Tracy is investigating which type of liquid will help her plants grow the
tallest. She thinks the sugar and vitamins in the juice will help the plant
grow the tallest. She plants three identical plants in identical pots and sets
them in the same place in a sunny window. She gives Plant A 50 mL of
WATER: Plant B 50 mL of JUICE; and Plant C 50 mL of COLA every day. She
records the height the plants every week. What is the INDEPENDENT
variable?
O The plants growth
O The plain water
O The different liquids
O
The sunny window