The document is a science test for 7th grade students covering topics in chemistry, biology, physics, and earth science. It contains 40 multiple choice questions testing concepts like the scientific method, properties of matter, cell structure and function, light and sound, forces and motion, energy, the Earth's spheres, and natural resources. The questions assess a student's understanding of fundamental science concepts taught in 7th grade.

1. Science 7 | Page 1
Republic of the Philippines
Department of Education
Region VI - Western Visayas
SCHOOLS DIVISION OF CAPIZ
Banica, Roxas City
COMPETENCY-BASED ASSESSMENT IN SCIENCE 7
Directions: Read each item carefully. Choose the correct answer and write the letter of your
choice on your answer sheet.
1. Manny plan to conduct an experiment to determine how the amount of salt in a body
of water affects the number of plants that can live in the water. In this experiment,
which variable should Manny consider as the dependent variable?
A. Water
B. Temperature of the water
C. Amount of salt in the water
D. Number of plants in the water
2. What is the correct order of the steps in the scientific method?
A. Ask questions, make a hypothesis, test the hypothesis, analyze results,
draw conclusions, communicate results.
B. Ask a question, make a hypothesis, test hypothesis, draw conclusions,
analyze results, communicate results.
C. Make a hypothesis, test the hypothesis, analyze the results, ask a question,
draw conclusions, communicate results.
D. Ask a question, analyze results, make a hypothesis, test the hypothesis,
draw conclusions, communicate results.
For items 3 - 4, refer to the problem below.
Substance A and Substance B were examined. The results showed that Substance
A is made up of a single atom and cannot be broken down into simple form while
Substance B is made up of two or more atoms of different kinds and can be broken down
into its components.
3. Which of the following is substance B?
A. Compound
B. Element
C. Mixtures
D. Pure Substance
4. Which of the following is substance A?
A. Acid
B. Element
C. Compound
D. Mixture

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5. Alexander wants to compare the chemical properties of two substances. In doing it,
he prepared two flasks containing the substances and labeled them Liquid A and
Liquid B. He monitored the boiling points of the liquids and found that the boiling points
were 100˚C for substance A and 110˚C - 112˚C for liquid B. How would you classify
the two liquids?
A. Liquid A is pure substance while Liquid B is a mixture.
B. Liquids A and B contain two or more atoms that are chemically bonded.
C. Liquid A has varying boiling points while liquid B has a fix boiling point.
D. Liquid A maybe homogenous or heterogeneous but substance B is not.
6. A white powder was tested and heated. After some time, it melts completely. What
does it imply?
A. It is a mixture.
B. It is a pure substance.
C. It is a homogeneous mixture.
D. It is a combination of pure substance and mixture.
7. Which of the following refers to the solution that contains less amount of solute than
can dissolve at a given temperature?
A. Solubility
B. Saturated solution
C. Unsaturated solution
D. Supersaturated
8. Why increasing temperature of the solvent will speed up the dissolving process?
Because it brings ___________________________________.
A. more solute to crystallize
B. less solute molecules to the solvent
C. fresh solvent into contact with more solute
D. more solvent molecules to collide with the solute
9. Which of these factors will cause more sugar to dissolve in a saturated sugar
solution?
I. Add more sugar while stirring.
II. Add more sugar and heat the solution.
III. Add more sugar to the heated solution.
IV. Add more sugar and cool down the solution.
A. I, II, III only C. II and III only
B. I and II only D. I, III, IV only
10. Lynn bought an 18 karats ring which contains 18g of gold. What is the % by mass of
gold in a ring?
A. 65% C. 85%
B. 75% D. 95%

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11. A beverage contains 3% alcohol which means that:
A. The solution contains 3mL of alcohol in 97mL of water.
B. The solution contains 30mL of alcohol in 70mL of water.
C. The solution contains 300mL of alcohol in 700mL of water.
D. The solution contains 100mL of alcohol in 100mL of water.
12. Which two parts of the light microscope magnify the image of an object?
A. eyepiece and mirror
B. eyepiece and objectives
C. objectives and mirror
D. objectives and diaphragm
13. An animal cell being observed is seen at the topmost part of the field of view under
the LPO. If you want to center the specimen, which direction should you move the
slide?
A. Downward or towards me or the user.
B. Forward or away from me or the user.
C. Move to the right side of the user.
D. Move to the left side of the user.
14. Which should be used to observe bacteria?
A. 60x objective with immersion oil and 10x eyepiece.
B. 97x objective with immersion oil and 5x objectives.
C. 3x objective and a 10x eyepiece.
D. 60x objective and 15x eyepiece.
15. At which smallest level of organization in an organism can the characteristics of life
be carried out?
A . Cell B. Organ C. Organ system D. Tissue
16. Which is the correct sequence – from biggest to smallest – of the levels of
organization in an organism?
A. Cell → Organ → Organ System → Tissue
B. Organ → Organ System → Tissue → Cell
C. Tissue → Cell → Organ → Organ System
D. Organ System → Organ → Tissue → Cell
17. If the chloroplasts of a plant cell are damaged, which will it be unable to do?
A. excrete waste materials
B. give instruction for cell to reproduce
C. make food for the cell
D. protect the cell

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Use the following options to answer the next question.
I. absence of centrioles
II. irregular shape
III. presence of cell wall
IV. angular and rigid shape
V. absence of chloroplast
18. Mira was asked to identify an unknown slide. Which could help Mira identify it to
be an animal cell?
A. I and III
B. II and V
C. I and IV
D. III and IV
19. Farmer Cardo wants to propagate a good variety of a crop in a way which maintained
all its desirable traits. Which of the following methods should be used?
A. Self-pollination
B. Vegetative propagation
C. Growing seeds produced from this variety.
D. Cross-pollinating this crop with another good variety and growing the seeds
resulting from the cross.
20. What is NOT a characteristic of sexual reproduction?
A. Gametes from two parents unite to form a zygote.
B. Genetic variability of offspring help to ensure survival in changing environmental
conditions.
C. Offspring are different from their parents and sibling.
D. Offspring are genetically identical with the parent.
21. A plant needs water, radiant energy, minerals, oxygen, and carbon dioxide to live. This
statement shows that an organism depends on which of the following?
A. Abiotic components
B. Biotic components
C. Climate
D. Minerals
22. Which of the following represents an abiotic component of the environment?
A. Ornamental plants on your backyard
B . Concrete fence and plastic pots
C. Grasses on the ground
D. Sprouting mongo seeds

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23. Which of the following correctly describe the relationship between a snake and a rat?
A. The snake is benefitted while the rat is harmed.
B. The snake is benefitted while the rat is unaffected.
C. The snake is harmed while the rat is benefitted.
D. The snake and the rat both benefits from the relationship.
24. Which of the following is the correct food chain?
A. Grass → grasshopper → maya bird → hawk
B. Grass → grasshopper → frog → snake → hawk
C. Grass → mouse → snake →hawk
D. Grass → mouse → crocodile
25. During harvest time, abundant supply of food is accompanied by the increase in
number of field mice that prey on the rice plant. Snakes that prey on field mice also
will increase in number. What could be the possible outcomes if the farmers get rid of
the snakes?
A. I only
B. II and III only
C. I and II only
D. II and IV
26. Which of the following is an abiotic factor that may affect the population of organisms?
A. Extreme temperature
B. Food availability
C. Parasites
D. Predators
27. Which of the following graphs shows that the object’s motion is accelerating?
I. The snake population will increase.
II. The food supply will decrease.
III. The rice mice population will double.
IV. The rice mice population will control the snake population.
A B
C
U
D

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28. Which of the following is true about the object that travels 10 meters west, then 4
meters North, then another 10 meters to the East?
A. The displacement if the of the object is equal to 24 meters.
B. The total distance travelled of the object is equal to 24 meters.
C. The displacement of the object is equal to 24 meters.
D. The total distance travelled by the object is equal to 24 meters down.
For number 29, use the diagram below.
29. Referring to the diagram above, what is the final position of the ball after 15 seconds?
A. 0m B. 5m C. 10 m D. 15 m
30. Energy from the sun reaches the earth though
A. Electromagnetic waves C. Mechanical waves
B. Infrared waves D. Ultraviolet waves
31. Which of the following best describes a high frequency sound? It has …
A. low pitch C. low energy
B. high pitch D. A and C
32. ROYGVIB is the basic component of white light. Which color of light carries the lowest
frequency?
A. Blue B. Red C. Green D. Orange
33. To most Filipinos, lechon is a part of every occasion. How does heat travel in roasting
lechon?
A. by conduction C. by compaction
B. by convection D. by radiation
34. The figure shows three pairs of plate. The electrostatic force between the plates is
shown for two of the pairs. If B is negative, what is the charge of A? What kind of force
exists in the third pair?
A. negative, attractive C. positive, attractive
B. negative, repulsive D. positive, repulsive

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35. In what way we can locate the Philippines on the globe?
A. by determining its latitude and longitude
B. by identifying the landmasses and bodies of water in the surrounding area
C. by distinguishing the natural resources in a certain place
D. both A and B
36. How will you use the Earth’s resources wisely?
A. by reducing the waste materials
B. by reusing the materials instead of throwing
C. by making a compost out of biodegradable materials
D. A, B and C
37. Sun is the ultimate source of energy. How does energy from the sun enter the
atmosphere?
A. The sun’s energy enters anywhere in the space including Earth.
B. It reaches Earth and enters the atmosphere through radiation.
C. It enters the atmosphere by vibrating through air particles of the atmosphere.
D. The plants in the Earth attracts the sun’s energy making it enter the Earth’s
atmosphere.
38. What happen to the surrounding air as warm air rises?
A. It moves in all direction
B. It moves away from the rising air
C. It moves to a higher altitude
D. It moves toward the place
where warm air rises.
39. How does latitude primarily affect
The controls of weather and climate?
A. by atmospheric circulation
B. by humidity
C. by precipitation
D. by temperature
40. How does a solar eclipse happen?
A. When the shadows of Earth and moon are cast in space.
B. When the moon comes directly between the Sun and Earth.
C. When the shadows of the moon and Earth is neither too high nor too low,
D. When the Sun is on the opposite side of the Earth and the moon.
- - - - - END OF THE TEST IN SCIENCE 7 - - - - -