Answer the following question given this paragraph: that have taken place during this time. There are however, areas of knowledge and human experience that the methods of science cannot be applied to. These include such things as answering purely moral questions, aesthetic questions, or what can be generally categorized as spiritual questions. Science has cannot investigate these areas because they are outside the realm of material phenomena, the phenomena of matter and energy, and cannot be observed and measured. The scientific method is a method of research with defined steps that include experiments and careful observation. The steps of the scientific method will be examined in detail later, but one of the most important aspects of this method is the testing of hypotheses. A hypothesis is a suggested explanation for an event, which can be tested. Hypotheses, or tentative explanations, are generally produced within the context of a scientific theory. A scientific theory is a generally accepted, thoroughly tested and confirmed explanation for a set of observations or phenomena. Scientific theory is the foundation of scientific knowledge. In addition, in many scientific disciplines (less so in biology) there are scientific laws, often expressed in mathematical formulas, which describe how elements of nature will behave under certain specific conditions. There is not an evolution of hypotheses through theories to laws as if they represented some increase in certainty about the world. Hypotheses are the day-to-day material that scientists work with and they are developed within the context of theories. Laws are concise descriptions of parts of the world that are amenable to formulaic or mathematical description. Natural Sciences What would you expect to see in a museum of natural sciences? Frogs? Plants? Dinosaur skeletons? Exhibits about how the brain functions? A planetarium? Gems and minerals? Or maybe all of the above? Science includes such diverse fields as astronomy, biology, computer sciences, geology, logic, physics, chemistry, and mathematics (Figure... Q: The scientific method is a method of research with defined steps that include experiments and careful what? Choices: - discovery - estimation - consideration - observation A:
observation
(Question)
Answer the following question given this paragraph: organelle in the cells of plants and algae where photosynthesis takes place. Q: What part of the cell in plants and algae does photosynthesis take place? Choices: - mitochondria - fibers - cell wall - organelles A:
(Answer)
organelles
Ques: Answer the following question given this paragraph: Making Connections: Real-World ConnectionsFilling the Tank Differences in the thermal expansion of materials can lead to interesting effects at the gas station. One example is the dripping of gasoline from a freshly filled tank on a hot day. Gasoline starts out at the temperature of the ground under the gas station, which is cooler than the air temperature above. The gasoline cools the steel tank when it is filled. Both gasoline and steel tank expand as they warm to air temperature, but gasoline expands much more than steel, and so it may overflow. This difference in expansion can also cause problems when interpreting the gasoline gauge. The actual amount (mass) of gasoline left in the tank when the gauge hits "empty" is a lot less in the summer than in the winter. The gasoline has the same volume as it does in the winter when the "add fuel" light goes on, but because the gasoline has expanded, there is less mass. If you are used to getting another 40 miles on "empty" in the winter, bewareyou will probably run out much more quickly in the summer. Q: The actual amount (mass) of gasoline left in the tank when the gauge hits "empty" is a lot less in the summer than in the winter. the gasoline has the same volume as it does in the winter when the "add fuel" light goes on, but because the gasoline has expanded, there is what? Choices: - lower gravity - same mass - more mass - less mass A:
Ans: less mass
(Q).
Answer the following question given this paragraph: The photos in Figure below show how farming practices can increase soil erosion. Plant roots penetrate the soil and keep it from eroding. Plowing turns over bare soil and cuts through plant roots. Bare soil is exposed to wind and water. In the past, farmers always plowed fields before planting. Some farmers now use no-till farming, which does not disturb the soil as much. Q: No-till farming is one effort to combat what, caused by typical farming practices? Choices: - habitat destruction - drought - pollution - soil erosion A:
(A).
soil erosion
Ques:Answer the following question given this paragraph: Aldehydes, ketones, carboxylic acids, esters, and ethers h ave oxygencontaining functional groups. Q: Aldehydes, ketones, carboxylic acids, esters, and ethers all have functional groups containing what element? Choices: - silicon - methane - carbon - oxygen A:

Ans:oxygen
Answer the following question given this paragraph: Q: In animal cells, what arises from the centrosomes and includes spindle microtubules and asters? Choices: - Golgi apparatus - ribosomes - DNA helix - the spindle A:
the spindle