1) Find the dependent Variable: A study was done to find if different tire treads affect the braking distance of a car. a) Different treads b) Braking Distance c) Type of car 2) Find the indpendent Variable: The time it takes to run a mile depends on the person’s running speed. a) Time running b) Same person running c) Running speed 3) Find the constant: The height of bean plants depends on the amount of water they receive. a) Height of bean plants b) amount of water c) soil they are planted in 4) Find the independent variable: An investigation found that more bushels of potatoes were produced when the soil was fertilized more. a) amount of potatoes in a bushel b) amount of fertilizer used c) number of bushels of potatoes produced 5) Find the dependent variable: The higher the temperature of the air in the oven, the faster a cake will bake. a) air temp b) time to cook c) flavor of cake batter 6) Determine the constant: Lemon trees receiving the most water produced the most lemons. a) number of lemons produced b) amount of water given c) type of trees 7) Find the dependent variable: Students measured the temperature of the water at different depths in Lake Skywalker and found that the temperature varied. a) varied temperature of water b) depths of measurements c) names of the students 8) Determine the dependent variable: The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.  a) the amounts of lead in the gas b) the types of cars c) the amount of pollutions produced 9) Determine the independent variable: Four groups of rats are first massed and then fed identical diets except for the amount of vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats’ masses are measured again to see if there has been a decrease. a) mass of rats b) type of diet c) vitamin A

Independent Variables and Dependent Variables

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