A student wants to investigate the effect of sunlight on the rate of photosynthesis in pondweed. She places the pondweed at different distances from a lamp and counts the number of bubbles produced per minute.

Write down the hypothesis for this experiment?

Students want to know if the type of soil affects how fast a plant grows. They plant the same type of seed in sandy soil, clay soil, and loamy soil. All pots are given the same amount of water, kept in the same location, and measured for height weekly over a month.

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