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Questions in science

[Sagot para sa’yo] How does breathing take place? Identify the sequence of the movement of air insideour body

[Sagot para sa’yo] what are some ways we can do to improve our recycling habits in our home and school

[Sagot para sa’yo] Lesson Plan 4's details characteristics of the sun​

[Sagot para sa’yo] The following materials are useful EXCEPT (A) Drained batteries B. Eco bag C. Empty bottle D. Old newspaper The following materials are harmful EXCEPT A. Used paint brush B. Empty mayonnaise jar C. Empty disinfectant bottle D. Empty hair gel container Materials that serve a purpose can be reused such as containers for any solid or liquid substances. A. Good B. Bad C. Useful D. Harmful Materials that bring hazards, harm to our health, environment and other organisms when not used properly. A. Good B. Bad C. Useful D Harmful It is caused by the reaction of iron with oxygen present in air. C. Burning D. Changing B. Combustion A. Rusting The rapid chemical combination of a substance with oxygen, involvin the production of heat and light. A. Rusting B. Combustion 8 C. Heat D. Light SS It is a form of energy described as how high the temperature is and can bring about physical change in matter. Burning B. Combustion C. Heat D. Light​

[Sagot para sa’yo] it is a form og energy describe as how high the temperature is and can bring about physical change in matter​

[Sagot para sa’yo] Which is true about weather?​

[Sagot para sa’yo] combination Becher double combustion Lavoisier single phlogiston reaction phlogiston oxygen Stahl combination ACROSS 1.proposed the first idea of the Phlogiston Theory 3. reaction in which substance reacts with oxygen gas, releasing energy in the form of light and heat 5. developed experimentally based theory of the chemical reactivity of oxygen 7. it is a displacement reaction when the positive and negative ions of different compounds switch places, forming two different compounds. 9. a substance exists in all combustible bodies, and combustion to be released in DOWN 2. it is a change where a new substance is formed. 4. a kind of displacement in a chemical the reaction in which one element is replaced by another in a compound 6. founder of the phlogiston theory of compulsion 8. vital of life 10. reactants combine to form a single product​

[Sagot para sa’yo] Reason why you deserve to pass on my subject (Discipline and social sciences) 10 Paragraph Every Paragraph must consist 5 sentences

[Sagot para sa’yo] What I KnowChoose the letter of the best answer. Write the chosen letter on a separate sheet of paper.1. Who proposed that light is composed of particles that are travelling in a straight line?a. Christiaan Huygensb. Louis de Brogliec. Max Planckd. Sir Isaac Newton2. Which is a disturbance that travels through a medium and carries energy from one location to another without transporting matter?a. crestb. photonc. troughd. wave3. What evidence tells that light is made up of particles travelling in a straight line?a. formation of shadows when light hits obstaclesb. inversion of images formed on plane mirrorsc. production of ripples when a penny is dropped to a pond4. What is true of photoelectric effect?a. Electrons from metals can be dislodged by photons from light.b. The sun's light rays travel in waves directly on the electrons of atoms.c. It proves that light is made up of waves that can remove electrons from metals.d. Light energy is composed of several colors with their respective amounts of energy.5. How is the specific quantity of light that can be absorbed by electrons to produce photoelectric effect called?a. particleb. photonc. waved. wavelength6. What term refers to the bouncing off of light waves when they hit an obstacle?a. diffractionb. reflectionc. refractiond. transmission7. What forms when light waves bounce off a mirrored surface?a. imageb. particlec. photond. shadow8. How is the bending of light waves as they pass from one medium to another medium with different refractive indices known?a. diffractionb. reflectionc. refractiond. transmission9. What is true about the angle of the reflected ray, R?a. It is equal to the angle of the incidence ray.b. It is equal to the sum of the angles of incidence and reflected rays.c. It is equal to the angle between the incident ray, I, and the plane of the mirror.d. It is equal to the angle between the reflected ray, R, and the plane of the mirror.10. A student placed a pencil in a glass of water as in the figure at the right. Why did the pencil appear to be broken?a. Light always travels in a straight line.b. Light makes the water evaporate into the air.c. Light reflects the pencil on the water's surface.d. Light bends when it passes through changing medium like air and water.11. What is the speed of light as it propagates throughspace? a.1.0x10 mb. 2.0x10c. 3.0x10d. 4.0x10d. scattering of light rays when they reach a smooth surface12. How are light waves or electromagnetic (EM) spectrum characterized?a. The crests and amplitudes of the waves are vibrating.b. It is composed of light waves with equal amounts of energy.c. The wavelengths and frequencies are the same for all the waves.d. It is composed of alternating magnetic and electric fields that oscillate perpendicular to each other13. Which is true among the following statements about the properties of light waves?a. The frequency is proportional to the energy.b. The frequency is proportional to the amplitude.c. The wavelength is proportional to the frequency.d. The energy of light waves is proportional to the wavelength..14. How does absorption of light waves happen?a. When refracted light rays pass through from less dense to denser mediumb. When images are formed due to bouncing off of light waves from smooth surfacec. When the energy of vibration is translated to neighbouring atoms that results to reemission of lightd. When incident light has the same frequency of vibration as that of the electrons in the object's atoms15. Why do most leaves appear green to our sight?a. All the colours of white light are absorbed by the leaves,b. The colours of the light are scattered by the molecules of the green leaves.c. Most of the colours of incident white light are reflected from the leaves except green.d. The colours of white light are absorbed by the leaves and green waves are reflected.​

[Sagot para sa’yo] which to be grows of plants are classified in terms of presence or absence of vessels for food and water transmission transportation answer Po ​