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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
Yes if something is dissolved in the water then it is no longer pure water and the freezing point will change
What were some of the positive effects of the Scientific Revolution?
well some effects of the scientific revolution was a unicorn c;
Why meat remains brown when iodine is present?
Meat does not contain starch. Without starch there is nothing to cause the brown iodine to change color.
Are hummingbirds and bees producers in the tropical rain forest?
no, plants are producers and the sun
How Does the color of a material affect it's absorportion of heat?
A darker color, such as purple and black, will absord more heat than a lighter material, such a white and yellow.
What are some visible traits inherited by humans?
Characteristics passed down by parents to the offspring.
How do you solve the perfect taters mystery?
An experiment must be conducted, under adult supervision.
What is the relationship between experimental and theoretical probability?
expiremental: finding the answer by observing it lots of times..
theoretical: its like a theory,, you just guess!!~ <3
How do you write a science fair outline?
You set this up by putting your results in the top right corner, conclusion on the bottom right corner, title in the middle at the top, materials you used under that, model or photo on bottom of the middle, purpose at the top left corner, hypothesis right under that, and the last one on the bottom left is back round research. So it looks like this:
Left side Middle Right side
Purpose Title Results
Hypothesis Photos or model ^
Conclusion
Back round research Photos or model
In a scientific experiment the responding variable can also be called the?
the dependent variable
hhehehe(:
Why do scientists need to perform experiments to learn about the earliest stages of the universe?
Because space is so big we can't see all of it our selfs so we do test on what we know about it and we pice that with what we know to see if it correct or not
What happens when plants get no water?
the plant withers and dies after its used the water inside of it.
Why are biofuels better for the environment?
Biofuels are made from plant and organic material that is usually, at most, 6 months old, often younger. So biofuels are usually regarded as carbon neutral, that is, the plants absorbed carbon dioxide six months ago, and now, turned into biofuel and burnt, they release that same carbon dioxide into the atmosphere.
Fossil fuels like coal, oil, peat and natural gas release carbon dioxide into the atmosphere that has been trapped for millions of years. So fossil fuels are seriously adding to the greenhouse gases in the atmosphere.
If the biofuel is made from plant and wood wastes, and other organic material like animal manure that is good for the environment. If the biofuel is made from crops specially grown for the purpose, that is liable to mean less land is available to grow crops for food and so food prices go up which can cause hardship.
How do you compare the shape of the pupil in the dissected eye with your pupil?
All you need to do is look at it.
How come the hot water didnt freeze faster than the cold water?
Sounds as if you were trying to repeat the MpembaEffect. Apparently it was even known to Aristotle that to get a liquid to freeze faster, "warm it in the sun first".
Enter Mpemba (circa 1950s?) who had known that warm liquids freeze faster than cool ones when placed in the frig.
Much experiments and $$ later, the explanation is yet to arrive (maybe a Nobel?), but the optimum temps for the experiment are 35oC for the hot liquid and 5oC for the cold one.
Why the focal length of concave mirror changes in water?
I don't think so. The focal length would remain the same. It mainly depends on the radius of curvature of the mirror.
Upon what base must a conclusion be drawn?
A conscientious base of careful observation, recording and validating of data is what a conclusion needs to be drawn on. Otherwise, there may be a misinterpretation or misunderstanding of some part or the entirety of whatever is being studied.
Can you use a hair dryer to help dry polyurethane?
You should probably try it on a small piece first and see how well it works; it seems possible that using a hair dryer could cloud or even discolor the finish, which may or may not matter in your particular application.
Does a plant grow bigger if watered by water or milk?
Milk is for mammal consumption. Other than adding calcium to the soil, it doesnt help the plant. Plants naturally seek water in the soil. It could possibly survive in the milk but would like the water better.
Why is it easy to fall over on an icy day?
it is easy to fall on a icy day because the ground is very slippy and our shoes dont always have good enouhg grips for the ice.
What factors affect pressure and density in the atmosphere and oceans?
Pressure in the atmosphere is affected by area and force.Density on the other hand is affected by the mass and volume of water in the ocean.
Which color fabric will melt an ice cube the fastest?
i actually don't think it matters. though if i had to choose, i would probably say black because it absorbs more heat, though i have never really tried.
