Victor made the graph shown to record the observations of an experiment to study the effect of soil additives on the growth of plants. three identical plants having a height of 25 cm were used for the experiment. the first plant had no soil additives, the second plant had wheat straw in the soil, and the third plant had polymer in the soil. all other growing conditions of the plants were kept constant. a bar graph titled plant growth is shown. the y axis, labeled height in centimeters, goes from 0 to 300. the x axis, labeled month, goes from 1 to 3. each week has 3 bars, no additive, wheat straw, and polymer. for months 1 to 3, bars for no additive have heights of 75 centimeter, 100 cm, 175 cm, bars for wheat straw have heights of 175, 185, 275, and bars for polymer have heights of 50 centimeters. which correct step in the scientific method did victor most likely do before the step described here? analyze the data publish the results construct a hypothesis make conclusions based on the graph

What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

Compare and contrast solutions and suspensions