2. Things That Can Change

3. Definition Something that can change is called a variable.

4. Can you find the variables?

5. Part A: Statement #1 The higher the temperature of water, the faster an egg will cook.

6. Statement #2 The time it takes to run a kilometer depends on the amount of exercise a person gets.

7. The Manipulated or Independent Variable A variable that is deliberately changed is called the independent variable.

8. Part B: Statement #5 The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead. Amount of Lead

9. Statement #6 Lemon trees receiving the most water produce the largest lemons. Amount of Water

10. The Responding or Dependent Variable Sometimes a variable changes as a result of an idependent variable. It is called the dependent variable.

11. Part C: Statement #8 More bushels of potatoes will be produced if the soil is fertilized more. Independent Dependent

12. You must be the change you wish to see in the world. Mahatma GandhiMahatma Gandhi (1869-1948) Preeminent leader of Indian nationalism.