Scientific Method BIG BOOK Front Scientific Method By

Scientific Method BIG BOOK Front Scientific Method By: first and last name Mrs. Z ___ hour Biology 9/16/16 Inside • Problem/Question • Hypothesis Page 1

numbering pages # pages through 7 inside cover page 1 page 3 page 2 page 4

Scenario Sam wished to investigate how fertilizer run-off affects the growth of algae in lakes. He set up his experiment in this way-First, he found five beakers. To each beaker, he added 900 m. L of water. In addition to each beaker, he added 5 m. L of water that contained a large amount of algae. The beakers were placed under a grow light which was timed to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts: Beaker 1 -no fertilizer Beaker 2 -2 m. L fertilizer Beaker 3 -4 m. L fertilizer Beaker 4 -5 m. L fertilizer Beaker 5 -8 m. L fertilizer

Scenario continued Each week, a sample from each of the beakers was examined under a microscope to get a count of the number of algae cells present. His final results showed that the average amount of algae found in each of the five beakers was as follows: Beaker 1 - 50 algae cells Beaker 2 - 35 algae cells Beaker 3 - 15 algae cells Beaker 4 - 10 algae cells Beaker 5 - 0 algae cells

On the following pages: formulate each part of the scientific method for Sam’s experiment: • Page 1 Problem/Question Hypothesis • Page 2 Constants • Page 3 Experiment (draw/diagram) • Page 4 Independent Variable Dependent Variable • Page 5 Control set-up Experimental set-up • Page 6 Data Table • Page 7 Graph