0
Scientific Method
The scientific method is the basis of scientific investigation. A scientist will pose a question and formulate a hypothesis as a potential explanation or answer to the question. The hypothesis will be tested through a series of experiments. The results of the experiments will either prove or disprove the hypothesis. This category should contain questions and answers regarding the scientific method.
4,392 Questions
What is the meaning of sciencetific method?
The scientific method is a systematic approach to investigating natural phenomena, involving making observations, forming hypotheses, conducting experiments, analyzing data, and drawing conclusions. It aims to minimize bias and errors in the pursuit of knowledge and understanding.
Compare and contrast weathering erosion and depostion?
Weathering is the breaking down of rocks into smaller pieces, erosion is the movement of these sediments from one place to another by wind, water, or ice, and deposition is the settling of these sediments in a new location. Weathering and erosion work together to shape the Earth's surface, while deposition adds new sediment to create landforms like beaches, deltas, and sand dunes.
Most of the chemical elements can be divided into 2 groups what are these 2 groups?
Chemical elements can be divided into metals and non-metals. Metals typically have properties like luster, conductivity, and malleability, while non-metals are generally less shiny, poor conductors, and more brittle.
Which term is defined as a dry hot dusty wind that blows out of the Sahara?
The term for a dry, hot, dusty wind that blows out of the Sahara is called a "Harmattan".
Which choice has the most scientific tone?
A choice that presents factual information, uses formal language, avoids emotional language, and focuses on evidence-based reasoning would have the most scientific tone. It should also aim to be objective and free from bias.
Particles are extremely small objects that make up the building blocks of matter. They can have various shapes, sizes, and properties depending on the type of particle. For example, subatomic particles like electrons are often described as having a point-like structure with no defined volume, while larger particles like dust particles may have more visible shapes and sizes.
There is no value of 11 on the pH scale. The pH scale ranges from 0 to 14, with 7 being neutral. A pH of 11 would be considered alkaline or basic.
What are 3 organisms that help break down biomass?
- Bacteria: Various types of bacteria, such as cellulose-degrading bacteria, help break down biomass through processes like fermentation and decomposition.
- Fungi: Certain fungi, like white rot fungi and brown rot fungi, are capable of breaking down complex organic compounds in biomass, such as lignin and cellulose.
- Earthworms: Earthworms play a vital role in breaking down plant material and organic matter, as they consume and digest decaying biomass in the soil, aiding in nutrient cycling.
Explain how you would use the scientific method of how water move through plants?
To study how water moves through plants using the scientific method, you could start by formulating a question or hypothesis, such as "How does water travel from the roots to the leaves in plants?" Then, you would design an experiment to test your hypothesis, maybe by using dye to trace the water's movement. Next, you would collect data by measuring how quickly the dye moves through different parts of the plant. Finally, you would analyze the results and draw a conclusion based on the data collected.
What is an example of polymerase chain reaction?
Polymerase chain reaction (PCR) is used to amplify nucleic acids. It was invented in its current form by Kary Mullins in 1983/1986.
The template (DNA or RNA) is duplicated by a thermostable DNA polymerase - originally from Thermus aquaticus - using sequence specific primers (short single-strand oligonucleotides) that are designed to sit on either side of the piece of template that is to be amplified.
Changes in temperature are used to move through the different stages required to duplicate the DNA.
- 95°C denatures DNA to two single strands.
- The temperature is decreased to ~50-60°C to allow the primers to anneal (bind) to the 5' end of the DNA templates - the exact temperature is 5°C lower than the primer's sequence-determined melting point (Tm). At the melting point half of the dissolved primers in solution would be annealed to the template DNA.
- The temperature then climbs to 72°C where the polymerase adds dNTPs to the 3' end of the primer - most commercial DNA polymerases can elongate 1000 bases per minute. Some have "proof-reading" activity, where it can correct a wrong base it may have inserted. If the template is RNA then a reverse transcriptase is used - it reads the RNA, but makes DNA.
- The reaction is heated again to 95°C to restart the cycle. After the last cycle the reaction is held at 72°C for a few minutes to ensure that all the strands are fully elongated.
Each cycle duplicates the template, meaning an exponential increase in the amount of the target sequence. Usually, 30 cycles produce sufficient DNA for downstream applications. More cycles may produce more, but at some point the enzyme becomes less efficient or the dNTPs run out.
How do you measure earthquake strength?
Earthquake strength is commonly measured using the Richter scale or the moment magnitude scale. These scales quantify the energy released by an earthquake based on the amplitude of seismic waves recorded on seismographs. The magnitude value provides an indication of the earthquake's strength relative to other earthquakes.
What clinistix and albustix are used for?
Clinistix and Albustix both are used to test the properties of our urine. They are also very useful and important for Diabetes testing. Clinistix is used to detect the glucose in the urine and Albustix is used to detect protein in the urine
Sarah Waqar
7th orange
APS WESTRIDGE III Rawalpindi
A wind vane is a tool used to determine the direction the wind is blowing. Antique wind vanes were often made of copper. Copper is not an inexpensive metal so other metals were used such as steel.
What is the correct order for admission of a new state?
The correct order for admission of a new state involves the following steps: 1. The territory petitions Congress for statehood. 2. Congress passes an enabling act detailing the conditions for statehood. 3. The territory drafts a state constitution and holds a referendum for approval. 4. Congress approves the state constitution and officially grants statehood to the territory.
What leaf tissues absorbs sunlight?
The palisade mesophyll cells within the leaf's upper epidermis are the primary tissue responsible for absorbing sunlight in the process of photosynthesis. These cells are packed with chloroplasts, which contain chlorophyll—a pigment that captures light energy for photosynthesis.
What is the most important part of the scientific method?
Learning about the scientific method is almost like saying that you are learning how to learn. You see, the scientific method is the way scientists learn and study the world around them. It can be used to study anything from a leaf to a dog to the entire Universe.
The basis of the scientific method is asking questions and then trying to come up with the answers. You could ask, "Why do dogs and cats have hair?" One answer might be that it keeps them warm. BOOM! It's the scientific method in action. (OK, settle down.)
What are the two sources of calcium carbonate found in limestone?
The two main sources of calcium carbonate found in limestone are the remains of marine organisms such as shells, corals, and algae, and chemical precipitation from bodies of water. Over time, these sources accumulate and solidify to form limestone rock.
What is d meaning of scientific method in biology?
The scientific method in biology is a systematic approach used by researchers to formulate and test hypotheses through observation, experimentation, and analysis of data. It involves making observations, asking questions, forming hypotheses, conducting experiments, analyzing data, and drawing conclusions based on evidence. This method allows scientists to investigate and understand the natural world in an organized and objective manner.
Non renewable mineral resources?
Includes any ores or minerals that are being removed at or below the surface of the Earth, processed into a usable form, used, then burned for energy or placed in areas of disposal after use. Coal would typically be a good example.
Chocolate is a mixture because you can separate the components. In a compound you can not separate the components because they are chimically bonded. In chocolate you can separate the ingredients because they are NOT chemicly combined; therefore, chocolate is a mixture.
Yes, they are the metric unit for time. You ALWAYS use seconds for measuring time in science.
Why don't all hypothesis become theories?
A scientific theory is something that is tried and tested, and not yet disproven. It is close to being scientific 'fact' as you can get. Not all hypotheses will become theories because sometimes they get disproven. That means the hypothesis will need to be changed and tested again.
What is temperate phage superinfection immunity?
c. Repression of the phage genome - A phage coded protein, called a repressor, is made which binds to a particular site on the phage DNA, called the operator, and shuts off transcription of most phage genes EXCEPT the repressor gene. The result is a stable repressed phage genome which is integrated into the host chromosome. Each temperate phage will only repress its own DNA and not that from other phage, so that repression is very specific (immunity to superinfection with the same phage).
Reference: http://pathmicro.med.sc.edu/mayer/phage.htm
What is the factor that changes in an experiment because of the manipulated variable?
REMEMBER:ReaDY MIX.....it helps me every time... MIX stands for Manipulated Independent X-axis......so the answer would be:Independent....hope this helps!:D
Actually since the manipulated variable is independent the the factor that would change would be the responding variable which is the dependent variable so the answer would be:
Dependent or Responding Variable
