The following statements are found in a student’s notebook. Identify each of the following as an observation (O), a hypothesis (H), or an experiment (E):
a. “Today I placed two tomato seedlings in the garden and two more in a closet. I will give all the plants the same amount of water and fertilizer.”
b. “After 50 days, the tomato plants in the garden are 3 feet high with green leaves. The plants in the closet are 8 inches tall and yellow.”
c. “Tomato plants need sunlight to grow.”
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