9. Scientific progress is made by asking meaningful questions and conducting careful
investigations. As a basis for understanding this concept and addressing the content
in the other three strands, students should develop their own questions and perform
investigations. Students will:
a. Plan and conduct a scientific investigation to test a hypothesis.
b. Evaluate the accuracy and reproducibility of data.
c. Distinguish between variable and controlled parameters in a test.
d. Recognize the slope of the linear graph as the constant in the relationship y =kx
and apply this principle in interpreting graphs constructed from data.
e. Construct appropriate graphs from data and develop quantitative statements
about the relationships between variables.
f. Apply simple mathematic relationships to determine a missing quantity in a
mathematic expression, given the two remaining terms (including speed = distance/
time, density = mass/volume, force = pressure × area, volume = area ×
Liem, L., Tik. (1987). Invitations to Science Inquiry. Chino Hills, CA: Science Inquiry