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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
Are air particles of sound far apart or close together?
high sound particles are near, and low sound as far apart particles.
How do you classify the difference between a physical and chemical change?
Physical changes occur when objects or substances undergo a change that does not change their chemical composition. A physical change involves a change in physical properties. Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.
Does the viscosity of a liquid affect how much of the liquid is displaced?
No, it is actually density that affects how much of a liquid is displaced when something is put in it. It is a common misconception that viscosity and density are the same thing, but the fact is, substances of the same density can have entirely different viscosities.
Did anyone do a science fair project on wrestling?
Yeah I did one on if kneepads create quicker shots
In theory, an infinite number of images is formed.
Now, you would notice that the images keep becoming smaller and smaller. At a certain image, due to the inaccurate position of the mirrors(it is impossible to place them exactly parallel to each other in practice), the small image will be distorted and not detected by the eye.
Another factor is that real mirrors are not actually perfect reflectors... With each reflection, a bit of light is lost, so the reflected object becomes dimmer and dimmer until it can no longer be seen.
Do all grade 6 students make a space project with planets on sticks?
no some go even farther and they get extra credit
Where can you buy purple 7 percent tincture of iodine?
I am doing a science project that calls for purple iodine. I have looked everywhere and I can not find it. Pleae help. Where can I purchase purple iodine?
What does feedstock for chemicals mean?
Feed stock is what livestock such as cows, goats, sheep, and horses are fed. There are chemicals in the feed which help give them the nutrients they need. They are usually found at feed stores.
If you have multiple uncontrolled variables, you can't tell which one (or which combination) is causing the change. For example, if you put four different random chemicals in milk and it exploded, you wouldn't know which of the four chemicals makes milk explode, or if it takes a combination of those four chemicals to cause the explosion.
Why did Wilhelm roentgen repeat his experiment before describing his results to others?
He repeated his experiment because he wanted to make sure that it worked perfectly before describing the results to others.
What happened when impurity is added in phenol water system?
the critical solution temperature for phenol water system increases
How do you separate salt and sand without filter paper?
In order to separate sand and salt without filter paper you need to place mixture in container with an excess of water. You use an excess of the solvent so that you decant the salt water with a pipette or what ever you are using. Remember you will want to stir the mixture so salt goes into solution. You can repeat adding water to your liking and removing more salt water and then dry the sand.
Is nigrosine repelled by negative charges in bacteria?
Yes. It is a negative stain and so therefore repels and is repelled by other negative charges.
What is the controlled variable in pendulum experiment?
It depends on the experiment... but the possible constants for such an experiment could be...
- The mass of the weight at the end of the string (which is independent from the SHM)
- The length of the string
- The height of the weight when released (not necessarily)
Then given that you don't need to put on would be the gravitational force of acceleration 9.81 ms-2, etc.
What happens when carbonic acid is mixed with feldspar?
Feldspar, a major constituent of most igneous rocks, reacts with carbonic acid to produce residual clay minerals plus dissolved ions of metals (potassium, sodium or calcium, depending on the type of feldspar). Here, for example, is the reaction by which potassium feldspar is converted to kaolinite, a clay mineral: 4KAlSi3O8 + 4H2CO3 + 2H2O → Al4Si4O10(OH)8 + 4K+ + 4HCO3- + 8SiO2 feldspar + carbonic acid + water → kaolinite + dissolved potassium and bicarbonate ions + dissolved silica Similar reactions affect sodium feldspar and calcium feldspar.
The Kakinada Experiment• Conducted by McClelland in America, Mexico and Mumbai • Under this experiment, young adults were selected and put through a three month training programme • The training aimed at inducing the achievement motivation • The course contents were - Trainees were asked to control their thinking and talk to themselves, positively - They imagined themselves in need of challenges and success for which they had to set planned and achievable goals - They strived to get concrete and frequent feedback - They tried to imitate their role models/those who performed well
Entrepreneurship Management
• Conclusions of the experiment: - Traditional beliefs do not inhibit an entrepreneur - Suitable training can provide necessary motivation to an entrepreneur - The achievement motivation had a positive impact on the performance of the participants • It was the Kakinada experiment that made people realise the importance of EDP (Entrepreneurial Development Programme) to induce motivation and competence in young, prospective entrepreneurs
By MSM:)
How would the density of a metal be affected if it were wet?
how would density of a metal be affected if it were wet
How are the colors of the lights changed at a laser light show at the concert?
They are changed by a lens in the light machine, They have a white bulb and change the slides to pass through the tiny holes to make it seem as if it was a laser.
What is an abiotic factor that can be found in a rain forest ecosystem?
The correct answer is Oxygen, otherwise air. (APEX)
