Now that you've completed your Research, you can made a good educated guess. An educated guess is called a hypothesis.
The Hypothesis Should Be Written As an "IF...THEN" Statement.
Here are some examples of Science Fair Project Questions. Following each question, there is a hypothesis stated as an "IF...THEN" sentence.
(1.) Question: Which seeds germinate quicker, carrot seeds or tomato seeds?
Hypothesis: If I plant carrot seeds and tomato seeds, then carrot seeds will germinate quicker.
(2.) Question: Which bread molds quickest: sourdough bread, whole wheat bread, or enriched white bread.
Hypothesis: If I place sourdough bread, whole wheat bread, and enriched white bread in a moist, plastic bag, then whole wheat bread will mold the quickest.
(3.) Question: Which type of dog food does Pebbles like best: dry food or moist food?
Hypothesis: If I give Pebbles a choice of dry food or moist food, then he will eat the moist food first.
Now, write an "IF...THEN" hypothesis statement for YOUR science fair project. Do this on your SCIENCE FAIR PROJECT WORD DOCUMENT.
Once you've written your hypothesis as an "If...then" statement, you are ready to test your hypothesis. It's time for your experiment!