1. Ms. Elliott

2. 1. Ask a Question/State the Problem 2. Collect Information/Research 3. Form a Hypothesis 4. Test the Hypothesis/List the Procedure 5. Observe/Record Data 6. Analyze and Study Data 7. Draw a Conclusion

3. 1. Ask a Question/State the Problem What’s the problem we are trying to solve?

4. 1. Ask a Question/State the Problem 2. Collect Information/Research Brainstorm what you already know about the topic, or research what other scientists have found out about the topic.

5. 1. Ask a Question/State the Problem 2. Collect Information/Research 3. Form a Hypothesis Ifthen If this is done to this, then this will be the result. What you think is going to happen in the experiment.

6. 1. Ask a Question/State the Problem 2. Collect Information/Research 3. Form a Hypothesis 4. Test the Hypothesis/List the Procedure

7. * A procedure is the step-by-step process that is followed in carrying out the experiment. * Preferably, the steps are be sequentially listed in the order they need to be followed to complete the experiment successfully. * Be very exact with each step in case someone else wants to repeat your procedure. It's like telling someone how to find your house. The least little mistake or detail left out could be critical to the outcome of the experiment.

8. * Why do you think Procedures in an experiment need to be clear instructions? * So that the experiment can be repeated exactly by other scientists later.

9. Experimental Procedure 1. Number each battery so you can tell them apart. 2. Measure each battery's voltage by using the voltmeter. 3. Put the same battery into one of the devices and turn it on. 4. Let the device run for thirty minutes before measuring its voltage again. (Record the voltage in a table every time it is measured.) 5. Repeat step 4 until the battery is at 0.9 volts or until the device stops. 6. Do steps 1–5 again, three trials for each brand of battery in each experimental group. 7. For the camera flash push the flash button every 30 seconds and measure the voltage every 5 minutes. 8. For the flashlights rotate each battery brand so each one has a turn in each flashlight. 9. For the CD player repeat the same song at the same volume throughout the tests.

10. * PROCEDURE: * Make a pendulum by tying a washer onto one end of a piece of string, then measure 48 inches of string and tie a paper clip onto the other end. * Hang the end with the paper clip from a high place. * Release the pendulum. * Use a stopwatch (there is one available in the the Lab Notebook) to time the number of swings in 30 seconds. * Record the number of swings. * Repeat several times using 1, 2, and 3 washers. * Change the length of the string to 24 inches and repeat steps 4,5 and 6. * Change the length of the string to 12 inches and repeat steps 4,5 and 6. * Change the length of the string to 6 inches and repeat steps 4,5 and 6. * Vary the starting angle (amplitude) of the swing to see if it affects the time each swing takes.

11. * You are going to work with your group to create a unique and unusal structure with the materials you have been given. * No other groups should see you work. * As you create your structure, you need to create a step-by-step procedure that provide clear directions for how to build your structure. * Write in a stepwise fashion. * Example: Step 1: Place the red square on the table. Step 2: Connect the blue rectangle to the red square by... * We want to create clear instructions so that another group can create the same structure by following our instructions.