1. oneone IN-4b Objective: To construct a catapult or series of catapults in order to test an experimental variable. Core Question: How is the experimental variable accounted for? Drill: 1. Think about your experimental variable. 2. In your Log Book create a list of variations on your variable.

2. oneone IN-4b Once your catapult has been created, what do you need to do next? Create your Materials List and Experimental Procedures

3. oneone IN-4b Materials Tips 1.Your catapult is one of your materials. 2.Include amounts with each of you items. 3.Include only those materials necessary for the conducting of the experiment. Do not list a data chart as one of the materials. 4.The materials will be referenced in the procedures.

4. oneone IN-4b Problem Question : How does the color of the base structure of a catapult affect the distance a marble is launched? LAUNCH PROCEDURES 1.Place the catapult on the floor in an open area. 2.Pull the spoon over the fulcrum bar so that 13 cm of the spoon is in front of the bar. The cup part of the spoon should be upward and towards the back of the carton. 3.Pull the spoon downward so that it is at a 5° angle below the horizontal. 4.Place a marshmallow in the cup part of the spoon.

5. oneone IN-4b LAUNCH PROCEDURES 5.Release the spoon so that the marshmallow is launched. 6.Mark the landing point. 7.Measure the distance from the catapult to the landing point. Record this distance in the data chart. 8.Repeat steps 2-7, 4 more times. 9.Find the average of the 5 trials. Record the average in the data chart. 10.Paint the carton another color. 11.Repeat steps 2-10, 4 more times. (Skip step 11 the last time.)

6. oneone IN-4b The Effect of Catapult Base Color on Launch Distance DISTANCE TRAVELLED (cm) Event # Base Color Trial #1Trial #2Trial #3Trial #4Trial #5Average 1Brown 2Red 3Green 4Aqua 5Tangerine

7. oneone IN-4b Homework 1.Create launch procedures. 2.Create data chart. 3.Make sure that everything is ready for testing.