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Dino Hypothesis 1

Name___________________________

Developing a Hypothesis

Purpose: To practice making hypotheses using If...,Then... statements. Background Information: Sometimes scientists use a HYPOTHESIS to help guide an experimental investigation. A hypothesis is a special kind of PREDICTION. It is an educated guess about the relationship between the independent and dependent variable. A hypothesis is testable; an experimental investigation can be done based on the hypothesis. One way to write a hypothesis is to use an "If..., Then...." statement. An If, Then statement shows cause and effect. In other words, what effect does the independent variable have on the dependent variable? Or what does the independent variable cause the dependent variable to do? Write an If, ...Then... hypothesis using this format: IF the independent variable changes, THEN the dependent variable will change. Of course, in a real hypothesis, you will state the actual variables and describe the type of changes you expect. Given this question: What does the temperature of water have to do with how long it takes the capsule to dissolve?

1. Re-write the question using the word effect: _________________________________________________________ _________________________________________________________ 2. Re-write the question using the word affect: _________________________________________________________ _________________________________________________________

M. Poarch ­ 2005 http://science-class.net

Dino Hypothesis 2

Write a hypothesis for the research question using an If, Then statement. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________

M. Poarch ­ 2005 http://science-class.net

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