Science Experiments

Parent Category: Science
Experiments often conducted by students to test different scientific theories and hypotheses

Subcategories

Usually we use a mechanical or electrical meter. Gas supplies cansimply drive round a counter. Electricity can be measured inseveral ways, for instance by using part of it to turn a disc whichin turn drives a counter. Essentially we measure how much power weuse and for how long. The unit is usually...
formation of snow in clouds . conversion of frost to water vapor . condensation of rain from water vapor . evaporation of water . a candle flame . forming a cation from an atom in the gas phase . mixing sodium sulfite and bleach . baking bread . rusting iron . cooking an egg . burning sugar ....
what may happen if remove the lid of petri plate containingnutrient agar and place the lid on benchtop
rocks: igneous rocks,metamorphic rocks,sedimentary rocksect.................
It depends on the size of the magnent
Generally speaking, yes. As a general rule, the larger the bell, the lower it's pitch will be.
It has somthing like caffine in it
Yes, homogeneous mixture particles are spread evenly throughout the mixture, like lemonade.
Given a line L and apoint P. Reflection P' of P in L is the point such that PP'is perpendicular to L, and PM = MP', where M is the point ofintersection of PP' and L. In other words, P' is located on theother side of L, but at the same distance from L as P. P' is saidto be a mirror or symmetric ...
Coca Cola dissolve the calcium on the chicken bone.
dental hygienist and certified nurse assistant are jobs in what career pathway ?
This is totally unanswerable. The temperature of the water dependson its total environment. Whilst the sun is a source of energy, itmay be shining on the outside of the dark room and heating it up.There may be other heat sources keeping the room warm. There may bea wind blowing outside, keeping the...
Yes, but remember: it's okay to be wrong!
That depends, what are you doing with the dry ice? If you are testing how it would melt, the title could be "Dry ice in melting stage" or :How does dry ice melt?".
Scientific method is described as a scientific approach to a problem. To solve a problem you must first find the problem, access it, hypothesize a solution, illustrate your solution, try the solution, and then finally try it. If this does not work start over.
Yes! Not many people know this, but it actually can. I had tons of fruits + a potato in my science project, which was to see what would produce the most electricity. My hypothesis, was of course, a lemon, but I came to see that somehow, the pear was higher than everything else, even the potato! With...
You need to control variables in an experiment so as to make surethat only the variable you are testing and changing is the oneaffecting the results of your experiment. For example, in anexperiment to find the effect of light intensity on the rate ofphotosynthesis of plant, you'll change light by...
Pinwhel connected to a coil of wire that rotates within themagnetic field of a (or 2) permanent magnets.
1. generates/gives new information about an event or phenomena. 2. produces new material 3. solves an existing community problems.
By laser gun I'll assume you mean laser based directed energy weapons. The most common way is through harnessing the energy of chemical reactions such as in COIL lasers or DF lasers.
Amino acids are organic molecules which proteins are build from. There are twenty. However there is two amino acids which are acidic: Aspartic acid and glutamic acid.
The two factors influence one another since air is the keyrelationship between them: the rate of motion of air and the degreeof hotness or coldness of a substance.
All radio (and TV and GPS and cell-phones [all of which are really radios]) work by transmitting and/or receiving electromagnetic waves.
The use is telling how hot or cold the room is
areas of rising air and low pressure . When air rises it cools, and the moisture it containscondenses out as clouds, which eventually produce precipitation.
Aluminum is used to make foil because it had a high melting temp. and it is quite flexible.
Igneous rock is formed when magma cools and solidifies Magma can be forced into rocks, blown out in volcanic explosions
saint helena in south africa aleutian island mariana island tonga in pacific ocean
Trade winds, Prevailing westerlies, prevailing easterlies, Arctic,Antarctic,
The solvent, usually water, is boiled off by the addition of heatenergy, often under reduced pressure Condensation is the opposite of evaporation and has the sametemperature as the BP of the liquid. When heat energy is removedfrom a gas or vapour, it begins to condense
Dependent upon the variables, you need to take into consideration factors that can affect the outcome of the result; what will make the result vary in any way. If this, for example, entails the variable to be kept constant time, you will monitor the time and repeat it throughout the experiment. ...
It is not possible to draw a structural formula in the Answers texteditor.
The genetic experiments Mendel did with pea plants took him eightyears ( 1856 - 1863 )and he published his results in 1865. During this time, Mendel grewover 10,000 pea plants, keeping track of progeny number and type.
It is difficult to determine the absolute age of a sedimentary rockbecause sedimentary rocks are made up of diverse particles that areall different ages. As a result radioactive dating can onlydetermine the age of the particles, not the whole rock.
Two, the dependant and independent variable. The independent variable is what you are changing in each test and the dependant variable is what factor is being changed in it. There is also the baseline data which you are comparing everything to. For example if you are doing an experiment of whether...
Electricity is "created" when certain chemicals react together.We use chemically- made electricity to power many machines fromflashlights to a watch or sometimes a car. Yes, there are cars thatrun on electricity! The devices that store electricity are calledbatteries. Electricity can also be used to...
i would say fall. only because of the nature changing leaves. over time, you may not notice but all of a sudden you see branches,no leaves. great experiment!
This is a fairly easy experiment to set up, provided you can getround the fact that people can be put off if food doesn't look theway they expect. You would need to use something like a pate orcustard type pudding. You can colour these without changing thetaste, then ask people to rate the taste on...
United States. 5079.53. 5860.38. 5902.75. 19.78. 7%.
at the top of the ramp the toy has a certain amount of potential energy . The amount of this energy depends on the height of theramp and the weight of the toy. (The toy's weight is dependent onits mass and the force of gravity.) As the toy rolls down the rampthis potential energy is converted to...
The characteristics of gases are: . no definite volume . no definite shape Ability to assume the shape of its container Low density apex . It has no definite shape or volume. are the -thing which is hard to see
through bilateral nervous system
The chemistry behind even the most simplistic of experiments canbaffle most, such as the bubbling as a result of salt being addedto soda. Soda itself is already "bubbly" due to its carbonation,but add a dash of salt and it bubbles even more violently than onits own. This bubbling effect has to do...
south central Indiana , United States, between Bloomington and Bedford
it helps in bringing to a conclucion whether we are right or wrong
genus, then species (homo=the genus, sapiens=the species)
the techniques... the ways.... u adopt is the method adopted
Well, what i do is make fake data and if you need pictures of the experiment get them off the computer and call it your pictures. If you for whatever reason cannot get your project done on the last night you can go to freesciencefairproject.com and it will show you answers to your project ;)
The scientific method is a series of steps taken to answer a question (usually used for scientific experiments). The steps basically are: 1) ask a question 2) Do research on the subject 3) State your hypothesis (educated guess of what you think will happen) 4) Test hypothesis with an...
Usually fluids get denser when the temperature drops. They getdenser and denser until they turn solid. The same thing happens towater except that water is the densest when it is around 4°C. Whenthe temperature drops towards 0°C it's density lowers. And also the liquid form is denser than the...
an explanation of an observation
This is a non starter because horoscopes may be fun but they arenot science. Even if you set out to find out if there arecorrelations between star signs and anything else, you are notgoing to get a large enough sample size to be meaningful. Why notdo something astronomical instead, perhaps a solar...
no it isn't a physical change it doesn't change the actual chemical properties of the hair
When ions are formed an atom, molecule, or substance has one oremore electrons removed or added to give it a net charge.
The results of an experiment are called your data.
mini wind turbine, non neutonion fluids, circutry
There isn't really a "purpose" for harmful bacteria, or anythingelse, in the scientific sense (perhaps what you really meant to askwas "Why did God/the gods create harmful bacteria?" but then youshould have put it in the Religion category). Some bacteria are "harmful" because that helps them spread...
something that a person thinks that is true that other peoplequestion
An idea like that is in a scenario when research on the idea canprove it right or wrong.
it mean the result of your whole project like a short summary
All single celled organisms are placed under Kingdom Protista. Thiskingdom forms a link between other kingdoms of plants, animals andfungi. Members of Protista are primarily aquatic in nature.
How much sugar, how much water, how warm is "warm", are youstirring it or not, is the sugar powdered, in the form of smallcrystals, in the form of rock candy ... there are so many variablesthat it is impossible to give an answer to a question this vague. However, even if you had given that...
The melting point is the temperature at the solid and liquid statesof the material are in equilibrium; if the temperature is even veryslightly above the melting point, the material will melt, and ifit's even very slightly below, the material will freeze. Technically the melting point depends on the...
Mitochondria is the "power house" of cells, it's what provides energy.
Since the late seventies, the Saudi Arabians have been studying the feasibility of towing an iceberg to utilize as a source of freshwater. There are several articles on the study. It's an interesting read.
1. Purposing-students decide what particular learning task toaccomplish with the teacher allowing them to decide on thier own. 2. Planning- 3. Demonstration Proper 4. Executing 5. Evaluating
You have to remove yourself from any personal interest in the subject. This is not easy to do. With strict discipline it is possible however. Just remember that true science accepts all possible outcomes, not just the ones you want.
because it iz very bad for u u because it iz very bad for u u
First you need to understand what milk is, other than a just a white liquid you get from mammary glands. Milk is an emulsion of fat, water, lactose (a type of sugar) and a mixture of proteins (loads of other stuff, but these are what we will talk about). The small fat globules are surrounded by a...
The outcomes must be repeatable because if the outcome keepschanging, then something must have changed during one of theexperiments, giving you the different outcome.
Tubes or rings inside a plant
I have an ongoing issue with my bladder or uninary track. The bestway to describe it at first was that I was getting performanceanxiety while having to urinate in a public restroom or leaving aurine sample while being filmed at my methadone clinic twice aweek. I had no problem doing this for a long...
The Scientific Method was designed to gather, test, and explain information.
Buoyant force is entirely the result of gravity. In a gravitational field, we find denser objects sinking in whatever medium they are in (usually air or water) and less dense objects, if the density is lower than the surrounding medium, floating. In the absence of a gravitational field (or in free...
No To form a hypothesis is an attempt to explain something just by your own thought (could be anything, but typically an observation, phenomenon, or some other scientific problem). To be a "valid hypothesis" the hypothesis should be testable (typically through empiric investigation) ... and it...
think of a question that you ask your self a lot about then do alot of reacherch and be origanal and have fun.
question,hypothesis,experiment,collect data,conclusion.