Science
The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.
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What instrument measures humidity?
A hygrometer is an instrument that measures relative humidity in the air. One common kind of hygrometer is a psychrometer, a...
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When was nylon invented and do the letters NY and LON stand for New York and London?
No it doesn't mean NY and LOndon. It was a marketing term invented by a team at DuPont. They went through several names,...
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What superstitious beliefs have a scientific basis?
Superstitious belief, by definition, have no scientific basis. Science requires that ideas are tested in a way that is repeatable...
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Can leaves that are not green make food?
Yes. Note that the 'green' that you are referring to is caused by chlorophyll, that is not the only compound that can extract...
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Why is the pan handle made of plastic?
The first and last answers simply are not correct, nor do they answer your question. The second, middle question is much better,...
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What are the exact ingredients in Di Cal?
Di Cal is an abbreviation for Dicalcium Phosphate. The elemental makeup is CaHPO4 • 2H2O. Although it can be derived from...
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Has science done more harm than good?
Science is a process of trying to determine the truth. Using the scientific method, one investigates a question, conducts...
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Name any 5 precautionary measures inside the laboratory?
1. Familiarize your self with the laboratory.2. Use common sense. 3. Use a safety gear when necessary - particularly eye...
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How many bicycles are there in the world?
Well for the last 3 years about 300 million bicycles were produced Worldwide (Bicycle Statistics: Usage, Production, Sales,...
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Is firework a chemical reactions?
Yes, the gunpowder reacts with oxygen. The oxygen comes from oxidizers perchlorates, chlorates, nitrates, permanganates,...
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Can you explain Science without philosophy is blind and philosophy without science is empty?
Science without philosophy has no guide. It researches pointless things, like different colors of mushrooms, rather than what we...
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Does a UV wavelength of 395-410 nm work as an black light?
Yes, a "black light" is an ultraviolet light with wavelength of about 395-410 nm.
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What happens when a non polar solute is introduced into a polar solvent?
They will remain separate, or distinct, in forms.It will not dissolve - only polar molecules dissolve in polar solvents.Non-Polar...
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What is the trade name for polyester chiffon?
This is known as Qiana. Qiana was developed by DuPont as a subsititute for silk, and was introduced in 1968. It was popularized...
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What is it when energy from hot cocoa melts a marshmallow placed in it?
This is convection. Convection is the effect you get when hotter parts expand and have lower density than cooler parts. What you...
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How are gases unique?
Gases can be compressed with little force used. Solids and liquids are virtually incompressible. If you were to set up an...
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What are some materials or things that change from solid to gas?
Sublimation is where a solid turns into a gas directly without a liquid stage. Many solids are able to do this under the right...
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Why is science defined as a product and a process?
This is because science is not just the information presented (the product), but also the way in which that information has been...
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Do sports involve science?
Yes, sports involve a lot of science. Different sciences are significant for different sport. Physics plays an important role....
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How do scientific laws describe nature?
Scientific laws are formed from repeated experimental observation and apply to like conditions identifying relationships of some...
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What instrument measures time?
Clocks and chronometers?watch, water watch and if non techincal then sun and shadowThe instrument used to measure time is called...
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When is an experimental variable good?
A experimental variable is good when you are trying to test an experiment. A variable may be easily controlled, isolated, and...
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What is hydrophobic exclusion?
When non- polar molecules "shrink" from contact with water; they are considered hydrophobic. Hydrophobic means "water fearing",...
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What are some products of combustion?
water, carbon dioxide, carbon monoxide (in incomplete combustion)
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What is the meaning of 'honesty of scientific attitude'?
To describe things as they truly are or behave, without any prejudice to force or "massage" or select observations to fit any...
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Where do visible light waves come from?
There are a great many sources of visible light. They include: -- stars -- fire -- volcanos -- lightning -- incandescent...
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How can you increase the frictional force between two surfaces?
The friction between two surfaces can be increased by some or all of the following -Increase the total area of direct contact...
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What does hypocaust mean?
It is Latin for Under (Hypo) Heat (Caust) It was the Roman method of underfloor heating. A hypocaust (Latin hypocaustum, Greek...
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Why is vacuum a good insulator?
A vacuum is a good insulator because it prevents the transfer of heat by eliminating the medium (matter). A perfect vacuum is...
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When white light passes through a prism which will be bent more the red or the green light and explain why?
In white light various colors of light are mixed together, primarily blue yellow and red. When white light in air passes through...
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What is the scientific attitude and what attitudes and characteristics define a good scientist?
A good scientist should possess the following qualities: 1. A scientist must be curious about the world Example: Galileo...
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How many branches of science are there?
There are two. These are the Natural Sciences, and the Social Sciences.
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How do you test for cornstarch?
You can test for starch in general using the chemical iodine test. If starch is present, a solution of iodine (I2) turns...
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Does platinum float or sink?
This depends what you put it in. If you put platinum in water it will sink. Water has a density of 1 g/mL whereas platinum...
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From which site can we get download for pradeep's fundamental physics for class 11?
The book is copyrighted and cannot be downloaded but can be purchased. There are a few sites online to purchase the book.
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Why are plants able to slow down soil erosion?
Plants help to check soil erosion considerably. During flood or excessive rain, the soil gets washed away by the flow of water....
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Why do insulators not conduct electricity well?
In insulators the bond energy between atoms in the material they form is very high. We need to give large energy to overcome that...
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How much energy is needed to evaporate 1g of water at room temperature?
1 Calorie per degree C. If room temp is 72 degrees C then 28 calories to get to boiling then the it takes 540 calories to water...
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How do cells acquire energy?
By the process of respiration. In this process, glucose is oxidised to carbon dioxide and water (aerobic) and ATP is produced....
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Do sound waves travel forever?
No, they dissipate, broken up by other waves, or simply by growing to attenuated. They dissipate as the wavefront continues to...
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A blended mixture of two or more mixable substances is a?
This is a solution.
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What are observed results?
These are results which you look at or observe with your eyes. This can often be called empirical results.
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Why does bleach evaporate faster than water?
Originally, bleach is a strong base and neutralizes when it is mixed with an acid. The molecules of bleach are loose and weak...
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Does limestone conduct electricity?
Metals are very good electricity conductors. Metalloids are half metals, half non- metals which can conduct electricity, but not...
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What is the Opposite of empirical evidence?
The opposites are Theoretical and Anecdotal.Empirical evidence is the result of actual observation under specified rules or...
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What happens when you put a coin in coke for a week?
The coin will become much shinier. If you put ketchup on a coin for 4-5 mins. it willalso become shinier.
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What is Agric science?
Agricultural science is a broad multidisciplinary field that encompasses that parts of exact, natural, economic and social...
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How do you increase the angular velocity of a rotating object?
Angular velocity just means how fast it's rotating. If you want more angular velocity, just rotate it faster or decrease the...
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What are the advantages and disadvantages of amalgamation?
The advantages of amalgamation are the following: Bigger cityThe disadvantages to amalgamation are the following: you have less...
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What is a very small tube that carries blood?
A capillary tube is used to carry a very small amount of blood. It is called a capillary (tube) because the movement in side is...
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What is work done by a person in moving a block of mass 2kg on a frictionless floor up to a distance of 5m?
Scientifically, work is defined as force X distance. In this case, we know the distance (5 m), but we do not know the force. If...
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Why naphthalene sublimes at room temperature if its melting point is 80 degree?
the definition of sublime is when a material goes directly from solid to gas phase, without melting first. If the material is...
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What is an example of something that moves but is not alive?
Things that move that are not alive: A rock affected by erosion. The Earth and all the planets move around the Sun and they...
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What would be the best topic for environment science project?
Best woould be subjective. However, one good example is to demonstrate effects of a liquid on plant growth. The liquid can be one...
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Benefits and Limitations of using models?
The limitations of models in science are that they don't show you the actual thing, models are very different.The benefits of...
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Graph does salt or sugar water evaporation?
Yes. The water will evaporate and leave the residue of salt or sugar. A process crystalization is also there from which solids...
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Will a saturated solution remain saturated after heating?
A saturated solution will gradually lose the solute as it cools. Heated solvents are able to carry more solutes because there is...
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How many types of suspending agent is there?
Suspending agents may be used in many different processes. The types of suspending agents will depend upon the processes, with...
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What are the three different ways of stating a hypothesis?
A hypothesis can be one-tailed to identify a function in one of directions, or it can be two-tailed to idenitfy the funciton with...
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Why does water prevent a balloon from popping?
A balloon will pop when the pressure inside of it exceeds the pressure outside of it by so much that the balloon material tears,...
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Why do you need 2 holes to pour juice out of a can?
The fluid leaving the can must be replaced by air. The fluid trying to leave with only one hole is fighting a vacuum being...
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What is a glass slab?
it is a substance made of glass having 3 dimensions and is cuboid shaped. It does not deviate the light. This means that the...
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What are scientific models used for?
These may be used to represent things that might be too large or impossible to fit into one room. A globes, maps, and drawings...
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Why placing a lid over a cup of hot chocolate keeps it warm longer?
If you place a plastic cover over a cup of hot chocolate it stay hotter longer because the heat is trapped in a material that...
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What will vibration of air molecules produce?
Vibrating gasses, like air, produce longitudinal waves of pressure, some of which can be perceived as sound. If the molecules are...
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How much does one pound of Gadolinium cost?
The price constantly changes but it ranges from $150 to $210 per kilogram. This is a commercial material that most likely cannot...
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What are 5 examples of gases found at home?
5 examples of gases found in the normal home environment include; oxygen (air), nitrogen (most abundant element found in the...
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How much does a gallon of ice weigh?
8.35 pounds.Because ice is a solid, technically you cannot measure ice using gallon as the units. However, a gallon of water that...
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Need For Scientific Attitude in School Children?
This is subjective. Many people believe there is a need for fostering a scientific attitude in schools and in children....
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Differentiate between physical science from biological science?
Physical science is the study of matter and its behavior whereas biological science deals with the study of living tissue.
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Can newton's rings exp done by mercury vapour lamp?
Mercury vapour gives out several colours of different wavelength the rings formed with different colours would get overlapped and...
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Do you agree with the scientific explanation of the world?
The answer to this is subjective and therefore it cannot be answered. Some people will agree with it and some people...
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How Uses of mirrors in daily life?
To view physical appearance by own-self.answer #2grocery store scanners use mirrors to direct the lasers, many other laser...
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What does the word plan mean in science?
The pan identifies what is to be done and the general approach to be taken. A plan can be at a low level of detail such as an...
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What are the contribution of primitive man in science?
Primitive Man is a fairly broad definition but generally any contributions need to be limited to approximately the past 24,000...
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What is non-biodegradable materials?
Non-biodegradable can be misleading, as often the subject that this term is associated with is organic matter and organic matter...
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Is test tube cloning accepted by our society?
Excellent question. Clinton abolished any scientific research regarding cloning and Bush followed suit. However, parts of...
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What is the GRASP method?
G: whats given (the information already given 2 u) R: whats required (what u have 2 find out) A: the analysis (the formula ur...
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WHAT IS the importance of moral science?
Moral science can serve as a guide to someone's life and provides a path for success in social activities and other tasks, goals,...
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How can you prevent sounds from traveling?
Sounds, once created, cannot be "prevented" from traveling. A "sound" becomes a sound only because it has already traveled, even...
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What is the Working principal of fluorometry?
Light entering a solution may pass entirely through or be absorbed partially or entirely depending on the solution concentration...
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Is it chemical or physical change when you inflate a balloon?
This is a physical change.
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What are the 3 effects of forces?
A force acting on an object with mass will result in some form of acceleration.The 3 possible effects are - acceleration,...
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Why does the rate of osmosis change over time?
As time passes the concentration gradient will decrease therefore the rate of osmosis will also decrease.
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Is non ionizing radiation harmful to living things?
Scientists generally agree it is harmful. However it is a very controversial subject, as this includes use of cell phones and...
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Can salt put out fire in fireplace?
It depends on the quantity. If you have a great load, yes. If you have a little, no. Some Class D "dry powder" extinguishers use...
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What is the scientific term of dependent variable?
The dependent variable might be termed the "ordinate". The dependent variable in an experiment is the data you are collecting. ...
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How does light travel through a camera?
Picture this... you're home for thanksgiving, its you and grandma for one big photo oportunity, big smile. A flash lets out from...
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Do brewers use corn syrup?
I know that Miller uses corn syrup. While on the other hand Budweiser uses Rice. Both use them to supplement the grains used for...
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How music industry affects community life?
It depends. usually the mood, the meaning or message which goes or is transmitted to the listeners. That affects them and their...
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Can anthrax be cured?
It's an infection. There are two types of infections, bacteria and viruses. Bacteria are complex living things, and can be...
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What is the scientific name for sight?
visual "visual" is strictly an adjective though sometimes used colloquially as an noun. The noun "sight"...
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What kind of sun rays hit the north and south pole?
Electromagnetic waves hit both the north ans south poles.
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What food substance does oil contain?
Vegetable oils used as a part of cooking or food are of the same make up as fat, but are liquid at room temperature. Basically...
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How can astronomers study space beyond Earth?
Astronomers use telescopes and launch robotic instruments as probes.
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How much money is made because of vaccine?
Very little for many vaccines. Vaccines are inexpensive to produce and many were never patented at all. Only a the newest ones...
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What is a standard atomic notation?
Standard atomic notation involves the Bohr-Rutherford diagram. This uses the number of protons, neutrons, and electrons, and also...
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Why are so many marine organisms ectotherms?
Many marine animals are ectotherms because it is too difficult to maintain an increased body temperature in water. Heat transfers...
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Who is the god of efficiency?
There is no named god of efficency in mythology. Money.
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Is iron a better conductor than water?
As an electrical conductor, iron is a better conductor than water.
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