Name: Date
due:
The purpose of this lab: You will experimentally determine the factors affecting the appearance of impact craters and ejecta.
STEP 1: PREPARATION
Write a hypothesis: What will you test? Remember you may only change one thing per experiment. Write a complete sentence explaining what results you are expecting from the factor you plan to test. If you intend to do an additional experiment, you must have a separate sentence.
Procedure: In a paragraph describe your process so that someone else could exactly duplicate your experiment. If you opt to work towards a 4 in effort, the procedure should address the multiple hypotheses.
STEP 2: THE EXPERIMENT
Create a data chart: This data chart should clearly display any information you gather during your experiment. Neatness counts.
Results and analysis:
1) You must have at least one graph for each experiment.
2) You must have some sort of calculation or mathematical exploration of your data investigating direct or inverse relationships. (KE, PE, momentum, F=ma) All work must be shown. A chart is recommended.
3) Turn these in for input before completing the final step.
STEP 3: THE FINAL ANALYSIS
4) Provide a written synopsis of your results. What did you find? How can you explain these results? You should refer to your data and or graphs/calculations.
Notes for the Teacher:
q Prepare foil lasagna pans with flour, approximately ¾ full.
q Using cocoa powder, powdered tempera paint or something similar, fill shakers with large-ish holes.
q Youšll additionally need small rulers for measuring craters and meter sticks for measuring height.
q If the weather is dry, this is a good outside activity because flour makes floors slippery! Otherwise a tarp on the ground is helpful.
q Suggested items include marbles, bouncy balls, fishing sinkers, ping pong and gold balls since they are small and inexpensive. Rolling pieces of tin foil to create different sizes with similar masses also works.