Lesson 15 Assignment
Name:
Date: Day 1
Pg 457 Investigation 10-2D Build a Barometer Read through the investigation so that you have a clear idea of what you will be doing for the next FIVE days.
You gathered your materials in Lesson 14 so you are ready to go, right? Right! So, off we go.
Set up your materials as directed in the Procedure on page 457.
Record your data twice each day for the next five days.
If you miss a day, it is best to leave a blank. NEVER make-up data. Pre-lab question: What IS a barometer?
Question:
Procedure: How can a simple barometer be used to forecast weather? Include digital pictures or a scanned images of sketches of your set-up below. Observations:
Day Time of Day Barometer
Reading
(mm) Amount Up or Down from
Previous reading
(mm) Other Weather
conditions
(look outside!) 1 2 3 4 5 ©2008 HCOS/BCOS Science 10 Lesson 15 Assignment File Page 1 Outdoor
Temperature at
time of reading.
(degrees C) Analyze: Complete AFTER you take your Day 5 readings.
1. What causes the straw to move up and down? 2. What can you say about the atmospheric pressure if the straw points up?
3. What can you say about the atmospheric pressure if the straw points down?
4. Compare the changes in the overall weather with the changes in atmospheric pressure that occurred over the
course of your investigation.
Conclude and Apply
1. What does an increase in atmospheric pressure indicate about weather? Day 2
Pg 459 Check Your Understanding: 11, 12, 13, 16, 18 and 19
Complete the above questions in the space below.
Be sure to include enough detail that a stranger reading your responses could tell you what the question was. This is the end of your Lesson 15 Assignment.
Save your file, back it up to a secondary source other than your hard drive.
Then, upload this file to the Lesson 15 Hand-In Box. ©2008 HCOS/BCOS Science 10 Lesson 15 Assignment File Page 2

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