By definition the control in a science experiment is a sample that remains the same throughout the experiment. The control must remain the same or equal at all times in order to receive accurate results. You can have as many controls as necessary to achieve results.
Graphs are often an excellent way to display your results. In fact, most good science fair projects have at least one graph. For any type of graph: Generally, you should place your independent variable on the x-axis of your graph and the dependent variable on the y-axis.
By plotting these points and connecting them with a smooth curve, you obtain the graph shown in Figure 3.14. Figure 3.14. 14 Example 5(b) â Solution Because g (x) = log 2 x x is the inverse function of f (x) = 2, the graph of g is obtained by plotting the points (f (x), x) and connecting them with a smooth curve. The graph of g is a reflection of the graph of f in the line y = x, as shown in Figure 3.14. contâd Figure 3.14.