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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
When does norstradamous say the world will go through lots of catastrophes?
He says on December 21, 2012. I don't believe it though. He doesn't really know; only God does.
How can you explain experiment science to kids?
all you have to know is identify the problem, gather information,state a hypothesis,state a hypothesis, organize data, analyze the data,and write a conclusion if it supports the hypothesis or not
Erm, I think you mean test the hypothesis.
What type of pollutants can diesel emit?
Diesel exhaust may contain:
- D.P.M. That's is diesel particulate matter. Microscopic particles that stick inside your lungs.
- Unburned diesel
- Sulfate particulates
- Aldehydes and ketones
- Lighter hydrocarbons from cracked diesel
- Carbon dioxide
- Nitrogen oxides
How many experiments are necessary to invalidate a scientific hypothesis?
Only one, providing it is repeatable.
One! Replication of the experiment result confirms the result in the scientific community.
What does series mean in science terms?
It depends of which science we are talking about. In mathematics, a series is an infinite sum of expressions of more or less similar form, for example: 1+x+x^2+x^3+...
or 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+...
What is an independent experiment?
In general, it is an experiment that is run by different experimenters, using different-but-similar equipment, in a different locale, and perhaps a different-but-similar testing protocol.
What is the testing range of a science experiment?
i believe it is how long an experiment is going to take.
for example, the testing range of an experiment with plants may take around a few weeks to months.
What are the external features of arthropods?
Arthropods are segmented animals with jointed legs and an exoskeleton.
What is the difference between rubidium and seslium?
If you mean "What is the difference between rubidium and cesium?" then Rubidium and cesium are two different elements.
They have similar properties but cesium is denser and has a higher atomic mass.
Cesium also reacts more vigorously with water and air.
Biotic parts of an ecosystem interact with?
Biotic parts of an ecosystem interact with other living organisms within the ecosystem. These interactions can include competition for resources, predation, symbiosis, and cooperation. Biotic factors play a significant role in shaping the structure and function of ecosystems.
Breifly describe how applying the brakes to stop a bicycle is an example of force?
The brakes apply force to the wheel, causing friction which stops it.
How would you do a science project with brown bananas and vitanim C?
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Source: John Wiley & Sons, Inc.
Author: Janice VanCleave
Topics Middle School, Chemistry
brown banana So You Want to Do a Project about Oxidation!Let's ExplorePurposeTo determine if vitamin C can inhibit oxidation. Materials- banana
- dinner knife
- 2 saucers
- 2 sheets of white copy paper
- pen
- 3 vitamin C tablets (IOO-mg work well)
- cutting board
- rolling pin
- timer
- Peel the banana, and then slice it into eight pleces.
- Place four slices of banana in each saucer.
- Set each saucer on a sheet of paper. Label one of the papers ''Without Vitamin C." Label the other paper ''With Vitamin C."
- Place the vitamin C tablets on the cutting board and crush them with the rolling pin.
- Use the dinner knife to scoop up the vitamin C powder and sprinkle the powder over the cut surface of the banana slices in the With Vitamin C saucer.
- Every 15 minutes for 2 hours or more, observe the color of each sample's surface. Record your observation in an Oxidation Data table like the one shown.
- Repeat the investigation, adding a third test set of banana slices. Label the paper under the saucer ''With Lemon Juice."
- Use lemon juice squeezed from a fresh lemon.
- Photographs of the banana slices at the start, periodically during the test, and at the end of the test can be displayed to represent the progression of any changes. The photographs also help to compare the effectiveness of the antioxidants.
Kenda, Margaret, and Phyllis S. Williams. Science Wizardry for Kids. Hauppauge, N.Y.: Barron's, 1992.
Strauss, Michael. Where Puddles Go. Portsmouth, N.H.: Heinemann, 1995.
VanCleave, Janice.]anice VanCleave's Chemistry for Every Kid. New York: Wiley, 1989.
Wollard, Kathy. How Come? New York: Workman, 1993.
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What is the difference between results and conclusion?
Results is the information that came out of an expirement or a test. A conclusion would be what you infered from the results, like a result of a test is an A+, your conclusion would be, that person is smart.
In a scientific experiment what is the definition of a variable?
Pretty much as it is in math, something that is undefined, but in Science it needs to be defined or the experiment cant continue. Your variables are basically what you measure, what you change and your control, both positive and negative (one with a 100% percent positive result and another with a 100% negative result)
In a controlled experiment how do the number of trials and sample sizes effect the results?
The number of trials and sample sizes generally increase the accuracy of the results because you can take the average or most common results in the experiment
What type of current creates cooler climates in coastal areas?
Ocean currents that originate from high latitudes and flow towards the equator create cooler climates in coastal areas. These currents bring cold water from polar regions, which in turn cools the surrounding air and moderates temperatures along the coast. An example of this is the California Current along the west coast of the United States.
Why do fatal genes have to be recessive?
Because if they are dominant, then even one copy present in the organism would mean that the organism will be killed by the generic error (because they are fatal).
Thus to be passed on they have to be recessive - in other words if an individual has a good copy and a bad copy (genes are paired - one from the mother and one from the father) the good copy must be dominant for the individual to survive.
If you are magnetising a needle what direction you must always stroke?
The idea is to line up the electrical fields of the atoms, and to do that you have to stroke in one direction or the other. However, whether you stroke left to right or right to left doesn't matter.
Does the processing of food produce gas?
If you mean when an organisim digests foof then yes .but food proceess in a factory if you mean that then i dont know.
