Solved by a verified expert:Plant Transpiration
Unit VIII
Assessment
Introduction
If you have
not already, you or someone you know will try to grow avariety
of plants either inside your house or outside in a garden. What type of soil do you
need? How often should you water the plants? Should you plant them in full sun?
Why do some plants need less water and some more? These are questions that many people
haveabout plants. In this activity, you will have a chance to manipulate different
variables tosee how much water some plants use and how much some
lose through transpiration.
Objectives
1.
Conduct virtual experiments to determine
factors that affect transpiration.
2.
Compare and contrast sustainable and
unsustainable farming practices.
Materials
Computer
with internet access
Directions
1.
Go
to: http://glencoe.mcgraw-hill.com/sites/dl/free/0078695104/383946/BL_10.html
2.
Read
the Purpose and Objectives.
3.
Read
and follow the information under Procedures and complete the lab for all 4
plants and all 3 variables.
4.
Reset the lab and complete the lab for the next set of
4 plants and 3 variables.
5.
Record
your information in the Results Table provided on this sheet.
6.
During
and after the lab, answer the questions below.
Type
all answers directly on the data sheet.
Select
Save As, and use your last name and student ID as a file name.
Upload
the data sheet as a .doc, .docx, or .rtf file when finished.
Questions
1 – 10 are short answer questions and should be answered in 2 to 3 words or 1
to 2 complete sentences. Each question is worth 2 points for a total of20
points.
1.
What
are the three different variables that you tested?
2.
State
your question.
3.
State
your hypothesis.
4.
Describe
the process of transpiration.
5. What environmental factors that you tested
increased the rate of transpiration? Was the rate of transpiration increased
for all plants tested?
6.
Did
any of the environmental factors (heat, light, or wind) increase the
transpiration rate more than the others? Why?
7.
Which
species of plants that you tested had the highest transpiration rates? Why do
you think different species of plants transpire at different rates?
8.
What
is your conclusion?
9.
Did
your results support your hypothesis?
10.
State
another question about transpiration that you would like to have answered that
you did not answer in this lab.
Results
Table 10 points
***You should include data for 8 different
plants. Make sure you reset the lab (upper right corner) to receive 4 more
plants.***
Amount of water transpired after 1
hour (mL)
Plant
Normal
Fan
Heater
Lamp
Question
11 is an extended response question and should be at least 200 words. Total: 20 points
11.
You want to reduce the amount of money that
you are spending at the grocery store. You and your family decide to plant a
small garden to provide a variety of foods. Since you completed the activity
above, you know that plants require certain nutrients in order to survive. Read
the information in the textbook concerning the future of agriculture (pages 586
– 592). What are some methods that you would implement into your garden? What would
you try to avoid? Make sure you provide a detailed answer.
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