Photosynthesis Virtual Labs.
Lab 1: Glencoe Photosynthesis Lab
Analysis Questions
1. Make a hypothesis about which color in the visible spectrum causes the most plant growth and which color in the visible spectrum causes the least plant growth?
If dark or light colors attract green plants, then they will grow a lot.
2. How did you test your hypothesis? Which variables did you control in your experiment and which variable did you change in order to compare your growth results?
I tested my hypothesis by using a green color for one side and an orange color for the other. My control variable was the light as the color remained the same for the whole simulation. The variable that was changed was
Results:
Filter Color
|
Spinach Avg. Height (cm)
|
Raddish Avg. Height (cm)
|
Lettuce Avg. Height (cm)
|
Red
|
18.33cm
|
13cm
|
11cm
|
Orange
|
14.66cm
|
8cm
|
6.5cm
|
Green
|
2.33cm
|
1.5cm
|
3.33cm
|
Blue
|
19.33cm
|
14cm
|
12.33cm
|
Violet
|
16.33cm
|
10cm
|
8.33cm
|
3. Analyze the results of your experiment. Did your data support your hypothesis? Explain. If you conducted tests with more than one type of seed, explain any differences or similarities you found among types of seeds.
The data supported the hypothesis. If more than one type of seed was tested, the sizes of each type of plant would be different in growth and would be the same by the color of the plant.
4. What conclusions can you draw about which color in the visible spectrum causes the most plant growth?
Blue color to the plants was most effective in growth than the other colors while green was the least effective as the plants grew the least.
5. Given that white light contains all colors of the spectrum, what growth results would you expect under white light?
I would expect great results in terms of growth. It would average at least 20 centimeters for the spinach, 16cm for the radish and 14 cm for the lettuce
Site 2: Photolab
This simulation allows you to manipulate many variables. You already observed how light colors will affect the growth of a plant, in this simulation you can directly measure the rate of photosynthesis by counting the number of bubbles of oxygen that are released.
There are 3 other potential variables you could test with this simulation: amount of carbon dioxide, light intensity, and temperature.
Choose one variable and design and experiment that would test how this factor affects the rate of photosynthesis. Remember, that when designing an experiment, you need to keep all variables constant except the one you are testing. Collect data and write a lab report of your findings that includes:
- Question
- Hypothesis
- Experimental parameters (in other words, what is the dependent variable, independent variable, and control?)
- Data table
- Conclusion (Just 1st and 3rd paragraphs since there's no way to make errors in a virtual lab)
*Type this document on a word processor or in Google Docs and submit via Canvas.
The question of this experiment is what is the best way of making photosynthesis the fastest? My hypothesis is that if white light is effective for growing plants, then it will be effective for photosynthesis. My Hypothesis was correct. In this experiment, I tested for the white, orange, green, and blue light
For each light, the higher the intensity was, the amount of bubbles that appear increased. The most effective light was the white light as more bubbles appeared more ever time the intensity was increased. The worst one was the green light as bubbles appeared the least on each intensity. This shows that colors like white are more effective because it attracts with plants well when doing photosynthesis and green is the least effective of all because it reflects off plant colors. The control variable was the temperature of the water. The independent variable was the intensity of the light against the water. The dependent variable was the result of the each tested intensity for each color of light.
This lab was about learning about how to create photosynthesis the fastest way. There were many possibilities of doing this like increasing sunlight by using a light source. This lab can be used in other experiment dealing with photosynthesis. This lab was a good experience on learning to create photosynthesis the fastest way.
Light Intensity Data Table (Time:30 seconds)
Light Intensity
|
White(Times bubbled in 30 seconds)
|
Blue(Times bubbled in 30 seconds)
|
Green (Times bubbled in 30 seconds)
|
Orange (Times bubbled in 30 seconds)
|
5
|
8
|
7
|
2
|
6
|
10
|
15
|
15
|
5
|
11
|
15
|
20
|
18
|
7
|
16
|
20
|
24
|
21
|
8
|
19
|
25
|
27
|
23
|
9
|
21
|
30
|
29
|
26
|
9
|
23
|
35
|
30
|
27
|
10
|
24
|
40
|
31
|
29
|
9
|
27
|
45
|
33
|
30
|
10
|
29
|
50
|
34
|
31
|
10
|
30
|
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