When scientists use one of their five senses to gather information, they are A. making an observation. B. making an inference. C. predicting a relationship D. drawing a conclusion.
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The scientists use one of their five senses to gather information, they are making an observation.
What is an observation ?
The active gathering of data from a primary source is observation. Observation of living things makes use of the senses. Using scientific tools to perceive and record data is another way that observation may be used in science.
A technique for gathering information through observation of individuals, situations, or physical qualities as they are occurring naturally.
Using one or more senses, our observational abilities provide us with knowledge about things, occasions, attitudes, and occurrences. Being able to see and learn about the outside world is crucial because it forms the basis of effective communication.
Thus, option A is correct.
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Final answer:
In scientific endeavors, when one of the five senses is used to gather information, it constitutes making an observation. Observations can involve both qualitative and quantitative data, and they provide evidence that scientists use to form conclusions.
Explanation:
When scientists use one of their five senses to gather information, they are A. making an observation. Scientists usually perform observations by using one or more of their five senses to gain an understanding of the properties or behaviors of a substance or a system. These data can be qualitative (descriptive) or quantitative (consisting of numbers). For instance, seeing a plant growing (observation) and measuring its growth over weeks (data collection). From these observations, the scientist can infer conclusions based on the evidence collected. In brain studies, the activity in the brain during specific tasks is observed, which could be the basis for conclusions about brain functionality.
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Related Questions
The step that usually comes last in solving numeric problems is to ___
The diagram below shows different layers of sedimentary rocks.Picture showing seven layers of rocks of different colors labeled A, B, C, D, E, F, and G from top to bottom; A and B are parallel horizontal layers at the top of the diagram and C, D, E, F, and G are slanted layers with C closest to the surface and G at the bottom. Based on the diagram, which of these inferences is most likely correct? A.Layer A is older than Layer B. B.Layer C is older than Layer E. C.Layer F is younger than Layer D. D.Layer B is younger than Layer G.
How many grams of oxygen are required to react with 10.0 grams of octane (C8H18) in the combustion of octane in gasoline?
In plants, movement of CO2 and O2 happens through:
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Answer:
The answer is below
Explanation:
1. With the aid of natural hues, the fox can change its color based on the environment it found itself in. For example, during summer and spring, fox color changes to dark to provide itself cover in the environment that is characterized by the brown dirt. Similarly, the fox color changes to white during winter and fall to blend with the snow.
2. In a bid to domesticate fox, it has been observed over many generations that the domesticated fox compared to wild fox has floppy ears and curly tails. The stress hormone level has reduced significantly and they possess a smaller adrenal gland.
B. K(s) and Na(s)
C. O2(g) and O3(g)
D. P4(s) and S8(s)
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Answer: Th correct answer is option C.
Explanation:
Atoms are the smallest unit of a chemical element.
An element is defined as the simplest substance which cannot be further divided.
A molecule is defined as the combination of two or more atoms of same or different elements.
Fro the given options, option 3 and 4 are the molecules, but Option 3 has the different number of atoms of same element. These molecules have different molecular structures.
is the oxygen gas and
is ozone.
Hence, the correct answer is option C.
Both
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Answer:
The answer to your question is photon. An isotope remains unchanged by the emission of a gamma ray, which is a (an) photon123. A photon is a particle of light or electromagnetic radiation that has no mass and no electric charge4. A gamma ray is a type of photon that has the highest energy and frequency in the electromagnetic spectrum4. Gamma rays are emitted by the nuclei of some radioactive atoms when they undergo a nuclear rearrangement or decay4. Gamma ray emission causes no change in the number of particles in the nucleus, meaning both the atomic number and mass number remain the same23. Therefore, an isotope does not change its identity or mass when it emits a gamma ray, but only releases some excess energy as a photon. I hope this answer helps you understand the concept of gamma ray emission better.
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Al2(SO4)3 + 3Ca(OH)2 = 2Al(OH)3 + 3CaSO4
The ratio of calcium hydroxide and aluminum hydroxide is 3:2.
Answer: The mole ratio of is 3 : 2
Explanation:
Law of conservation of mass states that mass can neither be created nor be destroyed, but it can only be transformed from one form to another. In a chemical reaction, total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.
All the balanced chemical equation follows law of conservation of mass.
The balanced chemical equation for the combination of aluminium sulfate with calcium hydroxide is:
Mole ratio of any two compounds is basically the ratio of their stoichiometric coefficients.
Hence, the mole ratio of is 3 : 2
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Answers
Answer:
The mass of iron needed will be 669.13 grams
Explanation:
The formula to be used here is that of specific heat equation which is
Q = mc Δt
where Q is the heat energy (in calories according to this question) = 1450 cal
m is the mass of the substance being heated (in this case Iron) = unknown
c is the specific heat of the substance (iron) = 0.11 cal/(g. °C)
Δt is the change in temperature in degree celsius = 19.7 °C
From the specific heat equation provided earlier, the mass of Iron needed can be calculated as
m = Q ÷ (c × Δt)
m = 1450 ÷ (0.11 × 19.7)
m = 1450 ÷ 2.167
m = 669.13 grams
The mass of iron needed will be 669.13 grams
NOTE: Kindly consider the units when solving. The reason for the choice of 0.11 cal/(g. °C) as specific heat is because the heat energy was in calories. If the heat energy was in joules, the specific heat of iron would have been different and the unit would have been j/(g. °C).