1. Create Your Own Barometer Science Lab

2. Explanation: You will be creating a barometer to examine the change in pressure. The balloon will react to changes in air pressure.

3. Step #1: Problem How will the balloon react to changes in air pressure?

4. Step #2: Hypothesis In your own words predict what you think the outcome of the experiment will be.

5. Step #3: Materials Glass Jar Balloon Scissors A straw A piece of construction paper A rubber band Scotch Tape

6. Step #4: Procedures 1.Cut the blowing part off the balloon. 2.Tightly cover the jar with the balloon using a rubber band. 3.Place the straw horizontally or sideways on the plastic wrap so that two-thirds of the straw is on the can. 4.Tape the straw to the middle of the plastic wrap. 5.Get a piece of construction paper and create your reader. (I’ll show a video to help with this.) 6.Record the location of the straw on the index card with a pencil. 7.After 15 minutes, record the new location of the straw on the index card.

7. Step #5: Results After you have recorded the location of your straw several times, write the changes you saw and any observations that you made while conducting this experiment.

8. Step #6 Conclusion Using complete sentences and descriptive words answer the question you wrote for step #1.