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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
What describes what happens when reactants reorganize to form products?
A chemical reaction occurs when reactants reorganize to form products. However, a chemical equation is a written form that describes what we've observed when reactants reorganize to form products.
What is the purpose of the egg and vinegar experiment?
"The presence of the acid in vinegar, forced the egg shell to soften, because of the chemical reaction of the acid and calcium carbonate in the egg shell." I edited it a little for you.
Which procedure must be followed for the results of an experiment to be considered valid?
A valid experiment is the one which is done on the basis of some facts and figures. The experiment which has a good statistical analysis is known to be valid experiment.
step 3.
What is a catchy name for a science fair project involving apples?
Agro-probia (play on the word 'agoraphobia'),
Apple-ied science,
Comparisons of apples and oranges,
Adam's Apples (if your name is Adam and you analyzed apples),
Something Rotten in the State of Decay (a fruit decay study),
Out vile spot!
An apple decay,
Orange decay keeps the common cold at bay: penicillin growth on oranges
Choice fruit nutrients,
Fruit PH'd: Comparison of the acidity of fruits,
Fruit Loupes: A magnified view of fruits (or a study on melons),
Cherry Read: comparison of varieties of cherry DNA,
Kiwi Wiki
Arbor-Eat'em: Tree Fruits
The low down on dwarf fruit trees,
What's shakin' with nut harvesting (some trees are shaken to let the nuts fall where they may).
Does chemical reactions make new materials called the reactants?
Hi there! Well, to answer your question, chemical reactions invlove two sets of substances: the reactants and the products. The reactants are the chemicals that are involved BEFORE the reactions occurs. The products are the chemicals that are formed as a result of the chemical reaction. In another words, the products are your end results. Therefore, chemicals reactions make new materials called the PRODUCTS, rather than reactants. For example in photosynthesis:
Glucose + Oxygen -----> Carbon dioxide + Water
Glucose and oxygen are your reactants, whereas carbon dioxide and water are your products.
How do you increase the accuracy of an experiment?
Redo the experiment multiple times. If the results are consistent, the experiment becomes more accurate.
minimize errors of the experiment by controlling and characterizing the errors beforehand
Why is it important to wash your hands after you an experiment?
As per the safety rules you must wash your hands after experimenting because when handling chemicals or bio-hazardous materials it might left some bacteria in your hands and you can be sick after that or you can get a disease. So always wash your hands with soap even though you wear gloves while experimenting.
How do you explain prior knwledge in a scientific experiment?
It helps to know the hypothesis and the possible outcome of the experiment.
It would be a trivial experiment, if you're really interested.
I'm not, so I've never done it, but I would not expect them to be the same.
How does a specimen collection help a scientist do an experiment?
Gathering together rare objects. APEX
When matter and anti matter collide does it make dark matter?
My answer will not be very helpfull. But we have no idea what so ever about what will happen in this scenario. We have still a long way to go in even figuring out what dark matter is. Dark matter is to us only the knowledge that there has to be something more out there somewhere.
~Stenpung~
since dark matter has mass and is infact matter it would react just like normal matter would, and it would have the same explosive results as matter and antimatter ...
it is also possible that they are infact the same thing in which case nothing would happen...
~c1c2c3c4c~
How does the control setup in an experiment differ from the other setups in the same experiment?
EXPERIMENTAL SET UP * involves the set up that will allow you to investigate what you are interested to know. CONTROL SET UP * involves a set up that is exactly the same as the experimental, except the factor that you hypothesis to influence the results.
What is a catchy title for a science project about the moon?
"Comets: The "Special Guest Stars" in the Celestial drama".
Will collagen dissolve in water?
Yes and no. Collagen will dissolve in water, but only at the right pH. At physiological pH (pH7.4) collagen is a stable structural protein which forms the scaffolding for skin and connective tissue in a body that is mostly water. What helps collagen stay stable in the body is also that it is crosslinked with glucosaminoglycans such as chondroitin or hyaluronic acid. Collagen can also be crosslinked in a lab with heat in the absence of water or with chemicals such as carbidiimide or glutaraldehyde. Collagen should start dissolving under pH5.
What is the main idea of an experiment?
An experiment is a set of observations performed in the context of solving a particular problem or question.
In scientific inquiry, an experiment (Latin: ex- periri, "to try out") is a method of investigating causal relationships among variables. An experiment is a cornerstone of the empirical approach to acquiring data about the world and is used in both natural sciences and social sciences. An experiment can be used to help solve practical problems and to support or negate theoretical assumptions. To test the hypothesis stated prior to designing and carrying out the experiment. That is, you run experiments to test out a question you have. someone else's Example:
Hypothesis - Eating cake 3 meals a day will make you gain weight.
Experiment - Weigh yourself. Eat cake 3 meals a day for X amount of days. Weigh yourself afterwards.
Conclusion - Eating cake 3 meals a day will/will not make you gain weight.
What did you think would happen in the experiment?
WikiAnswers cannot read your mind to know what you thought. This is an opinion question that your teacher just wanted to see if you were paying attention. Evidently not.
Describe the four types of fossils?
Usually the remains of dead plants and animals quickly decay and are
destroyed. When the remains are protected from scavengers and
micro-organisms, however, they can become fossilized.
If a carcass is in water and sinks to the bottom, the body can be
buried by sediment. Soft parts, such as skin, muscle, or organs decay
rapidly and are rarely found as fossils. The hard parts (bones, shells,
or teeth) may be altered to become fossilized remains. When water
penetrates the bones of a dead animal, the water dissolves the calcium
carbonate in the bones. A deposit of another very hard mineral, silica
(quartz) remains, turning the bones into a petrified (rock-like) substance.
When an organism is buried under many layers of sediment,
pressure and heat may build up, leaving a thin film of carbon residue
on rock surfaces. The residue forms an outline of the organism. The
outline is called a carbonaceous film.
What is the part of the experiment that is the standard for comparison is the?
The part of an experiment that's the standard for comparison is called the Control
What types of bread will mold grow fastest on?
Mold needs a few factors to grow
1) high humidity
2) warm temperatures
3) food source
If you were to keep humidity and temperature constant, I would say that wheat bread would grow mold faster. Rye bread is often more acidic because Lactobacillus maybe used in the dough raising process. The anaerobic respiration of lactobacillus can mean higher acidity of the dough and therefore a lower pH value.
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Mold will grow quicker on white bread than it will grow on rye or plain brown wheat bread.
It also depends on the formulation of the bread, whether or not it contains artificial or natural preservatives, the quality of the ingredients - and their original state of freshness - and then, of course, the conditions under which the bread was produced and the conditions in which it is being stored.
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It depends on what moldy environment you'd prefer to keep your bread in my friends...
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Put five to 10 drops of water on the piece of bread and store in a warm, dark place.
After 5 to 10 days, you should notice some fuzzy white, black, orange or green spots on the bread. Once visible, the mold will grow noticeably each day.
The coli are rod shaped and often care called coliforms. As a group, they are indicators of sanitary conditions in food and water. E. coli are a member of this group. It can be found in the colon of warm blooded animals. Finding them is an indication that other disease causing microbes may be present (a red flag).
Oxygen is actually considered to be the most common element in Earth's crust (by mass), and is believed to be one of the top 3 most common elements in the galaxy.
While we think of Oxygen being in the air we breathe. However, it binds to many other elements, and thus is very common.
Oxygen combines with Hydrogen to form Water.
Oxygen combines with Silicon to form Silicon Dioxide, very common in stones, as well as all the glass we have.
Aluminum, Iron, etc, are all found in oxides.
While there is very little atmospheric Oxygen on the Moon, it is also a key element in all of the moon rocks. So, if the moon is ever colonized, it is likely that the required oxygen could be recovered from moon rocks.
Does water freeze faster than coffee?
Yes because salt is a substance that has high salinity and high temperature. Which means, salt will not freeze, unless you give it days or a week. Soda can freeze slower than salt, but not faster than water. Water probably is the fastest thing that freezes.
