The release button on the lighter is pressed and held until approximately 90 ml of water is displaced from the cylinder; the level of the water in the cylinder should be level with the water in the trough. The temperature of the water is taken and the lighter is reweighed. All data is recorded and then this experiment is repeated three times, using all the same material. Data and Observations: As the water is displaced from the cylinder, bubbles continuously floated to the end of the cylinder as the water level went down. See Table 1 for all the recorded results.
We then added a magnetic stir bar to help stir solutions and then turned the right knob on the hot plate to begin stirring. 3) Using a timer, we recorded the color of the solution every twenty seconds until we saw a change in color of the solution in which the solution
Part 4 involved using a 2-meter stick and dropping various objects and recording the time it took for them to fall. The last part, was to monitor our own heartbeats, we had to count 100 heartbeats and record the time. Equipment: Stop watch, Pen, Paper, meter stick, coffee filter, steel ball Discussion and Conclusion: For part 1, we tested our own reaction time using a stop watch, to see how long it would take to start and stop the stop watch. I noticed that the more trials that were done, the more efficient each of us became, the reaction times became quicker and quicker with each trial. I started out my first trial at 0.47 seconds and my last was 0.22 seconds.
Secure the spring to the stand 2. Attach masses of 0.05, 0.07, 0.10, 0.12, 0.15 kilograms to the bottom of the spring 3. Measure displacement in meters 4. Observe and record data in data tables 5. Repeat steps 1-5 for the cord and elastic band 6.
Make sure there is a recorder, a mover, a waiter, and a timer 3. Position the timer and recorder at the finish end of the course 4. Timer signals the mover to start and starts the stopwatch simultaneously 5. Once completed the mover becomes the recorder, the recorder becomes the timer, the timer gets in line to move 6. Repeat this cycle until all students have performed their movement type three times 7.
Hold the cart so that its rear axle is learned in 74, releasing the cart from notch A results in the fastes cart speed. Release the cart, and observe what happens. Measure the distance that the block moved down the track. Record the data as trial in your table. repeat steps 3-5 fourmatines and record data as trails 2-5.
Home ------------------------------------------------- How to Make a Kaleidoscope Supply List * Mirrors Three for each kaleidoscope Description and preparation * PVC pipe One for each kaleidoscope Description and preparation * PVC end cap One for each kaleidoscope Description and preparation * Adhesive-backed foam strips Three pieces for each kaleidoscope Description and preparation * Foam rope Three pieces for each kaleidoscope Description and preparation * Petri dishes One for each kaleidoscope Description and preparation * PVC cement * Transparent tape About one roll for every five kaleidoscopes * Labels With the name of your school or organization * Permanent markers In various colors