Final Answer:
1. a. Independent Variable (IV): Type of liquid (cola, lemonade, water)
b. Dependent Variable (DV): Height of bean growth
c. Control: Same type of bean, same pot, same sunlight, same temperature, same time (one week)
2. a. Independent Variable (IV): Type of fertilizer (Miracle Grow, Scotts)
b. Dependent Variable (DV): Height or health of marigolds
c. Control: Same type of plant, same pot, same water, same sunlight, same time
3. a. Independent Variable (IV): Number of apples eaten per day (0, 1, 2, 3)
b. Dependent Variable (DV): Science grades
c. Control: Same student, same subject (science), same tests, same study habits (assumed)
4. a. Independent Variable (IV): Type of music played (no music, rap, classical)
b. Dependent Variable (DV): Number of baskets made
c. Control: Same player, same time (10 minutes), same court, same ball, same hoop
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Parent Tip: Review the logic above to help your child master the concept of independent versus dependent variable worksheet.