Question

a scientist is testing how often a plant should be watered. one group is watered every day, another group every three days, and another group once a week. whats the independent variable? what is the dependent variable? what are two constants? why is it important to use the same type of plant for this experiment?

Explanation:

• Independent variable is what's changed: watering frequency.
• Dependent variable is affected by it: plant health/growth.
• Constants could be plant type, pot size.
• Same - type plants ensure only watering frequency affects results.

Answer:

• Independent variable: Watering frequency
• Dependent variable: Plant health or growth
• Two constants: Plant type, pot size
• Reason: To isolate the effect of watering frequency