1. Tire Pressure Experiment Independent Variable (IV): air pressure Control: car with recommended air pressure Constants: gas in car, speed, roads Dependent variable (DV) : miles per gallon

2. Music experiment Independent Variable---music Dependent Variable----blood pressure, pulse Constants---group formation, time of day Control----people in silence

3. Bread Experiment Independent Variable (IV)----salt Dependent Variable (DV)----amount of mold Constants---bags, recipe, baking time, oven Control----w/o salt

4. Chocolate chip cookies Independent Variable (IV)---baking soda Dependent Variable (DV)----taste Constants----oven, time, ingredients, size Control----cookies with recommended baking soda.

5. Paper helicopters Independent Variable (IV)--paper Dependent Variable (DV)---how long it flies Constants—hallway, size, weight, force

6. Water Cups around the house Independent Variable (IV)---location Dependent Variable (DV)---water remaining Constants---amount of water, cups

7. Paint Experiment Independent Variable (IV)--paint Dependent Variable (DV)----dry time Constants----amount of paint, wood, painter