Lesson 14 26 July 2013
11:31:55
Pasted everything on log book
Cut the plants until height of 6cm.
Thursday, 25 July 2013
Thursday, 18 July 2013
Literature Review
Literature Review
Generating Questions
What conditions does Hydrilla Plants require to stay alive and grow?
The growth habit of hydrilla enables it to compete effectively for sunlight. It can elongate very rapidly, up to one inch per day, until it nears the water surface. Hydrilla is able to grow under a wide range of water chemistry conditions. It is commonly found in oligotrophic (low nutrients) to eutrophic (high nutrients) lakes (Cook and LÂâ€nd 1982). It can grow in water up to about 7% the salinity of seawater (Haller et al. 1974) or higher (Steward and Van 1987); and it tolerates a wide range of pH, but tends to grow better at pH 7 (Steward 1991).
How to measure the growth of the Hydrilla Plant?
We will measure the height of the Hydrilla plants everyday using a tape or a ruler and we will record down how much the Hydrilla Plant has grown. At the same time, we would use a data logger to record the oxygen level of the plant, which will let us determine the growth state of the plant.
Why choose Hydrilla Plants instead of other aquatic plants?
Hydrilla plants are common and are found quite often, in freshwater lakes, ponds, rivers, impoundments and canals, they too have a highly specialized growth habit, physiological characteristics, and reproduction that make this plant well adapted to life in submersed freshwater environments. It can grow quite quickly which allow us to complete the experiment in a relatively short amount of time, at the same time, the hydrilla is able to live at a shallow depth of a few inches or up to 20 feet.
Bibliography:
Langeland, K. (9 July 2013) Hydrilla verticillata "The Perfect Aquatic Weed" retrieved from http://plants.ifas.ufl.edu/node/184
Royle, L. (9 July 2013) “Hydrilla verticillata” New York Invasive Species Information retrieved from http://www.nyis.info/?action=invasive_detail&id=16
Types of Water
Carbonated Water
Carbonated Water is water into which carbon dioxide gas under pressure has been dissolved. The dissolved carbon dioxide gas under pressure might affect the growth of the Hydrilla Plants. Some examples of carbonated drinks are Coke, Pepsi and Sprite.
Tap Water
Tap water so that to be used as a control as it is the ‘purest’ among all the water types that we are planning to use.We will use the tap water and compare it with the rest to find out how the other types of water affected the growth of the Hydrilla Plants.
Pond Water
Water taken from our school’s eco-pond will be used as it is a form of ‘natural water’. As the pond water has many different minerals and micro organisms in it, it might affect the growth of the Hydrilla Plants.
Alkali Water
As Alkali Water is more towards the Alkaline side of the ph Scale, there is a chance that it would be used as we suspect that the presence of Alkali water might or might not aid the plant’s growth.
6W1H
Who?
We would be testing on Hydrilla plants, with the hypothesis: The investigation of how the type of solution would affect the plant’s growth
Where?
After setting up the experiment, we would leave the plants at the science under table light, so as to ensure that the solution of the plant is the only independent variable in the set-up.
When?
We would gather all the required materials and beginning of the week, leaving the plant to test for 5 days.
Why?
Water is a resource that is getting scarce, we are testing to find out that in the occasion that freshwater reaches a minimum, are able to plant aquatic plants in different areas, much like hydroponics for land plants.
What?
We are testing 4 different setups - alkaline water, tap water, carbonated water and pond water, to see if hydrilla will grow differently in such solutions.
Which?
We use hydrilla plants instead of other plants as it is quicker to get results from them compared to other plants.
How?
We would use data loggers as oxygen level detectors, starch test, the physical features(height) of the plant to determine whether the plant is able to grow in the different solutions, with the tap water as our control.
Variables
Independent variable
The type of water the hydrilla plant is in.
Dependent variable
The height and amount of oxygen produced by the plant.
Constant variable
The type of glass amount of water in the glass, place the experiment is in
Bibliography
Armstrong, S. (2013, JULY 09) “Gardening-know-how” Gardening-know-how retrieved, from http://whatisthatingredient.com/ingredient.php?id=60
Langeland, K. (2013, JULY 09) Hydrilla verticillata "The Perfect Aquatic Weed" retrieved, from http://plants.ifas.ufl.edu/node/184
Luis, A. Catherine, M. Poss, James. Donald, A. (2013, JULY 09) “Salinity and Alkaline pH in Irrigation,Water Affect Marigold Plants: II. Mineral Ion Relations” Hort Science retrieved, from http://www.ars.usda.gov/SP2UserFiles/Place/53102000/pdf_pubs/P2294.pdf
Morris, T. (2013, JULY 09) “Acid Rain and plant growth” Fullerton College. Retrieved from
http://staffwww.fullcoll.edu/tmorris/lab/lab_manual/acid_rain_04.pdf
http://staffwww.fullcoll.edu/tmorris/lab/lab_manual/acid_rain_04.pdf
Royle, L. (2013, JULY 09) “Hydrilla verticillata” New York Invasive Species Information retrieved from http://www.nyis.info/?action=invasive_detail&id=16
What is that ingredient (2013, July 09). “What is that ingredient” Retrieved from http://whatisthatingredient.com/ingredient.php?id=60
Whiting, D. (2013, JULY 09) “Plant Growth Factors: Water” Colorado State University retrieved, from http://www.cmg.colostate.edu/gardennotes/144.pdf
Sunday, 14 July 2013
Hypothesis
If i change the type of water the Hydrilla is in , then, the different the rate of growth the Hydrilla is
Friday, 12 July 2013
Research Proposal
Lesson 7 – Writing research proposals
1. Indicate the type of research that you are adopting:
1. Indicate the type of research that you are adopting:
- [ ] Test a hypothesis: Hypothesis-driven research
- [ ] Measure a value: Experimental research (I)
- [ ] Measure a function or relationship: Experimental research (II)
- [ ] Construct a model: Theoretical sciences and applied mathematics
- [ X ] Observational and exploratory research
- [ ] Improve a product or process: Industrial and applied research
2. Write a research proposal of your interested topic in the following format:
Title: An investigation of how different types of water affect the growth of a Hydrilla Plant
A. Question or Problem being addressed
A student wanted to find out how different types of water affect the growth of a Hydrilla plant. (The aim)
The independent variable is the type of water.
The dependent variable is the Hydrilla
The constants are:
(a) Amount of water
(b) the type of Hydrilla Plant used
(c) the type of glass the Hydrilla is placed in
(d) the same environment the Hydrilla is placed in
(e) the temperature of the water - (f) the number of leaves the Hydrilla hasB. Goals / Expected Outcomes / Hypotheses
Changing the type of water the Hydrilla is in affects the rate of growth of the Hydrilla.
C. Description in detail of method or procedures (The following are important and key items that should be included when formulating ANY AND ALL research plans.)
Equipment list:
Equipment list:
- - Clean beaker (250 ml) x 12
- - Hydrilla plant x 12
- - Dissolved Oxygen Sensor DO-BTA x 1
- - Forceps x 1
• Procedures: Detail all procedures and experimental design to be used for data collection
- Place all 12 Hydrilla into a dark room overnight to de-starch the plant
- Set up four beakers beside each other in the biology lab, repeat it 3 times
- Measure the height of all the Hydrilla
- Fill up each of the beakers with the 4 different types of water
- Place 1 Hydrilla Plant into each beaker
- Record the height of the Hydrilla on each day
• Risk and Safety: Identify any potential risks and safety precautions to be taken.
• Data Analysis: Describe the procedures you will use to analyze the data/results that answer research questions or hypotheses
1.Why Hydrilla?
-Hydrilla plants are common and are found quite often, in freshwater lakes, ponds, rivers, impoundments and canals, they too have a highly specialized growth habit, physiological characteristics, and reproduction that make this plant well adapted to life in submersed freshwater environments. It can grow quite quickly which allow us to complete the experiment in a relatively short amount of time, at the same time, the hydrilla is able to live at a shallow depth of a few inches or up to 20 feet.
2.What conditions does Hydrilla Plants require to stay alive and grow?
-The growth habit of hydrilla enables it to compete effectively for sunlight. It can elongate very rapidly, up to one inch per day, until it nears the water surface. Hydrilla is able to grow under a wide range of water chemistry conditions. It is commonly found in oligotrophic (low nutrients) to eutrophic (high nutrients) lakes. It can grow in water up to about 7% the salinity of seawater (Haller et al. 1974) or higher (Steward and Van 1987); and it tolerates a wide range of pH, but tends to grow better at pH 7 (Steward 1991).
E. Bibliography: List at least five (5) major references (e.g. science journal articles, books, internet sites) from your literature review. If you plan to use vertebrate animals, one of these references must be an animal care reference. Choose the APA format and use it consistently to reference the literature used in the research plan. List your entries in alphabetical order.
• Data Analysis: Describe the procedures you will use to analyze the data/results that answer research questions or hypotheses
- Check the pH of the different types of water the plant is in.
- Place 100 ml of the 4 types of water into each of the glass beaker.
- Check the plants to be similar.
- Place the similar plants into each of the 12 beakers filled with water.
- Check the height and oxygen produced by the plant everyday.
- Record observations.
1.Why Hydrilla?
-Hydrilla plants are common and are found quite often, in freshwater lakes, ponds, rivers, impoundments and canals, they too have a highly specialized growth habit, physiological characteristics, and reproduction that make this plant well adapted to life in submersed freshwater environments. It can grow quite quickly which allow us to complete the experiment in a relatively short amount of time, at the same time, the hydrilla is able to live at a shallow depth of a few inches or up to 20 feet.
2.What conditions does Hydrilla Plants require to stay alive and grow?
-The growth habit of hydrilla enables it to compete effectively for sunlight. It can elongate very rapidly, up to one inch per day, until it nears the water surface. Hydrilla is able to grow under a wide range of water chemistry conditions. It is commonly found in oligotrophic (low nutrients) to eutrophic (high nutrients) lakes. It can grow in water up to about 7% the salinity of seawater (Haller et al. 1974) or higher (Steward and Van 1987); and it tolerates a wide range of pH, but tends to grow better at pH 7 (Steward 1991).
E. Bibliography: List at least five (5) major references (e.g. science journal articles, books, internet sites) from your literature review. If you plan to use vertebrate animals, one of these references must be an animal care reference. Choose the APA format and use it consistently to reference the literature used in the research plan. List your entries in alphabetical order.
Armstrong, S. (2013, JULY 09) “Gardening-know-how” Gardening-know-how retrieved from http://whatisthatingredient.com/ingredient.php?id=60
Langeland, K. (2013, JULY 09) Hydrilla verticillata "The Perfect Aquatic Weed" retrieved from http://plants.ifas.ufl.edu/node/184
Luis, A. Catherine, M. Poss, James. Donald, A. (2013, JULY 09) “Salinity and Alkaline pH in Irrigation,Water Affect Marigold Plants: II. Mineral Ion Relations” Hort Science retrieved from http://www.ars.usda.gov/SP2UserFiles/Place/53102000/pdf_pubs/P2294.pdf
Morris, T. (2013, JULY 09) “Acid Rain and plant growth” Fullerton College. Retrieved from http://staffwww.fullcoll.edu/tmorris/lab/lab_manual/acid_rain_04.pdf
Royle, L. (2013, JULY 09) “Hydrilla verticillata” New York Invasive Species Information retrieved from http://www.nyis.info/?action=invasive_detail&id=16
What is that ingredient (2013, JULY 09). “What is that ingredient” Retrieved from http://whatisthatingredient.com/ingredient.php?id=60
Whiting, D. (2013, JULY 09) “Plant Growth Factors: Water” Colorado State University retrieved from http://www.cmg.colostate.edu/gardennotes/144.pdf
Langeland, K. (2013, JULY 09) Hydrilla verticillata "The Perfect Aquatic Weed" retrieved from http://plants.ifas.ufl.edu/node/184
Luis, A. Catherine, M. Poss, James. Donald, A. (2013, JULY 09) “Salinity and Alkaline pH in Irrigation,Water Affect Marigold Plants: II. Mineral Ion Relations” Hort Science retrieved from http://www.ars.usda.gov/SP2UserFiles/Place/53102000/pdf_pubs/P2294.pdf
Morris, T. (2013, JULY 09) “Acid Rain and plant growth” Fullerton College. Retrieved from http://staffwww.fullcoll.edu/tmorris/lab/lab_manual/acid_rain_04.pdf
Royle, L. (2013, JULY 09) “Hydrilla verticillata” New York Invasive Species Information retrieved from http://www.nyis.info/?action=invasive_detail&id=16
What is that ingredient (2013, JULY 09). “What is that ingredient” Retrieved from http://whatisthatingredient.com/ingredient.php?id=60
Whiting, D. (2013, JULY 09) “Plant Growth Factors: Water” Colorado State University retrieved from http://www.cmg.colostate.edu/gardennotes/144.pdf
Tuesday, 2 July 2013
What is a hypothesis?
What is a hypothesis?
A hypothesis is something like a prediction but less than a well-established theory. In science, a hypothesis needs to go through a lot of testing before it gets labeled a theory. A hypothesis is an educated guess about how things work.
Most of the time a hypothesis is written like this :
” if___(i do this) ____. then _____(this)____ will happen.”
Monday, 1 July 2013
Science Question Choice - Zhen Yu
My question is to see what type of water hydrilla plants grow best in.
As hydrillas are plants that are fully submerged in water, it will be easier to do this experiment with it.
We will have a total of 4 apparatus. 1 would be a hydrilla placed in plane, tap water. That would be the control. Another would be water from distilled water, like 'Rhino Water'. The third would be water from the eco-pond. Last but not least, the water in this apparatus would be rain water.
As hydrillas are plants that are fully submerged in water, it will be easier to do this experiment with it.
We will have a total of 4 apparatus. 1 would be a hydrilla placed in plane, tap water. That would be the control. Another would be water from distilled water, like 'Rhino Water'. The third would be water from the eco-pond. Last but not least, the water in this apparatus would be rain water.
Science Question Choice - Anurag Mahlawat
What will the environment for the control plant of the project?
As the plants will be in different types of water the environment will also be a factor thus, the question.
As the plants will be in different types of water the environment will also be a factor thus, the question.
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