Your Problem Statement Will adding diet soda cause the raisins to dance less? Criteria for a 4 ~ Readable ~ Testable ~ The 6 essential parts of a hypothesis are present and in the correct places.
Sample Problem Statements Does the amount of soda increase or decrease the overall movement of the raisins? How many bubbles will it take to keep the raisin floating for a minute? Will a change in the type of pop effect the overall movement of the raisins? How much salt would we have to add to water to float an egg? What temperature of water, will the float an egg? Does the amount of cooking of the egg affect the ability for it to float?