Science Fair Project : Scientific Method - Hypothesis You'll be expected to present data in the form of tables and graphs. Let the bowl sit overnight in a place away from direct sunlight. endstream endobj 296 0 obj<. 9. If you shake up different kinds or brands of soft drinks (e.g., carbonated), will they all spew the same amount? music? So, love is not measurable in a scientific sense; therefore, it would be a poor variable to use in an experiment. However, vinegar, which is actually an acid, can dissolve the candy. Study the simple transfer of energy with the help of this cool physics science project exploring static energy. Variables either control, respond to, or are independent of, a research initiative. ", "The many variables above can each change how fast a plant grows, so to ensure a fair test of the fertilizer, each of them must be kept the same for every pot. You will test different surfaces, such as sand paper, floor tile or bare wood, on top of the ramp and measure the time and distance that a toy car travels using at least three trials each. The fertilizer added to trays C and D is the independent variable. Can you graft a tomato plant onto a potato plant? How much can you dilute a pesticide while retaining its effectiveness? Which soft drink sprays the most liquid after it is shaken? Compare how much sugar dissolves in containers of one cup of water, each at different temperatures. Independent Variable: Time (how long each battery operates in a given device), Independent variable: Type of current drain device (as quantified by low, medium, and high), Dependent variable: Voltage (same as experiment #1), Controlled variables: Same as outlined in the table for experiment #1. 0000007306 00000 n You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. Teaching About Variables in Science - The Owl Teacher

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