Test Your Hypothesis by Doing an Experiment Analyze Your Data and Draw a Conclusion Communicate Your Results Following the scientific methodwe come up with a question that we want to answer, we do some initial research, and then before we set out to answer the question by performing an experiment and observing what happens, we first clearly identify what we "think" will happen. We make an "educated guess.
What is a hypothesis?
A hypothesis is sometimes described as an educated guess. That's not the same thing as a guess and not really a good description of a hypothesis either.
Let's try working through an example. If you put an ice cube on a plate and place it on the table, what will happen? A very young child might guess that it will still be there in a couple of hours. Most people would agree with the hypothesis that: An ice cube will melt in less than 30 minutes.
You could put sit and watch the ice cube melt and think you've proved a hypothesis. But you will have missed some important steps. For a good science fair project you need to do quite a bit of research before any experimenting. Start by finding some information about how and why water melts.
You could read a book, do a bit of Google searching, or even ask an expert. For our example, you could learn about how temperature and air pressure can change the state of water.
Don't forget that elevation above sea level changes air pressure too. Now, using all your research, try to restate that hypothesis.
An ice cube will melt in less than 30 minutes in a room at sea level with a temperature of 20C or 68F. But wait a minute.
What is the ice made from? What if the ice cube was made from salt water, or you sprinkled salt on a regular ice cube? Time for some more research.
Would adding salt make a difference? Turns out it does. Would other chemicals change the melting time? Using this new information, let's try that hypothesis again. An ice cube made with tap water will melt in less than 30 minutes in a room at sea level with a temperature of 20C or 68F. Does that seem like an educated guess?
No, it sounds like you are stating the obvious. At this point, it is obvious only because of your research. You haven't actually done the experiment. Now it's time to run the experiment to support the hypothesis. A hypothesis isn't an educated guess. It is a tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation.
Once you do the experiment and find out if it supports the hypothesis, it becomes part of scientific theory. Every parent must use their own judgment in choosing which activities are safe for their own children.
While Science Kids at Home makes every effort to provide activity ideas that are safe and fun for children it is your responsibility to choose the activities that are safe in your own home.
Science Kids at Home has checked the external web links on this page that we created. We believe these links provide interesting information that is appropriate for kids. However, the internet is a constantly changing place and these links may not work or the external web site may have changed.Water temperature and water density are directly related.
As the temperature of water increases or decreases, it will alter the density of water. This is a unique relationship in that unlike most materials, the density of pure water decreases approximately 9% when it freezes How to Write a Proper Hypothesis The Hypothesis in Science Writingaccordingly.
The Importance of Hypotheses Hypotheses are used to support scientific research and create breakthroughs in knowledge.
These brief statements are what form the What is a Hypothesis? statement about a specific research. 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. Build it up from just one statement (Step 2 is essentially your hypothesis, in scientific process terms) to a full-blown argument, complete with data and verifiable evidence.
No fake news, please. Write a hypothesis for Part II of the lab, which is about the type of material an object is made of, and its ability to absorb or release thermal energy/5(17). Write at least 1 paragraph researching either the boiling or freezing temperatures of water and why it might change if sugar, salt or sand is introduced.
Include information that relates to your hypothesis from credible resources like, website articles, scientific magazines, books, your textbook, etc.