Research is necessary to gather data that is used to formulate a hypothesis and to create the experiment.
Identify a problem. The problem is the question you are trying to answer. Without a problem, there is no reason for experimentation.
Formulate a hypothesis. The hypothesis is a statement, based on your research, that is intended to provide a solution to the problem. The hypothesis is what you are trying to prove or disprove.
Conduct your experiment to prove the hypothesis. A controlled science experiment is setup to test whether a variable has a direct causal relationship on another.
Identify your independent and dependent variables. The independent variable is commonly known as the cause, while the dependent variable is the effect. For example, in the statement A causes B, A is the independent variable and B is the dependent. A controlled scientific experiment can only measure one variable at a time. If more than one variable is manipulated, it is impossible to say for certain which caused the end result and the experiment is invalidated.
Do not alter your hypothesis midway through the experiment. The setup of a controlled scientific experiment must be constant. You can not make changes once you have begun, even if the results you are getting do not seem to support your original hypothesis. When you change your hypothesis, you change the entire experiment and you must begin again.
Do not be upset if your results are not what you expect. Some of the greatest scientific advances have come from experiments that disproved the original hypothesis.
Start over again with a new hypothesis or find new variables to manipulate. Scientific advancement is a painstakingly slow process and scientists often spend years and even an entire lifetime working on the same problem.
Explanation:
Speed = Distance traveled/ Time taken
Distance = 200m
Time = 15s
Speed = 200/15 = 13.33m/s
Complete question: Which Best describes how water moves during osmosis?
A. From passive transport regions to active transport regions
B. From active transport regions to passive transport regions
C. From high solute concentration to low solute concentration
D. From low solute concentration to high solute concentration
Answer:
The correct option is D(From low solute concentration to high solute concentration)
Explanation:
Osmosis can be defined as the thermal movement of water molecules through a selectively permeable or semi-permeable membrane.
A selectively (differentially) permeable membrane will only allow certain molecules to pass through it. Water molecules can pass through a selectively permeable membrane easily but solutes(for example, sugar molecules) cannot.
Using sugar solution to explain further, the following occurs when equal volume of a weak( low solute concentration) and a strong sugar solution( high solute concentration) are separated by a selectively permeable membrane. A diffusion gradient exists between the water molecules in the two solutions. As a result, water molecules move from the low solute concentration to high solute concentration through the membrane. This water movement continues untill there is equal concentration of sugar on the both sides of the membrane.
Sorry idk because they’re only 5 to 10 answers and i know nothing just finishing my set up
