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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
How is adding a ammeter to a circuit different from adding a light bulb?
When you add a light bulb, you are adding a load, which performs a function - in this case, it converts electrical energy to light and heat energy. When you add an ammeter, most of the time you intend to measure the current in the circuit, which is the function of the ammeter. Thus the two electrical components differ in their function and does different things when added to a circuit.
What hypotheses most likely cannot be tested with a controlled experiment?
In the wild, chimpanzees form social groups composed of 10 to 20 individuals.
How many parent and daughter cells are present for a cell that divides through meiosis?
2 parent cells and 3 daughter cells
Whether a therapy cat has visited the patients would be the independent variable. A secondary independent variable, not as readily noticeable in this question, is whether the patients saw, touched, or otherwise interacted with a therapy cat or cats.
For example, 6 patients out of 100 patients visited by the cat were sleeping; those 6 patients never saw, touched, or interacted with the cats. The sample could not include those 6 patients.
Further, other variables would also be independent and need to be accounted for, including:
- the patient's mobility; the benefits would be harder to assess with a paralyzed patient
- the patient's mental state; the benefits would be harder to assess with a patient who is having active hallucinations or severe dementia
- the patient's medications; a patient given sedative medications would not be alert to see or interact with a therapy pet
- And, the exact behaviors being studied need to be pre-defined in order to properly assess the "outcomes".
What are the elements present in water?
Water is composed of may molecules each of which is made up of two hydrogen (H) atoms and one oxygen (O) atom, giving the formula H2O.
What happens to ca2 react to CO2?
There is no such molecule as Ca2. Calcium is simply Ca.
Calcium will most likely react with CO2 to produce Calcium oxide and carbon.
2Ca + CO2 --> 2CaO + C.
Why is it important for scientists to share their results?
So that they can be tested and either confirmed if correct or disconfirmed if incorrect. Also, whether correct or incorrect the results may inspire new directions of research.
Secrecy is the enemy of scientific progress.
control: the group of people who don't use any soap
What is the differences between independent and dependent variables?
One is dependent and one is independent
What are the two types of air balloons in how are there different?
y are two types the helium balloon and the hot air ballon..
Its Useful For Us We Use It For Cooking And To Keep Us Warm In The Cold Days Also We Use It For Turning On Our Machines.
