Science Experiments Leaves
June 26th, 2009
Question: Help With Science HW?
A student did an experiment with five plants grown under differenct conditions. The data is recorded on the table below:
(10ml) (5mm growth) (soil dry, wilted)
(20ml) (5mm growth) (soil dry, no growth)
(30ml) (5mm growth) (5mm additional growth)
(40ml) (5mm growth) (5mm additional growth)
(50ml) (5mm growth) (yellow leaves, no growth)
(amount of water per day, first coloum) (observations after 7days, second coloum) (observations after 14 days, third coloum)
1. What is the manipulated variable in this experiment?
2. What is the responding variable in this experiment?
3. What would three controlled vaiables you would use in this experiment?
Answer: 1. amount of water
2. growth after 14 days
3. (1) pure water
(2) amount of sunlight
(3) heat
!!Acids And Bases!!
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