bicycle
d. Freezing chocolate-covered strawberries
9. Which process involves a physical change?
a. Frying an egg
b. Photosynthesis
c. Digestion
d. Water cycle
10. Burning a match is an example of a
a. chemical change
c. physical property
b. physical change
d. chemical property
11. An example of a physical change
Foam and bubbles form afler mixing baking soda and vinegar b. A glass cup falls from the counter and shatters on the ground. c. Paper burns up and leaves ashes.
d. A plant uses sunlight and makes food.
12. Which is true about chemical change? a. It is reversible
b. It produces new materials. c. Il changes only a material's color and odor.
d. It does not change a material's size and shape.
13 An example of a chemical change is
c. throwing a rock
a. an old car rusting b. cutting a piece of paper
14. Which shows a chemical change?
d. crushing a can
a. Burning candle
c. Burning a piece or puper
d. Melting a piece of chocolate
b. Chewing a piece of bread
15. It is the primary cause of rust because it contains oxygen.
a. carbon dioxide
b. water
c. air
16. Rusting of iron made materials is commonly caused by the
d. hydrogen
a presence of heat b. absence of heat
c. presence of oxygen
d. absence of oxygen
17. What change takes place when a fruit starts to rot?
a. chemical
b. no change
c. physical
d. physical
18. Which is NOT TRUE in the statements below? a. Burning a paper involves a presence of heat.
b. Cutting a banana in half is an example of physical change.
c. Melted candle is a form of chemical change.
d. Freezing a water is a form of physical change.
19. What change will happen if you slice an apple and expose it to oxygen in the air? a. Color will change from brown to white
b. Color will change from white to brown
c. The color will not change d. No changes in color
20. Kimberly wiped the top of the table with a wet piece of cloth. After a few minutes, the it became it dry. Why does the table dry up so quickly?
a presence of heat
c. presence of water
b. absence of heat
d. absence of temperature
II. Explain how the presence of oxygen affect to the appearance of the fruits? (5 points) (21-25)
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Answer:
a
c
a
b
Explanation:
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Verified answer
Answer:
[tex]\color {red}{᯽}\color {orange}{᯽}\color {yellow}{᯽}\color {lime}{᯽}\color {green}{᯽}\color {cyan}{᯽}\color {aquamarine}{᯽}\color {indigo}{᯽}\color {blue}{᯽}\color {violet}{᯽}\color {blueviolet}{᯽}\color {pink}{᯽}\color {magenta}{᯽} \color {brown}{᯽}\color {gray}{᯽}\color {black}{᯽}[/tex]
Answer;
2.) D.
3.) C.
4.) C.
5.) D.
6.) D.
7.) D.
8.) A.
9.) A.
10.) B.
11.) C.
12.) A.
13.) A.
14.) A.
15.) C.
16.) A.
17.) C.
18.) D.
19.) A.
20.) A.
Explanation:
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