Properties Observable Using Your Eyes

Properties observable using your eyes

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1. Properties observable using your eyes

There are two kinds of properties than can observe using your eyes. First, tangible properties which has a physical substance and visible, and intangible properties which are properties cannot see with own eyes but can observe using how can he/she's doing such as skill, talent etc.

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2. identification properties observable using your eyes brainly

Answer:

3. Activity 2 - Choose Me and Defend Me Directions: Encircle the letter of the best answer and indicate also your reason for choosing your answer on the box. 1. It is a device that uses light to project an enlarged image on a screen. It uses a mirror, which focuses light from an intense source onto a pair of converging lenses. These lenses direct the light through a slide to a projection lens. The lens is mounted on a sliding tube so that it can be adjusted to be able to focus the real image on the screen. a. Xerox machine C. calculator b. overhead projector d. side mirror My reason: 2. Which of the following optical instruments is related to the human eye with regards to its properties? a. aperture c. mirror b. microscope d. camera My reason: 3. Which of the following pairs of devices has almost similar properties and functions? Both uses 2 lenses; the objective and eyepiece lens and magnify what the user wishes to observe. a. microscope & camera c. mirror & lenses b. telescope & microscope d. projector & Xerox machine My reason: 4. Which of the following statements best describe the properties of mirrors and lenses in comparing

Answer:

1. Over head projector

2. Microscope

3. Microscope and Camera

Explanation:

Answer:

1.B.overhead projector

2.B.microscope

3.B.telescope and microscope

4. EXPLORING Everything that you see around you is matter. But what is the composition of matter? Throughout history, man has searched for the nature of matter. Since the time of the early Greeks up to the present, man has not stopped trying to discover more about the ultimate particle, the atom. We cannot see atoms with our naked eyes but we can sense the different materials formed by the random combinations of atoms. We say "sense" instead of "see" because not all materials are visible. We can classify the different objects that we can sense based on their properties. In the study of matter, the classification is called states of matter. Any material may exist in different states as its temperature changes; these states are called phases of matter. stone What is matter? a glass of water air in a plastic bag Using your five senses, write as many observations as you can for the three objects shown above.

Answer:

The three objects shown are a stone, a glass of water, and air in a plastic bag. Here are some observations made using the five senses:

Stone:

Sight: solid, has a rough surface, and can have a variety of colors

Touch: cold or warm to the touch, hard and dense

Sound: produces a ringing sound when tapped

Smell: may have a faint earthy smell

Taste: not edible, has a gritty or sandy texture

Glass of water:

Sight: transparent, liquid

Touch: cold or warm to the touch, slippery

Sound: produces a splashing or gurgling sound when moved

Smell: has a neutral odor

Taste: has a refreshing taste

Air in a plastic bag:

Sight: invisible, may cause the plastic bag to puff up or change shape

Touch: air pressure can be felt against the skin

Sound: muffled sounds can be heard when the plastic bag is squeezed or struck

Smell: no odor

Taste: not edible, has no taste.

5. Question 1 Identification: This also means covalent compounds Answer: Question 2 Identification: Term used by scientists referring to the very small but detectable amount of heat residue of the Big Bang Answer: Question 3 Identification: The more positive atom in a molecule of dihydrogen oxide Answer: Question 4 Identification: Substance that hastens chemical reactions Answer: Catalyst Question 5 Solid substance that settles when a liquid solution is left still for a long amount of time? Answer: Question 6 Change in which the product is the same as the reactants Select one: a. Chemical change b. Both physical and chemical change c. Physical change d. No correct answer Question 7 Identification: Lightest particles in an atom Answer: Question 8 Identification: Component of chemical reaction present at its start Answer: Question 9 Property of a substance that is observable without changing it Answer: Question 10 Identification: Covalent bonding where electrons are shared equally between the atoms Answer: Question 11 Identification: It refers to tyhe speed of a chemical process Answer: Question 12 Identification: Smallest possible particle of an element containing all of the properties of the element Answer: Question 13 Molecular compound where there is a slight difference in the charge between its opposite sides Select one: a. Both Polar and Nonpolar molecular compound b. Nonpolar c. Polar Question 14 Identification: Compound formed by electron sharing Answer: Question 15 Identification: Nuclear particles that do not contribute to its charge Answer: Question 16 Identification: Radiation emitted by a body that absorbed it first Answer: Question 17 Identification: Bond characterized by the sharing of electrons between atoms Answer: Question 18 Force between the molecules of a compound Answer: Question 19 Identification: Change resulting to new material that is entirely different from the reactants Select one: a. Physical change b. No correct answer c. Chemical change d. Both Physical and Chemical change Question 20 Covalent bond that may or may not exist between two different atoms Answer: Question 21 Identification: Compounds that are dissolves easily in water Answer: Question 22 The Gold foil experiment led to the discovery of this atomic part Select one: a. Nucleus b. Electron c. Proton d. No correct answer Question 23 Identification: Catalysts in digestion of food Answer: Question 24 Bond where electrons are shared congruently throughout the molecule Select one: a. Polar covalent bonding b. No correct answer c. Nonpolar covalent bonding d. Both polar and nonpolar covalent bonding Question 25 Age of the universe (in billions of years) according to the most widely accepted cosmological theory of its existence Answer: Question 26 Covalent bond between identical atoms Answer: Question 27 Identification: Star with strong gravity allowing the formation of more oxygen and magnesium Answer: Question 28 Identification: Properties observable using your eyes Answer: Question 29 Covalent bonding resulting from unequal sharing of electrons between the atoms Select one: a. Polar covalent bonding b. No correct answer c. Both polar and nonpolar covalent bonding d. Nonpolar covalent bonding Question 30 Identification: Energy responsible different reaction rates Answer: Question 31 Fill in the blank: In a molecule of water, the atom more visited by the shared electrons would be Answer: Question 32 Identification: Property of material to emit charged particles Answer: Question 33 Identification: Reaction rate factor related to the kinetic energy of the reactant molecules Answer: Question 34 Identification: It refers to the cloud where stars are born Answer: Question 35 Identification: Material property making it capable of being hammered into thin sheets Answer: Question 36 Substance that can turn lead to gold Select one: a. Jack-o-Lantern b. Will-o-Wisp c. Witchlight d. Philosopher's Stone Question 37 Factor in reaction rate related to the amount of reactants Select one: a. Concentration b. Both Concentration and Temperature c. No correct answer d. Temperature Question 38 Behavior of the universe explaining the Big Bang Theory Select one: a. expanding b. stays constant in size c. no correct answer d. shrinking Question 39 Identification: Substance that cannot be simplified anymore Answer: Question 40 Negatively charged particles in atoms Select one: a. Electrons b. Both Protons and Electrons c. Protons d. No correct answer

1. molecular bond

A covalent bond, also called a molecular bond.

2. Background Radiarion or Cosmic Microwave Background (CMB) radiation

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3. Hydrogen

4. Catalyst

5. Suspension/Precipitate

6. A. Chemical Change

7. Electron

Electron is the lightest stable subatomic particle known.

8. Reactants

9. Physical Property

10. Nonpolar covalent bonds

A type of chemical bond where two atoms share a pair of electrons with each other.

11. Reaction Rate

12. Atom

13. C - Polar

14. Covalent Compounds

They are formed by the mutual sharing of electrons by the atoms.

15. Neutron

16. Blackbody Radiation

17. Covalent Bond

18. Intramolecular Force

It's any force that holds the atoms together to make up a molecule.

19. C - Chemical Change

20. Polar Covalent Bond

21. Polar Covalent Compounds and Ionic Bonds

22. A - Nucleus

Rutherford's experiment proved the existence of nucleus of an atom.

23. Enzymes

24. C - Nonpolar Covalent Bonding

25. 13.7 billion years

26. Nonpolar Covalent Bond

27. Supergiant

28. Physical Property

29. A. Polar Covalent Bonding

It is called to the unequal sharing of electrons between 2 different nonmetal atoms.

30. Activation Energy

31. Oxygen Atoms

32. Radioactivity

33. Temperature

34. Star Formation

A process where molecular clouds in interstellar space collapse and form stars.

35. Malleable

At higher temperatures, it becomes malleable.

36. D - Philosopher's Stone

It is known as a legendary alchemical substance that turns base metals such as mercury into gold/silver.

37. B - Both Concentration and Temperature

38. A - Expanding

39. Elements

40. A - Electrons

Electron is a negatively charged particle.

6. 9. After the Earthquake observed the following EXCEPT:a. Expect aftershocksc. Check yourself for injuriesb. Remember to help your neighbors d. Market for basic needs10. After the Earthquake at home observed the following EXCEPT:a. Inspect your home for damagec. Gas: Check for gas leaksb. Electricity: Look for electrical system damage d. Inspect your neighbor's home11. Protection against dust, awful odor, and harmful substance.a. Plastic gloves b. Gogglesc. Face Maskd. Apron12. Serve as eye protection when handling dangerous chemical while cleaninga. Plastic gloves b. Gogglesc. Face Maskd. Apron13. Elements of the discarded item are used again,a. Reduceb. Reusec. Recoverd. Recycle14. Fire drills are conducted at the frequencies specified by the Fire Code and involved all of the following activitiesEXCEPT:a. Fire alarmc. Supervisory staff operates emergency systemsb. Shouting aloudd. occupant's participation is taken into account15. This refers to precautions that are taken to prevent or reduce the likelihood of a fire that may result in death,injury, or property damage.a. Fire Safety b. Earthquakec. Fire Drilld. Earthquake Drill

9.d

10.d

11.c

12.b.

13.b

14d

15.a

7. 1. On some days, the air is warm. On the other days, the air is cold. Sometimes the sun shines. Sometimes it rains. What do you call these changes?A. rainB. sunshineC. stormD. weather2. It is a big mass of winds and rain whirling about a center of a low pressure called eye.A. tropical cycloneB. cold windsC. light windsD. gentle winds3. A typhoon has a maximum wind of ?A. less than 63kph near the centerB.from 63 to 118kph near the centerC. greater than 118kph near the centerD. greater than 200kph near the center4. What are the changes in weather during a typhoon?A. Sun is starting to shineB. Environment are floodedC. Strong winds and heavy rains can be feelD. Air is colder and dry5. The strength of the tropical cyclone depends on theA. Minimum speed of winds near the centerB. Maximum speed of winds near the centerC. The cloudiness near the centerD. None of the above6. What are you going to do during typhoons?A. go out and play with friendsB. go to the marketC. stay inside your houseD. go out and fix your roofs7. Why do you need to follow safety measures before, during and after a typhoon?A. to save lives and propertiesB. to prevent typhoon from comingC. to please the authoritiesD. to stop typhoon when it happen8. Typhoon signals are raised according to __?A. strength of the windB. speed of the windC. strength and speed of the windD. none of the above9. When classes in all levels are suspended and work in government offices are likewise suspended, what typhoon signal is called?A. Signal No. 1B. Signal No. 2C. Signal No. 3D. Signal No. 410. Strong winds of 60-100kph is expected within 24 hours and classes in the elementary and secondary are suspended. It describes.A. Signal No. 1B. Signal No. 2C. Signal No. 3D. Signal No. 411. A large and violent whirlwind observed in different parts of Earth.A. cycloneB. breezeC. monsoonD. ITCZ12. A group of clouds that bring weak to moderate rains and few thunderstorms.A. cycloneB. breezeC. monsoonD. ITCZ13. The winds that blow onto the shore from the sea during daytime and away from the shore during night time.A. cycloneB. breezeC. monsoonD. ITCZ14. A system of winds that influences the climate of a large area and that reverses direction with the seasons.A. cycloneB. breezec. monsoonD. ITCZ15. A government agency that warns the people of an approaching typhoon.A. PHIVOLCSB. PAGASAC. DENRD. DepEd16. Weather bulletin are posted and warnings are issued by PAGASA on what purpose?A. To give people time to prepareB. To give people to go and watch movieC. To give people time for swimmingD. To give people time to party17. PAGASA has just raised typhoon signal number three in Metro Manila and neighboring Northern Luzon provinces. What does this means?A. Winds up to 60kph may be expected in the localityB. Winds from 60-100kph may be expected within the next 24 hoursC. Winds with a speed of 100-185kph are expected in the area in at least 18 hoursD. Winds with a speed greater than 185kph are expected to hit the area in at least 12 hours18. Which of the following is the effect of very strong winds of public storm signal #4 to transportation system?A. It is safe to travel both in air and in seaB. Travel by sea is allowed but not in airC. Travel by air is allowed but not in seaD. Travel by air and sea are stopped/cancelled19. A term used to describe a change in atmospheric conditions or weather patterns.A. monsoonB. cycloneC. ITCZD. weather disturbance20. A small-diameter column of violent air within a convective cloud in contact with the ground.A. tropical cycloneB. tornadoC. monsoonD. typhoon

Answer:

1. D

2. A

3. C

4. C

5. B

6. C

7. A

8. C

9. D

10. B

11. A

12. C

13. A

14. D

15. B

16. A

17. A

18. D

19. D

20. D

Hope this helps^^

8. Directions: Read each item carefully. Write only the letter of your answer for each question. Use a separate sheet for your answers. 1. How do you call objects that emit light? A. luminous B. non-luminous C. opaque D. transparent 2. Which of the following items best describes the nature of light? A. current and wave B. mass and particle C. point and wave D. wave and particle 3. The following are natural sources of light in the surroundings, EXCEPT__________ A. fire B. flashlight C. jellyfish D. lightning 4. Which of the following are the correct reasons why we see a clear image of our face when we look on the mirror? I. A mirror has plane and smooth surface. II. Incident light rays to a mirror get diffracted when it strikes a mirror. III. Incident light rays to the mirror get refracted on the surface of mirror. IV. Incident light rays to a mirror get reflected when it strikes on plane surface. A. I and II only B. I and III only C. I and IV only D. III and IV only 5. According to Louis de Broglie, why is light said to have a dual nature? A. It shows the properties of wave only. B. It exhibits the properties of reflection. C. It has both interference and polarization effect. D. It displays the properties of both wave and particle. 6. Who among the scientists below formulated the wave theory of light? A. Isaac Newton B. Louis de Broglie C. Christian Huygens D. James Clerk Maxwell 2 CO_Q3_Science 7_ Module 5 7. Which of the following is NOT a property of light? A. Direction B. Frequency C. Intensity D. Width 8. Which of the following materials would reflect light the most? A. black rock B. dark brown carpet C. flat sheet of aluminum foil D. piece of red construction paper 9. The distance of an observer from two identical kinds of light sources varies. Light source A is 200 centimeters away while the light source B is 300 centimeters away from the observer. Does light source A give higher light intensity than light source B? A. Yes, because it is away from the observer B. Yes, because it is much closer to the observer C. No, because the distances of light source vary D. No, because its distance is closer from the observer 10. The intensity of light is inversely proportional to the distance from the eye of the observer. Which of the following statements explain the relationship between intensity and distance? I. As the distance increases, the intensity of light decreases because it spreads out over a larger surface area. II. When the distance increases, the intensity of light increases because the light rays compressed in larger surface area. III. If the distance increases, the intensity of light decreases because light waves spread out more in its surrounding. A. I, II, and III B. I and II only C. I and III only D. II and III only For items 11 to 13, refer to the illustration below. Suppose two identical kinds of light sources, A and B, shines on a surface of a board when placed 100 cm to the left and 50 cm to the right of the board, respectively. A B 100 cm 50 cm 3 CO_Q3_Science 7_ Module 5 11. Will the light intensity measured on the cardboard facing light source A is higher than the side facing light source B? A. No, because light source A is farther from the cardboard than light source B. B. Yes, because light source A is farther from the cardboard than light source B. C. Yes, because light source B is much closer to the cardboard than light source A. D. No, because the distance of light sources has no effect on their light intensities. 12. How does the amount of light intensity of light source B compare to light source A as measured on the surface of the cardboard? A. They have equal light intensities. B. They have varying light intensities per time. C. The side facing light source A has greater light intensity. D. The side facing light source B has greater light intensity. 13. Which of the following statements correctly describes the brightness of light sources A and B? I. Light source A is brighter than light source B. II. Light source B is brighter than light source A. III. Light sources A and B produce unequal brightness. IV. No differences in brightness between light sources A and B. A. I, and II only B. II and III only C. III and IV only D. I, II, and III only 14. Which of the following terms best describes an object that emit energy in the form of light? A. Fluorescence B. Incandescence C. Luminous D. Phosphorescence 15. The following objects are luminous, EXCEPT__________________. A. sun B. moon C. burning wood D. flashlight switched on NEED NOW I GIVE BRAILIEST FORRIGHT ANSWER

Answer:

1-10 lang po ito po:

1.A

2.A

3.B

4.C

5.D

6.C

7.D

8.C

9.B

10.C

9. Unit 1. SCIENCE AND INVESTIGATORY PROCESSLesson 1.1-PURE AND APPLIED SCIENCEWhat is Science?Science may be broadly defined as development and systematization of positive knowledge about thephysical world.What is Pure Science?a science depending on deductions from demonstrated truths, such as mathematics oriogic, or studied without regard to practical applications.It is the search for facts.Examples of Pure Science Scientist study human vision to learn how the eyes works.Students look through a microscope to see what's inside the cell.A biologist is experimenting on plant's reaction to lack of sunlight.What is applied Science? The search for practical applicationscientific knowledge to develop more Often referred to as "technology Technology comes from the Greek wark "technologia, which is a combination of techne meaning craft, andApplied science is a discipline that is used to apply existing practical applications, for example: technology or inventions.logia means study.The first technological tools were simple hand-axes made by our ancestors millions of years ago. Technology is a product of engineering and science. Science aims to understand why and how nature andengineering seeks to shape the natura world to meet human need as and wents.Examples of Applied ScienceScientist invent motion pictures, eyeglasses and contact lenses.Pharmacologist make and manufacture drugs and medicines. Engineers created bridges and tall buildings.1.3 Field study of ScienceScience has three major branches1. Social Sciences-It focuses primarily on the study of people and culture2. Formal Sciences-It is concerned with properties of formal systems based on definition3. Natural Sciences-It tries to understand the real world.Division of Natural ScienceBiological Science- any of the branches of natural science dealing with living things, such as their structure, behavior, organization, life processes, as well as their interactions with each other and with the natural environment Supplement. It includes biology and other related disciplines. Physical Science - the sciences concerned with the study of inanimate natural objects, including physics, chemistry, astronomy, and related subjects. The study of non-living things.1.DIRECTIONS: Read and answer the questions carefully.WORKSHEET NO.11 It is the search for facts.2. tuses the discoveries of pure science to create practical solutions to existing problems. 3. It is the Greek word for technology.4. It came from the Latin word means "Scientia",5. Technology comes from the Greek word technologia, techne means logia mean.II. ESSAYScience and technology feed off of one another, propelling both forward. Scientific knowledge allows us tobuild new technologies, which often allows us to make new observations about the world, which in turn, alow us to build even more scientific knowledge, which then inspire technology and so on. For you as a student is technology a boon or a bane? Explain your answer.WORKSHEET NO.2DIRECTIONS: Classify whether the following professions/occupations are related to physical er biologicalscience.1. Doctor2. Engineer3. Veterinary Doctor4. Welder5. Eectrician6. Farmer7. Fisherman8. Nurse9. Astronaut10. Mason

physicalphysicalbiologicalphysicalphysicalbiological?biologicla?biologicalbiologicalphysical

10. correct letter on your answer sheet/s.TESTaa1. Protection of cleaners against contamination during cleaning process.Plastic glovesb. Gogglesc. Face Maskd. Apron2. A kind of isolation that is used for diseases that are spread through particles that are exhaled.a. Strict Isolation b. Reverse Isolation c. Contact Isolation d. Respiratory Isolation3. It is otherwise known as Philippine Clean Air Act.RA87491. R4 7849C. RA 4978d. RA 98744. It is the shaking and vibration at the surface of the earth resulting from underground movement along a faultplane or from volcanic activity.a. Shakingb. Earthquakec. Vibrationd. Volcanic Eruption5. It is the provision of initial care for an illness or injury. It is usually performed by non-expert, but trainedpersonnel to a sick or injured person until definitive medical treatment can be accessed.Sudden Aidb. First Aidc. Emergency Aid d. Urgent Aid6. The following are the general Directions for First Aid EXCEPT:Give immediate action b. Plan action to be taken Assess the situation d. Don't panic7. A good first aider must possess the following characteristics EXCEPT:Gladsomeb. Watchfulc. Gentled. Fast8. During the Earthquake observed the following EXCEPT:Runb. Hold onc. Dropd. Cover9. After the Earthquake observed the following EXCEPT:Expect aftershocksc. Check yourself for injuriesb. Remember to help your neighborsd. Market for basic needs10. After the Earthquake at home observed the following EXCEPT:a. inspect your home for damagec. Gas: Check for gas leaksb. Electricity: Look for electrical system damage d. Inspect your neighbor's home11. Protection against dust, awful odor, and harmful substance.a. Plastic gloves b. Gogglesc. Face Maskd. Apron12. Serve as eye protection when handling dangerous chemical whilecleaninga. Plastic gloves b. Gogglesc. Face Maskd. Apron13. Elements of the discarded item are used again.a Reduceb. Reusec Recoverd. Recycle14 Fire drills are conducted at the frequencies specified by the Fire Code and involved all of the following activitiesEXCEPTa. Fire alarmc. Supervisory staff operates emergency systemsbShouting aloudd. occupant's participation is taken into account15. This refers to precautions that are taken to prevent or reduce the likelihood of a fire that may result in deathin ury, of property damage.a Fire Safety b. Earthquakec. Fire Drilld. Earthquake Drill

Answer:

2.D

4.B

7.A

8.A

9.D

10.D

11.C

12.B

13.D

14.B

11. POST Directions: Choose the best answer from the choices given below after each sentence by writing theITESTcorrect letter on your answer sheet/s.ad. Respiratory Isolationa.aa1. Protection of cleaners against contamination during cleaning processPlastic glovesb. Gogglesc. Face Maskd. Apron2. A kind of isolation that is used for diseases that are spread through particles that are exhaled.a. Strict Isolation b. Reverse Isolation c. Contact Isolation3. It is otherwise known as Philippine Clean Air Actа. RA8749b, RA 7849C. RA 4978d. RA 98744. It is the shaking and vibration at the surface of the earth resulting from underground movement along a faulplane or from volcanic activity.a. Shakingb. Earthquakec. Vibrationd. Volcanic Eruptions. It is the provision of initial care for an illness or injury. It is usually performed by non-expert, but trainedpersonnel to a sick or injured person until definitive medical treatment can be accessed.a. Sudden Aidb. First Aidc. Emergency Aid d. Urgent Aid6. The following are the general Directions for First Aid EXCEPT:Give immediate action b. Plan action to be taken c. Assess the situation d. Don't panic7. A good first aider must possess the following characteristics EXCEPT:Gladsomeb. Watchfulc. Gentled. Fast8. During the Earthquake observed the following EXCEPT:Runb. Hold onc. Dropd. Cover9. After the Earthquake observed the following EXCEPT:Expect aftershocksc. Check yourself for injuriesb. Remember to help your neighborsd. Market for basic needs10. After the Earthquake at home observed the following EXCEPT:a. Inspect your home for damagec. Gas: Check for gas leaksb. Electricity. Look for electrical system damage d. Inspect your neighbor's home11. Protection against dust, awful odor, and harmful substance.Plastic gloves b. Gogglesc. Face Maskd. Apron12. Serve as eye protection when handling dangerous chemical whilecleaningPlastic gloves b. Gogglesc. Face Maskd. Apron13. Elements of the discarded item are used again.Reduceb. ReuseC. Recoverd. Recycle14. Fire drills are conducted at the frequencies specified by the Fire Code and involved all of the following activitiesEXCEPT: :Fire alarmc. Supervisory staff operates emergency systemsb. Shouting aloudd. occupant's participation is taken into account15. This refers to precautions that are taken to prevent or reduce the likelihood of a fire that may result in death,injury, or property damage.Fire Safety b. Earthquakec. Fire Drilld. Earthquake Drilla.a.a.a

Answer:

1. C

2.C

3.A

4. D

5.B

6.B

7.C

8.A

9.D

10.C

11.C

12.B

13.B

14.B

15.A

1. Properties observable using your eyes

2. identification properties observable using your eyes brainly

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