Homework: Complete hypothesis Worksheet Aim: How to Formulate a Hypothesis Do Now: 1) Take out your homework to be collected. 2) Take out Gummy Bear Activity to be finished Homework: Complete hypothesis Worksheet

What is a Hypothesis? A hypothesis is a set of ideas that proposes a possible explanation to the problem A hypothesis must be a testable statement. Usually, a hypothesis is based on observations of the problem and research on the problem.

Steps to Formulating a Hypothesis A Strong Hypothesis “If [I do this] , then [this] will happen.” A hypothesis test the relationship between variables A variable is any factor, trait, or condition that can exist in differing amounts or types Independent variable Dependent variable Controlled variable

Examples of Strong Hypotheses “If I open the faucet [faucet opening size is the independent variable], then it will increase the flow of water [flow of water is the dependent variable].” “If I raise the temperature of a cup of water [temperature is the independent variable] then it will increase the amount of sugar that dissolves [the amount of sugar is the dependent variable].”

Examples of Null Hypotheses Hyperactivity is unrelated to eating sugar. All daisies have the same number of petals. The number of pets in a household is unrelated to the number of people living in it.

Situation 1 Answer If the wind blows in the same direction as the sanitation department then the smell released from the sewage and wastewater will be carried with the wind.