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All plants have an optimum medium PH (soil or non-soil) which will allow the maximum uptake of nutrients, when the PH is in the right range a plant will grow vigorously as all its needs are met, conversely a plant receiving water that is too acid or too alkaline (below 5.0 acid and above 8.0 alkaline) cannot absorb nutrient and all micro and macro elements will be 'locked out' resulting in poor,slow growth and eventual death. Houseplants survive poor treatment because most composts are naturally 6.8 to 7.0 around the same PH as most domestic water. Hard water areas around 7.5, soft water around 6.5 all within the ideal uptake range for most plants.
In addition, for example, take the bamboo plant you should give it filtered water instead of tap water. This is because there are some chemicals in tap water that are harmful to the bamboo plant. ther
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoThe Results that I got was I put food coloring in one vase of water and that flower turned blue after a few hours. It even grew farther than the one with plain water. The one with plain water stayed the same color of course , but it grew a little farther , because of the water gave it protein and the light.
Wiki User
∙ 13y agoThe purpose of this experiment is to test different types of water to see whether in affects the growth on plants.
Hypothesis - I believe that rainwater and bore water will cause the plants to grow most effectively as these types of water are natural (with no added chemicals) of which the plants are used to.
The independentvariable is the water. The water will be changed weekly in order to give the plant fresh water (of the same type). For example: if I was using Bore water for this experiment, I would empty out the water in the container weekly and put fresh Bore water in weekly. If I keep this consistency, I should end up with reasonable results.
The Dependantvariable is the plant. The plant will be measured every science lesson (in centimetres) to see how healthy and quickly the plant is growing, compared with other water types (such as rainwater, distilled water etc).
My suitable control(of a type of water) will be Bore water. I will be able to compare the results that I end up with, with the other members in my group that are using rainwater (Renee), Tap water (Molly) and Distilled water (Caitlin). I believe that my suitable control will best be compared with these types of water due to the differences of chemicals or natural vitamins and nutrients.
The following factors will remain constant:
· Soil - The same soil will be used throughout the whole experiment and will not be changed.
· Water type - Although the water will be changed weekly, the same type of water will be kept constant throughout the whole experiment and will not be changed.
· Container - The container used for the experiment will be kept constant throughout the whole experiment and will not be changed.
· Plant - Although the plant will grow in size, the type of plant (Vinca) will remain the same throughout the whole practical experiment and will not be changed.
Method of Practical Experiment
1. Find four two litre bottles (one per group member) and cut each bottle in half.
2. Get a rubber cork (that contains a hole) and thread a small piece of string through the hole.
3. Tightly push the cork into the spout of the bottle.
4. Turn the top half of the bottle upside-down and fill it with soil.
5. Plant a small 'Vinca' plant into the soil.
6. Repeat this process with the three other bottles.
7. Fill the bottom half of each bottle with the suitable control/specified type of water (Bore water, rainwater, tap water and distilled water).
8. Place the top half of the bottle (which contains the plant) into the bottom half of the bottle (which contains the specified type of water) of each bottle.
9. Each group member must label their plant with their name and the type of water contained so that everyone may tell them apart.
10. The setup process is complete and the plants will now have to be measured each science lesson (to see how healthy, fast and well the plants are growing depending on the specified type of water) and recorded in a table of results.
11. Empty and refill the water (of the correct type) in each container weekly.
Bore Water
Lesson
Leaves
Height (cm)
Water (cm)
Flower Buds
Flowers
Friday, 12th Feb
10
9 ½
Constant
0
0
Monday, 15th Feb
18
11
Constant
1
0
Friday, 19th Feb
22
12
Constant
1
1
Monday, 22nd Feb
24
13
Constant
3
3
Friday, 26th Feb
26
16
Constant
2 (1 opened)
3 (1 died)
Friday, 5th March
27
18
Constant
Several
3 (Plus 2 dead)
Tap Water
Lesson
Leaves
Height (cm)
Water (cm)
Flower Buds
Flowers
Friday, 12th Feb
8
6
10.3
?
?
Monday, 15th Feb
10
6 ½
9 ½
?
?
Friday, 19th Feb
14
8 ½
8 ½
?
?
Monday, 22nd Feb
18
10
7.7
?
?
Friday, 26th Feb
18
12
9.3
?
?
Friday, 5th March
21
15
6.3
4
1
Destilled Water
Lesson
Leaves
Height (cm)
Water (cm)
Flower Buds
Flowers
Friday, 12th Feb
10
6
6
0
0
Monday, 15th Feb
10
6 ½
6 ½
0
0
Friday, 19th Feb
13
8 ½
8
0
0
Monday, 22nd Feb
13
10
8
0
0
Friday, 26th Feb
14
12
10
0
1
Friday, 5th March
16
15
10 ½
2
1
Rainwater
Lesson
Leaves
Height (cm)
Water (cm)
Flower Buds
Flowers
Friday, 12th Feb
16
8 ½
?
0
0
Monday, 15th Feb
19
9
?
0
0
Friday, 19th Feb
19
11
?
0
0
Monday, 22nd Feb
21
15
?
0
0
Friday, 26th Feb
23
17
?
0
0
Friday, 5th March
24
18
?
1
1
Over time, the plants grew and the size sand amount of leaves increased. There were no real obvious patterns, trends or relationships between in the results.
The results show that the hypothesis was correct. The Bore Water experiment grew the healthiest at the fastest rate with many flowers fully formed. Although the rainwater experiment did not grow as many flowers, it still managed to get up to the same height as the Bore Water experiment. The healthy and fast rates of growth was firstly the Bore Water plant which grew from 9 ½ cm up to 18cm. Secondly the rainwater plant which grew from 8 ½ cm up to 18cm (but did not form as many leaves or flowers at the Bore water experiment). Both the Tap Water and Distilled water experiments started at 6cm and grew up to 15cm, but the Tap water experiment grew 2 more flower buds than the Distilled water experiment.
The type of water does affect plant growth, although this experiment was not completely reliable. Certain aspects of the experiments were not measured. The method is reliable but needs to be made sure that it is followed correctly. Also, the controls of variables were valid, so the unreliability of this experiment does not depend on the variables. The data and table of results are missing particular measurements, which makes it difficult to get reliable results.
The design of the experiment was accurate and reliable.
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