Name:

# Marble and Ramp Video Lab

## Goals and Background

1. Students should understand the difference between science and engineering:
1. Science poses ______________________ about the natural world and ______________________ in the form of evidence-based ______________________ .
1. Our question or inquiry: How does the marble ______________ affect the ______________ in the marble / ramp system?
2. Engineering identifies ______________________ and proposes ______________________ .
1. Our science question leads to practical engineering problems:
1. Measuring and changing ______________
2. Measuring ______________

## Communication

Our Inquiry and results will be communicated using the standard OHSD lab report format with an Engineering section added.

Section ------ Reminders ------
manipulated variable = mv     responding variable = rv
Student Check Teacher Check
Title Did you write a descriptive title?
Question How does the marble GPE affect the KE in the marble / ramp ?
Hypothesis
What do you expect the answer is for the question? "If (mv), then (rv)
because (reason)."

Materials · V-shaped plastic channel         · marbles         ·books         · masking tape       · ______
Procedure
Do you have a step that tells a person what to change? (mv)
Do you have a step that tells a person what to measure (rv) after they make the change you described above?
Do you have a step that tells a person what to always keep the same?   (controlled variables)
Do you have a step that tells a person to write down the data?
Do you have a step that tells a person how many times to do these steps over? (repeated trials)
Check your procedure...does it make sense? Could anybody use this procedure to do the experiment?
Data Does your data table include what you changed (mv) and what then happened (rv) ?
Sample calculations showing how GPE and KE were found
Conclusion Did you restate your hypothesis?
So tell me, was the hypothesis or prediction correct?
When you changed your variable (mv) the least, what happened (rv)?
When you changed your variable (mv) the most, what happened (rv)?
Put it together for me, what does the data say about your hypothesis?
Measuring and changing GPE Our solution
A strength of our solution
A weakness of our solution
Measuring KE Our solution
A strength of our solution
A weakness of our solution