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What else can I help you with?
What does it that a hypothesis must be testable?
It must be possible to observe whether the hypothesis is true.
The wavelength of light used to observe an object must be ... than the object itself?
The wavelength of light used to observe an object must be shorter than the size of the object itself.
What does it mean for a hypothesis to be testable?
The hypothesis must be able to be proved true or false.
Does Hypothesis Theory or something else allow you to predict what you may observe in a scientific way?
Yes. A hypothesis or theory allows you to predict what you might observe scientifically. Sometimes your theory is wrong. It must be tested. Some of mine have been way off.
How do you ensure the validity of periodic test?
To ensure that a periodic test is valid you must observe and analyze the test data. This method of test validity is called content validity.
Why must litmus paper must be moistened?
Litmus paper is a tool to identify the acidic or basic character of a substance and without water the acidic or basic nature is meaning less.
What if the blue litmus paper remains blue?
If the red litmus paper stays red, then the object tested may be either an acid or a neutral substance. The substance must be tested on blue litmus paper. if the blue paper stays blue, then it is neutral. If it turns red, then it is an acid.
Can litmus paper test for ph values?
No, it can only test whether a chemical is acidic, alkaline or neutral. If it's acidic, it will turn the red litmus paper blue. If it's alkaline, it will turn the blue litmus paper red. But beware, when doing experiment, you must use both of the litmus paper at the same time since if a chemical/solution is neutral, both of the paper won't have any changes.
How can you tell if the mixture is acidic or basic?
The simplest way is to use litmus paper. The mixture must be a liquid so that the mixture can react with the water and so dissociate into either hydronium or hydroxide ions. If it's a solid, try dissolving it in water. If you have a gas, use damp litmus paper. Red litmus paper is used to test for basic substances, and turns blue in a positive test. Blue litmus paper is used to test for acidic substances, and turns red in a positive test.
In order for clouds to form the air must be what?
The air must be moist.
How do you dress the exposed intestines or organ?
You must cover it with moist saline dressings.
Why must fern live in moist environment?
Ferns live in moist environments to transport water to cells.
How can you observe safety precaution?
two safety precautions you must observe when casting pewter
What does it that a hypothesis must be testable?
It must be possible to observe whether the hypothesis is true.
What day must christians observe sabbath?
Sunday
Why must the spermatozoa and ova combine in a moist environment?
Spermatozoa and ova must combine in a moist environment to allow the sperm to swim towards the egg and penetrate its protective barriers. The moist environment supports the movement of sperm and enhances their chances of reaching and fertilizing the egg.
What does it mean that hypothesis must be testable?
It must be possible to observe whether the hypothesis is true.
