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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 2.54E-05?

0.000025

move the decimal pt by 5 places to the left because it is e to the power negative 5.

When does the scientific method become valuable?

One user said:

The scientific method becomes valuable when you internalize it as a process to solve problems in life.

Examples of health problems: toothache, fever, flu,sore eyes, stomachache, indigestion, and many more. It has worked for hundreds of years.

Preventing heat loss by radiation and conduction?

To prevent heat loss by radiation, you can use insulating materials like fiberglass or foam to create a barrier that reflects the heat back into the space. To prevent heat loss by conduction, you can use materials with low thermal conductivity, such as wood or foam, to reduce the transfer of heat through solid materials. Proper sealing of gaps and cracks in doors, windows, and walls can also help minimize heat loss by conduction.

One of the oldest methods of transmitting motion is the use of what?

One of the oldest methods of transmitting motion is the use of mechanical gears. Gears consist of toothed wheels that interlock to transfer rotational motion from one shaft to another. They are commonly used in machinery and mechanisms to control speed, torque, and direction of motion.

What type of material is the most insulated for the inside of a lunch box?

an air gap would be best - but best of all would be no material ( a vacuum -similar to a vacuum flask for drinks ) as most of the heat is lost or gained by conduction- polystyrene is popular as it's cheap and easy to work with- expanded polyurethane foam is popular as it can be injected into the cavity- but anything that's non toxic and has a lot or air gaps inside it will work fine to line the lunch box with!

How does heat generate light?

Heat is the amount of energy a single atom has, and this energy causes the electrons in an atom to change energy levels. The light is produced when an "excited" electron has gained enough energy to raise to a higher level via heat, and then falls back to a lower energy level, releasing the energy as light. The higher the amount of energy put into an atom via heat, the more intense the light will be due to a higher release of energy.

The factor a scientist changes in a controlled experiment is the?

The factor a scientist changes in a controlled experiment is called the independent variable. It is the variable that is deliberately manipulated or varied by the scientist to observe its effect on the dependent variable.

Maximum velocity which can be provided by cyclotron to a particle?

The maximum velocity that a particle can reach in a cyclotron is limited by the speed of light, which is approximately 3 x 10^8 m/s in a vacuum. As particles in a cyclotron are accelerated closer to the speed of light, they experience relativistic effects that make further acceleration more difficult.

Diagram of iron nail being magnetized?

To magnetize an iron nail, align the nail along the magnetic field lines of a magnet and rub one end of the magnet against the iron nail in the same direction multiple times. This process will cause the domains in the iron nail to align in the direction of the magnetic field, creating a magnetized iron nail.

Role of pyridine in darzens method?

Pyridine serves as a base catalyst in the Darzens reaction, facilitating the formation of the epoxide intermediate by deprotonating the α-haloketone. It promotes the cyclization of the α-haloketone to form the glycidic ester, a key step in the Darzens reaction. Additionally, pyridine helps in the removal of the proton from the α-carbon of the α-haloketone to increase the nucleophilicity of the carbon, which enhances the reaction efficiency.

Why hydrometers are based on Archimedes principle?

Hydrometers are based on Archimedes' principle because they work by measuring the displacements of liquid when immersed. According to Archimedes' principle, the buoyant force acting on an object in a fluid is equal to the weight of the fluid displaced by the object. By measuring the amount of liquid displaced by the hydrometer, its density and hence specific gravity can be determined.

When the result of an experiment is true what is this called?

The word you're probably looking for is "confirmation".

Technically, the result of an experiment is always "true", in that it represents what really happened. This may or may not be what you expected to happen. and there may be factors you're unaware of, but still, the result is truly what did happen.

Is anti-matter a state of matter?

Not as such, no. Antimatter is just matter that is charged backwards from what we think of as "normal" matter. it can be a solid, liquid, gas or plasma just like normal matter. the only difference is that antimatter uses positrons and anti-protons instead of electrons and protons to create an atom.

When basket is use in dissolution method?

Baskets are commonly used in the dissolution method in pharmaceutical analysis to hold the dosage forms being tested, such as tablets or capsules. The basket allows for uniform immersion of the dosage form in the dissolution medium, ensuring accurate and consistent results in determining drug release rates. It also provides a barrier to prevent disintegration or breakage of the dosage form during testing.

Are there more pure substances or mixtures found in the world?

Mixtures are more common in the world compared to pure substances. Mixtures are combinations of two or more substances that can be physically separated, whereas pure substances are composed of only one type of substance and cannot be separated by physical means.

A bomber drops a bomb vertically over the target why it misses the target give scientific reason?

a bomber does not drops its bomb vertically above the target because when the bomb is released its motion becomes projectile motion in which horizontal component remains constant and vertical component changes throughout the motion therefore it does not achieve its target

How do you prove whether the color of food or drinks affect whether or not people like them?

This is a fairly easy experiment to set up, provided you can get round the fact that people can be put off if food doesn't look the way they expect. You would need to use something like a pate or custard type pudding. You can colour these without changing the taste, then ask people to rate the taste on an agreed scale.

How is the movement of electricity through air different from its movement through copper wire?

Electricity moves more easily through copper wire due to its high conductivity, while it experiences resistance when moving through air. In copper wire, electrons flow freely, creating a low resistance path for electricity. In contrast, electricity moving through air requires a higher voltage to jump gaps and generate an electrical discharge.

What is the scientific method of water filtration?

There are only three true methods of water filtration known to man. De ionization (not consumable), Distillation not easily done), and Reverse Osmosis9can be done in a home. All other filtration methods are partial filtration methods such as pleated or micron filters.

What information should you include on poster for physics bio and chemistry?

For a poster on physics, biology, and chemistry, you should include key concepts or topics in each subject, relevant images or diagrams, and any important equations or formulas. Make sure to present the information clearly and in a visually appealing way to engage viewers and help them understand the connections between the different disciplines. Additionally, include your main message or takeaway in a concise and compelling manner.

Define step 3 for the scientific method?

3 steps to the scientific method first you suppose to write down all the information you know so far and write down what you are trying to do doing yo lab bases and what material you are using doing you lab

What 2 chemicals was the Earth's first atmosphere composed of?

The Earth's first atmosphere was composed mainly of hydrogen and helium. These gases were eventually lost to space due to the Earth's gravity not being strong enough to hold on to them.

Calcium is bound by what tube additive?

Calcium is bound by the tube additive ethylenediaminetetraacetic acid (EDTA) during sample collection to prevent coagulation and preserve the integrity of the sample for testing.

Which of the following terms means tha metals can be rolled into thin sheets as in aluminum foil or beaten into complex shapes?

The term that means metals can be rolled into thin sheets or beaten into complex shapes is malleability. This property allows metals to be easily shaped without breaking.

Does lighter objects have mor or less inertia then heavier objects?

Lighter Objects have LESS "inertia". Mass is physical manifestation of inertia. Mass is weight so the more mass the more potential inertia to over-come -- either to make an object move or to stop an object once it is moving.

So, if a meteorite weighing 1 gram hits a space station weighing 1,000 tons the likelihood of the object causing damage is proportional to the speed of the meteorite; but if the meteorite weighs 1,000 tons (same as space station) the sheer mass alone would cause damage (regardless of movement because any movement would be too much.)