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Print What is a Hypothesis? A hypothesis is a tentative, testable answer to a scientific question. Once a scientist has a scientific question she is interested in, the scientist reads up to find out what is already known on the topic.
Then she uses that information to form a tentative answer to her scientific question. Sometimes people refer to the tentative answer as "an educated guess. A hypothesis leads to one or more predictions that can be tested by experimenting. Predictions should include both an independent variable the factor you change in an experiment and a dependent variable the factor you observe or measure in an experiment.
A single hypothesis can lead to multiple predictions, but generally, one or two predictions is enough to tackle for a science fair project.
Examples of Hypotheses and Predictions Question Prediction How does the size of a dog affect how much food it eats? Larger animals of the same species expend more energy than smaller animals of the same type.
To get the energy their bodies need, the larger animals eat more food. If I let a pound dog and a pound dog eat as much food as they want, then the pound dog will eat more than the pound dog. Does fertilizer make a plant grow bigger? Plants need many types of nutrients to grow.
Fertilizer adds those nutrients to the soil, thus allowing plants to grow more. If I add fertilizer to the soil of some tomato seedlings, but not others, then the seedlings that got fertilizer will grow taller and have more leaves than the non-fertilized ones.
Does an electric motor turn faster if you increase the current? As more current flows through the motor's electromagnet, the strength of the magnetic field increases, thus turning the motor faster. If I increase the current supplied to an electric motor, then the RPMs revolutions per minute of the motor will increase.
Is a classroom noisier when the teacher leaves the room? Teachers have rules about when to talk in the classroom. If they leave the classroom, the students feel free to break the rules and talk more, making the room nosier.
If I measure the noise level in a classroom when a teacher is in it and when she leaves the room, then I will see that the noise level is higher when my teacher is not in my classroom. What if My Hypothesis is Wrong? What happens if, at the end of your science project, you look at the data you have collected and you realize it does not support your hypothesis?
First, do not panic! The point of a science project is not to prove your hypothesis right.Problem & Hypothesis Science Fair. Powered by Create your own unique website with customizable templates.
Get Started. Defining a research problem is the fuel that drives the scientific process, and is the foundation of any research method and experimental design, . Why a Scientific Format?
The scientific format may seem confusing for the beginning science writer due to its rigid structure which is so different from writing in the humanities. One reason for using this format is that it is a means of efficiently communicating scientific findings to the broad community of scientists in a uniform manner.
Crafting good hypotheses for your startup is hard. Most people focus on solutions rather than problems. That leads to a ton of products getting launched with zero traction.; the all-too-common “solutions looking for problems.” A good hypothesis is important because it leads to good experimental.
American International Journal of Contemporary Research Vol. 2 No. 4; April How to Write Your PhD Proposal: A Step-By-Step Guide. HOW TO WRITE A RESEARCH PROPOSAL 2 Abstract The abstract is a brief summary of the entire proposal, typically ranging from to words.