Physics

Physics, 29.07.2019 22:30, rileu2661

Yusef is doing an experiment to find out how the amount of sunlight affects the growth of a seedling. he has three identical pots containing grass seeds that he planted at the same time. he puts them in windows that receive different amounts of sunlight each day. every day, yusef looks at the pots and records his observations. what is the variable in yusef's experiment? a. amount of water b. type of seedling c. type of soil d. amount of sunlight

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Geography, 30.07.2019 20:30, foreignev

One student did an experiment to find if fertilizer can make plants grow taller. the steps of the experiment are listed below. take three pots of the same size. fill the pots completely with the same type of soil. plant tomato seeds in the first pot, orange seeds in the second pot, and bean seeds in the third pot. add different amounts of fertilizer to the three pots. keep the pots in the sunlight. add the same amount of water to the pots every day. measure the heights of the plants after regular intervals. the results of the experiment were not valid. which of these statements best describes a flaw in the experiment? (2 points)

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Biology, 23.09.2019 02:30, trodmanmalachip2yn26

Yusef is doing an experiment to find out how the amount of sunlight affects the growth of a seedling. he has three identical pots containing grass seeds he planted at the same time. he puts them in windows that receive different amounts of sunlight each day. every day, yusef looks at the pots and records his observations. what is the independent variable in yusef's experiment?

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Biology, 18.10.2019 16:10, owenwernert

Sara and juan conducted an experiment to test which soil would be best for growing plants. they used sand, silt, and clay. they also made a mixture of soil using equal parts of sand, silt, and clay. they planted bean seeds in four pots and placed the pots in the sunlight. they watered the pots every day and tracked the seed germination and plant growth. at the end of the experiment, the seed in the pot of silt grew fastest. which conclusion can be drawn from the experiment? a) silt is the best type of soil for growing bean seeds. b) the seeds in the pots with sand and clay did not grow. c) the amount of sunlight affects the growth of each seed. d) the amount of water given to each seed affects its growth.

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Biology, 02.11.2019 10:31, keltaylor

Astudent designs an experiment to see if detergent affects the growth of seeds. he sets up 10 seed pots. five of the seed pots will receive a small amount of detergent in the soil and will be placed in the shade. the other five seed pots will not receive detergent and will be placed in the sun. all 10 seed pots will receive the same amount of water, the same number of seeds, and the same type of seeds. he allows the seeds to grow for two months and charts their growth every two days. what is wrong with his experiment ? a) more than one variable is being tested. b) the student should have a larger amount of pots. c) there is no way of measuring the outcome d) there in no control set up.

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