1. a) independent: type of fertilizer; dependent: height of plant; controlled: amount of water, sunlight, soil type
2. a) independent: temperature; dependent: rate of enzyme activity; controlled: pH, substrate concentration, enzyme concentration
3. a) independent: time of day; dependent: length of shadow; controlled: location, height of object casting shadow
4. a) independent: amount of light; dependent: rate of photosynthesis; controlled: CO2 concentration, temperature, water availability
5. a) independent: type of surface; dependent: distance traveled; controlled: initial speed, mass of object, angle of incline
6. a) independent: concentration of salt; dependent: germination rate; controlled: type of seed, water amount, temperature
7. a) independent: type of insulation; dependent: temperature change; controlled: initial temperature, volume of container, ambient temperature
8. a) independent: amount of exercise; dependent: heart rate; controlled: age, fitness level, time of day
9. a) independent: brand of battery; dependent: duration of power; controlled: device used, brightness setting, room temperature
10. a) independent: type of soil; dependent: plant growth; controlled: amount of water, sunlight, seed type
Parent Tip: Review the logic above to help your child master the concept of independent dependent variable worksheet.
