Can someone me with this 2 other questions

4. IV: Distance ball goes, DV: Type of bat, C: Type of ball, and the length of the experiment (6 weeks).
Hypothesis: If the player uses the aluminum bat, then it will have a greater distance then the balls hit with the wooden bat.

5. IV: Light produced, DV: Light Bulb wattage. C: The lamp
Hypothesis: If the bulb has more energy yen it will produce more light.

IV is what you don't control/the outcome of the experiment, and DV is the part of the experiment that you have control over. The constant remains the same throughout the experiment.

The state or quality of being humid.a quantity representing the amount of water vapor in the atmosphere or a gas.