Chapter 1 Section 2
1.5 class periods
[1-2] The Scientific Method A Way of Problem Solving
The purpose of this section is to explain the scientific method. Students will learn that a hypothesis is a proposed solution to the problem and that experiments are used to test the hypothesis.
The themes that can be focused on in this section are systems about our environment.
Systems and interactions: The scientific method is a systematic procedure for exploring questions about our environment.
Energy: Most of the interactions in science involve some sort of energy exchange. The life processes of living organisms, the movement of stars and galaxies, and the changes in our environment all these involve energy.
Performance Objectives 1-2
Science Terms 1-2
Scientific method, p.11
Tape a piece of banner paper to a bare wall. The bottom of the paper should touch the floor, and the top should extend to a height of about 2-m above the floor. Provide students with metersticks and ask them to mark and label the paper beginning at the floor in 10-cm increments. Then encourage volunteers to record their height by standing next to the paper and placing a meterstick on top of their heads. Have a partner hold the stick parallel to the floor and mark the height.
The basic steps in the scientific method are:
Stating the problem.
Gathering information on the problem.
Forming a hypothesis.
Performing experiments to test the hypothesis.
Recording and analyzing data.
Stating a conclusion.
Repeating the work.
Have students study Figure 1-14, p.18 for test.