PLS HELP a student is investigating seed growth in different light conditions the student places one container with seeds in the sunlight and another container in the dark the student leaves the container there for three days which experiment setup allows the student to perform a fair test

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Which element below could be and isotope of this atom

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges