What was the purpose of the experiment?
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Which properties are more useful in determining the identity of an unknown substance: intensive or extensive? Explain.
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Write a hypothesis based on observations and scientific principles.
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Experimental Methods
What tools did you use to collect your data?
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Describe the procedure that you followed to conduct your experiment.
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Data and Observations
Record your observations.
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Conclusions
What conclusions can you draw about the identity of the unknowns? Write an evidence-based claim.
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Evaluate the procedure used in this experiment by considering the properties used to identify the unknowns and the number of knowns that were tested. Revise the experimental design by proposing ways to modify the experiment to increase your certainty in the identity of the unknowns.
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Answers
Answer:
Answer 1: The purpose of an experiment is to test a hypothesis.
Answer 2: Scientists commonly measure intensive properties to determine a substance's identity, whereas extensive properties convey information about the amount of the substance in a sample.
Answer 3: These principles are at work in the fundamental elements of the scientific method, such as formulating a hypothesis, designing an experiment to test the hypothesis, and collecting and interpreting data. In addition, more particular principles characteristic of specific scientific disciplines influence the methods of observation; the acquisition, storage, management, and sharing of data; the communication of scientific knowledge and information; and the training of younger scientists.
Answer 4: Data collection tools refer to the devices/instruments used to collect data, such as a paper questionnaire or computer-assisted interviewing system. Case Studies, Checklists, Interviews, Observation sometimes, and Surveys or Questionnaires are all tools used to collect data.
Answer 5: The purpose of an experiment is to test out your hypothesis. If your hypothesis is correct, then it is a theory that could work every single time the experiment has been performed by scientists.
Answer 6: ?
Answer 7: the first step toward teaching my students how to critically think about how they structured an argument or explanation was to implement the Claim, Evidence, Reasoning (CER) framework. While the premise behind CER isn’t anything new to the way science teachers already think, it provides an entirely different approach toward how students connect their experiences and previously learned content into something that is much more reflective of being scientifically literate.
Answer 8: ?
Explanation:
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The purpose of an experiment is to test a hypothesis.
The properties that are more useful in determining the identity of an unknown substance are the intensive properties.
The tools that can be used to collect data are known as data collecting tools. Examples include questionnaires, observations, etc.
The aim of an experiment is to test a hypothesis, demonstrate a known fact, or provide insight into cause-and-effect. It demonstrates the outcome that occurs when a particular force is manipulated.
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Related Questions
Post-Industrial Revolution & Clear Air Acts
Clear Air Acts were passed by governments of industrialized nations beginning in the mid-1950s. This reduced the
amount of pollution in the environment, especially in areas arounds factories.
14. What change in the environment would occur because of the Clear Air Acts? ANSWER HERE
15. How would the moth population change over time? ANSWER HERE
Answers
Sooty air pollution brought on by industrialization and home coal fires destroyed lichens and darkened city tree stumps and walls.
Which definition of environment is the best?The term "environment" can be used to refer to the whole of all living and non-living things as well as their influences on human life. Animals, plants, forests, fishery, and birds make up all biotic or life components. Abiotic or non-biotic elements include waters, land, sunlight, minerals, and air.
How would you describe the environment?Background, milieu, mise-en-scene, and setting are some typical synonyms for environment. While all of these terms refer to "the location, time, and conditions in which something occur," environment is used to refer to all external variables that have a forming impact on one's moral, intellectual, or physical development.
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Which trophic level does a fish represent in this food chain?
Answers
Fish represents the fourth trophic level in this food chain. Algae make up the first trophic level, followed by mosquito larva, dragonfly larva and finally fish. Man is the fifth trophic level.
What is larva?Larva (plural larvae) are the immature, wingless, and usually worm-like forms of insects that occur between hatching from an egg and metamorphosis into the adult form. Larvae are the most widespread life-stage of insects, and can be found in a wide variety of habitats, including aquatic, terrestrial, and even parasitic environments. Depending on the species, the larva may have different morphologies and feeding habits, and may go through several molts and instars to reach the adult stage. Some species remain in the larval stage for the entirety of their lives.
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Complete Question:
Which trophic level does a fish represent in this food chain? algae S mosquito larva S dragonfly larva S fish S man.
Which of the following does NOT accurately identify an aspect of adolescence that hampers effective responses to adolescent depression?
Answers
Adolescents are fundamentally untrustworthy when it comes to their emotional worlds does not accurately identify an aspect of adolescence that hampers effective responses to adolescent depression.
What is Depression?This is referred to a mental disorder which is characterized by reduced mood and loss of interest in activities.
Adolescents are not fundamentally untrustworthy and they have difficulty recognizing depression.
The options include:
Adolescents attach stigma to depression.Adolescents often have difficulty recognizing depression.Adolescents tend to seek help from informal rather than professional sources.Adolescents are fundamentally untrustworthy when it comes to their emotional words.Read more about Depression here https://brainly.com/question/21711771
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Water molecules moves out of a red blood cell and its shrivels is an example of.
A Protein Channel
B Simple Diffusion
C Facilitated Diffusion
D Osmosis
Answers
Answer: D Osmosis
Explanation: Water moves into and out of cells by osmosis
Mr. Torres interacts positively with his students. Which statement describes the BEST evidence to support this?
Answers
Answer:
The answer is D He listens to their ideas and asks for their opinion.
Explanation:
1) Which of the following types of heterotrophs eat other animals?
A. omnivores
B. herbivores
C. carnivores
Answers
Answer:
A & C (Omnivores and Carnivores) eat other animals.
Answer:
A and c
Explanation:
heterotrophs eat other animals?
. omnivores and carnivores
Recent research indicates that animals, plants, fungi, and protists may be organized into Blank______ within the domain Eukarya based on molecular similarities rather than historical classification into kingdoms. Multiple choice question. supergroups subtypes biomes epitopes
Answers
Recent research indicates that animals, plants, fungi, and protists may be organized into subtype within the domain Eukarya.
What is subtypes?Subtypes is a division of a main type. It is a small part of a group that contains similar elements or organisms. Similar organisms are put into one subtype while on the other hand, the organisms that are different from one another are placed into different groups. Recent studies indicate that animals, plants, fungi, and protists may be organized into subtypes within the domain Eukarya that is based on molecular similarities rather than historical classification into kingdoms.
So we can conclude that subtype is the correct answer for the question.
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Which of the following best describes high G+C bacteria
a.) Gram-negative bacteria that include spirochetes, planctomycetes, and the CFB group
b.) A gram-positive group that includes Bacilli
c.) Gram-negative bacteria that include a large group composed of five classes of bacteria
d.) A gram-positive group that includes the Actinobacteria
Answers
Answer:
d.) A gram-positive group that includes the Actinobacteria
Explanation:
The best description of high G+C bacteria is option d) A gram-positive group that includes the Actinobacteria.
High G+C bacteria, also known as high guanine-cytosine bacteria, refer to a group of bacteria characterized by a high proportion of guanine (G) and cytosine (C) nucleotide bases in their DNA. This characteristic can be determined by analyzing the DNA composition of bacteria.
Option d) states that high G+C bacteria belong to a gram-positive group that includes the Actinobacteria. This is the most accurate description of high G+C bacteria. Actinobacteria are a phylum of gram-positive bacteria, known for their high G+C content. They are characterized by their filamentous growth and the formation of branching networks of hyphae, similar to fungi. Actinobacteria include a diverse range of organisms, such as the genus Streptomyces, which produce many antibiotics, and Mycobacterium, which includes the species responsible for tuberculosis and leprosy.
Options a), b), and c) are not accurate descriptions of high G+C bacteria. Option a) mentions gram-negative bacteria and includes spirochetes, planctomycetes, and the CFB (Cytophaga-Flavobacterium-Bacteroides) group, which are not specifically associated with high G+C content. Option b) refers to a gram-positive group that includes the Bacilli, which generally do not have a high G+C content. Option c) mentions gram-negative bacteria composed of five classes, but it does not specifically address high G+C content.
Therefore, option d) is the most accurate description of high G+C bacteria, as it correctly identifies them as a gram-positive group that includes the Actinobacteria.
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Deforestation and the burning of fossil fuels such as coal and oil have led to higher concentrations of carbon dioxide in the atmosphere
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Deforestation and the burning of fossil fuels such as coal and oil, are the two main causes of higher concentrations of carbon dioxide in the atmosphere.
The statement "Deforestation and the burning of fossil fuels such as coal and oil have led to higher concentrations of carbon dioxide in the atmosphere" refers to the fact that human activities have significantly increased the amount of carbon dioxide in the atmosphere, leading to a rise in global temperatures and climate change.
Deforestation contributes to this problem by reducing the amount of trees that absorb carbon dioxide during photosynthesis, while the burning of fossil fuels releases stored carbon into the atmosphere. These actions have negative impacts on the environment, including increased global temperatures, rising sea levels, and more frequent extreme weather events.
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--The complete question is, Deforestation and the burning of ___________ such as coal and oil, are the two main causes of higher concentrations of carbon dioxide in the atmosphere.--
help asap giving branlist!!!!!
Answers
Answer:
The answer is option B
Explanation:
In a parasitic relationship, it involves two different organisms of different species.
Mostly one of the organisms that's the parasite mostly benefits by feeding on its host and releasing toxic substances causing harmful effects on the organism.
So from the question the correct answer is the second option
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what happens when the birthrate and the death rate are the same?
Answers
Hence population remains stable without any disturbance
identify examples of RRAD from the process of photosynthesis
Answers
Answer.....
Explanation:
5.17.f - test: module five match the term and description group of answer choices influenced by darwin's observations and the observations of others [ choose ] breeders choose desirable traits [ choose ] organisms with more advantageous traits produce more offspring [ choose ] will not create new species [ choose ] will cause minor changes in already existing species
Answers
1. breeders choose desirable traits - Will cause minor changes in already existing species
2. organisms with more advantageous traits produce more offspring - Will not create new species
Breeders choose for little alterations in already existing species when they choose desirable features. These modifications may aid development or disease resistance, or they may be just cosmetic, such as a change in size or colour.
Breeders can raise the probability that desired qualities will be handed down to the following generation by mating individuals who already have such features. The population's prevalence of the desired characteristic rises with time. However, this process only modifies previously existing species; it does not produce new species.
In addition to having more favourable features, these organisms will also have higher rates of successful reproduction, which means they will have more progeny than other organisms in the population.
The desired characteristic will become more prevalent in the population as a result, but no whole new species will be created.
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For a dominant/recessive trait, do the offspring of identical parents always look like the parents?
Answers
Answer:
No, they don't always look like the parents.
Explanation:
They won't always look like the parents because from each parent, they will receive different dominant and recessive traits. In addition, certain traits skip generations or don't get passed down. For example, you can have 2 parents with red hair and have dark brown hair, but have a child who DOES have red hair.
Chloroplasts in plant cells carry out the process of cell respiration.
O True
O False
Answers
diagrams on active transport
Answers
Answer:
Image attachedExplanation:
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what ingredients in fecal matter help with the growth of aquatic plants and algae?answer must be from the text
Answers
Fecal matter contains, among other substances, phosphorus, ammonia, and nitrogen, which are a source of nutrients for plants.
Potatoes are native to Monuntainous areas of Bolivia and Peru in South America, but are now grown widely around the world. What kinds or environmental conditions do you think areas must have in common for a crop to be successful around the world?
Answers
Answer:
Potatoes grew in the mountainous regiosn of Bolivia and Peru because they prefers such climates. Climates that are on the cold side but not so cold that the ground would be frosty. A temperature of between 60° to 70°F is considered ideal and anything above 80° F is considered too warm for them even though they have been known to adapt.
The soil should be very mildly acidic with a pH of between 5.0 to 5.5. Potatoes prefer to be grown in the full presence of the sun in well drained soils that are not compact or constantly wet.
The Environmental conditions are therefore;
Cold but not too coldWell drained soilMildly acidic soil.Abundance of sunlight.Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisphere are tilted more toward or away from the Sun. What happens as the Earth moves so that the Northern Hemisphere is tilted more toward the Sun?
A.
The length of daylight increases in the Southern Hemisphere.
B.
The distance from the Sun decreases in the Southern Hemisphere.
C.
The average temperature decreases in the Northern Hemisphere.
D.
The amount of sunlight increases in the Northern Hemisphere.
Answers
Answer:
D.The amount of sunlight increases in the Northern Hemisphere
Explanation:
did this in study island trust me guys
What is meant by the term apical dominance
Answers
Answer:
inhibition exerted on the lateral buds by the apical meristems of the shoots. ... Advance bouquets: buds that originate from buds located along the axis of the tree.
The lungs of an animal, shown here, exchange gases with the environment to allow for oxygen to move in and carbon dioxide to move out. The description of the function of the lungs is most similar to the explanation of what organelle within the eukaryotic cell?
A cell wall
B cytoplasm
C nucleus
D cell membrane
Answers
uses of biotechnology in washing powder making
Answers
Answer:
Here are some uses of biotechnology in the production of washing powders:
Enzymes: Enzymes are commonly used in washing powders to enhance the cleaning efficiency and remove various types of stains. Proteases, amylases, lipases, and cellulases are examples of enzymes used in washing powders. These enzymes break down protein-based, starch-based, lipid-based, and cellulose-based stains, respectively, into smaller fragments, making them easier to remove during the washing process.
Bio-surfactants: Surfactants are essential components of washing powders as they help to remove dirt and oil from fabrics. Biotechnology allows for the development of bio-surfactants, which are surfactants derived from biological sources, such as bacteria or yeast. These bio-surfactants are more environmentally friendly than traditional surfactants as they are biodegradable and have lower ecological impact.
Microbial Strains: Biotechnology can be used to isolate, characterize, and optimize microbial strains that produce enzymes or bio-surfactants. Microorganisms, such as bacteria and fungi, can be engineered or selected for their ability to produce specific compounds that enhance the cleaning performance of washing powders.
Genetic Modification: Genetic modification techniques can be employed to enhance the properties of microorganisms used in the production of enzymes or bio-surfactants. This allows for the creation of microorganisms with improved characteristics, such as increased enzyme activity or enhanced stability under varying conditions.
Fermentation Processes: Biotechnology facilitates the use of fermentation processes to produce enzymes and bio-surfactants at a large scale. Fermentation involves the controlled growth of microorganisms in bioreactors, where they produce enzymes or bio-surfactants through metabolic processes. This enables the efficient and cost-effective production of these ingredients for use in washing powders.
Explanation:
25. (03.06 LC)
In which zone would you expect to find the least amount of biodiversity due to the variable conditions it experiences? (3 points)
Sublittoral zone
Low intertidal zone
High littoral zone
O Middle intertidal zone
Answers
In the High Littoral Zone one can expect to find the least amount of biodiversity.
What are Littoral Zone?
When sunlight is present at the sediment level, aquatic plants that are partially to totally submerged flourish and are said to be in the littoral zone of an aquatic ecosystem(river, lake, or sea). Numerous nutrients, dissolved oxygen, water velocity, and alternate periods of submersion and exposure are other characteristics.
What is Biodiversity?
The variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural environment are all included in what is known as biodiversity. These various species and organism collaborate in complicated web-like ecosystems to keep things in balance and support life.Biodiversity supports everything in nature that we need to survive: food, clean water, medicine, and shelter.
Therefore, High Littoral Zone would be the correct answer.
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Question 1 of 10
Which element of the scientific process includes the greatest amount of
information about living things?
OA. A hypothesis
OB. A theory
OC. A conclusion
OD. A data record
SUBMIT
Answers
According to the research, the correct option is B. A theory is the element of the scientific process that would include the greatest amount of information about living things.
What is a theory?It is a set of ideas or proven hypotheses that explain some phenomenon studied or a scientific description based on a set of observations or experiments.
In this sense, it is a logical system that is established from observations, axioms and postulates, and is formed by the set of concepts, propositions and definitions that are related to each other with the aim of explaining the given phenomenon.
Therefore, we can conclude that according to the research, the correct option is B. A theory is the element of the scientific process that would include the greatest amount of information about living things.
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Investigation Why are cells so small?
Answers
Answer:
they build up over time making its shape
Explanation:
In this diagram of a long bone, which type of bone marking is circled? anatomical drawing of a long bone showing the internal structure, with the point where the blood vessels enter circled
Answers
Answer:
the answer is osteon
Explanation:
in physiological Genotype and phenotype disorder male and female in reproductive system
Answers
Both males and females can experience reproductive system disorders. These disorders can be caused by genetic factors, hormonal imbalances, structural issues, infections, or other medical conditions. In males, these disorders may include erectile dysfunction, infertility, testicular disorders, prostate problems, and hormonal imbalances. In females, they may include menstrual disorders, polycystic ovary syndrome, endometriosis, uterine fibroids, ovarian cysts, infertility, and hormonal imbalances. Treatment options vary depending on the specific disorder and may involve medication, hormonal therapy, surgery, or assisted reproductive technologies.
Why do teens tend to make riskier decisions than adults?
Answers
Brain Development: The brain undergoes extensive development and reorganization during adolescence, particularly in the prefrontal cortex, which is responsible for decision-making, impulse control, and weighing consequences. This region develops at a slower pace compared to the reward-seeking regions of the brain, such as the limbic system. As a result, teenagers may be more driven by immediate rewards and less inclined to consider long-term consequences.
Sensation Seeking: Adolescence is characterized by heightened sensation seeking and a desire for novel and exciting experiences. Teenagers often seek out new sensations and engage in risk-taking behaviors as a way to explore their own identity, gain independence, and test boundaries. The pursuit of thrills and excitement can overshadow the potential risks involved.
Social Influence: Peer influence plays a significant role during adolescence. Teenagers are highly attuned to social acceptance and approval, and they may engage in riskier behaviors to fit in, gain peer recognition, or conform to social norms within their peer group. The desire for social status and acceptance can override concerns about potential negative outcomes.
Incomplete Experience and Judgment: Compared to adults, teenagers have less life experience and exposure to various situations, making it more challenging for them to accurately assess risks and make informed decisions. They may lack the cognitive tools and judgment skills to fully evaluate the potential consequences of their actions.
Emotional Intensity: Adolescence is a time of heightened emotional intensity, with teenagers experiencing intense emotions and seeking ways to regulate them. Risk-taking behaviors can serve as a means to cope with or regulate these emotions, providing temporary excitement, distraction, or a sense of control
Please select the word from the list that best fits the definition
get their food from breaking down dead material
Answers
Answer:
decomposer is the word that best fits for the definition.
hope this helps you ☺️☺️
What compound is this?
Carbohydrates
Lipids
Nucleic Acids
Proteins
