2. Methods

Equipment Requirements:

The equipment that we will need for this experiment:

(x9) 600ml beakers

900g of soil
(x1) Measuring beaker
(x54) Green beans seeds
(x1) Microwave
1890 ml of water
(x1) Weighing scale
(x1) Container (For water)
(x7) Disposable Gloves
(x2) Heat Lamps


Procedure of experiment:


1(i) Microwave 100g of soil for 15 seconds

 (ii) Microwave 100g of soil for 30 seconds
 (iii) Microwave 100g of soil for 45 seconds
 (iv) Microwave 100g of soil for 60 seconds

2(i) Microwave 210 ml of water for 15 seconds

 (ii) Microwave 210 ml of water for 30 seconds
 (iii) Microwave 210 ml of water for 45 seconds
 (iv) Microwave 210 ml of water for 60 seconds

3 (i) Put 100g of non-microwaved soil into 5 beakers (5, 6, 7, 8 ; acting as the control)

  (ii) Put the 100g microwaved soil that have been microwaved for 15, 30, 45 and 60 seconds into 4 beakers respectively (1, 2, 3, 4)

4 Then put 6 non-microwaved green bean seeds into each beaker


5 Pour 30ml of water into each of the 4 beakers everyday 

(1, 2, 3, 4)

6 Pour 30ml of water that has been microwaved for 15, 30, 45, 60 seconds into the 4 beakers respectively everyday (5, 6, 7, 8)


7 Pour 30ml of water that has been microwaved soil (1, 2, 3, 4)


8 Have a control with non-microwaved water into the beakers that have the microwaved soil (9)


9 Observe when the seeds start to germinate and record your findings. If all the seeds germinate, record the height of the shoots.


Here is the drawing (Plan):





















Setup 1(Top left of box on left): Soil microwaved for 15 seconds, natural water
Setup 2(Top right of box on left): Soil microwaved for 30 seconds, natural water
Setup 3(Bottom left of box on left): Soil microwaved for 45 seconds, natural water
Setup 4(Bottom right of box on left): Soil microwaved for 60 seconds, natural water
Setup 5(Top left of box on right): Water microwaved for 15 seconds, natural soil
Setup 6(Top right of box on right): Water microwaved for 30 seconds, natural soil
Setup 7(Bottom left of box on right): Water microwaved 45 seconds, natural soil
Setup 8(Bottom right of box on right): Water microwaved 60 seconds, natural soil
Setup 9(Middle of box on left): Natural Water and Soil

Variables list:

Variable
Type of variable
How is it changed, measured of kept the same

Time in microwave oven (soil)
Independent
Changed by putting the soil in the microwave for different lengths of time.
Time in the microwave oven (water)
Independent
Changed by putting the water in the microwave for different lengths of time

Amount of seeds
Constant
Kept the same by counting the amount of seeds in each pot.

Type of seed
Constant
Kept the same by counting the amount of seeds in each pot.

Age of seed
Constant
Kept the same by getting the seeds from the same packet

Amount of water
Constant
Kept the same by measuring the amount of water used to water the bean seeds and using the same amount
Amount of light
Constant
Kept the same by putting all the pots near to each other.
Temperature
Constant
Kept the same by putting all the pots near to each other



Finding out the results:



How fast the seeds germinate
Dependant
Using a timer

How tall the seeds grow
Dependant
Using the same ruler



Hypothesis: 

We expect that the seeds that are microwaved germinate slower and the shoot is shorter if they are microwaved longer.



Risk and Safety: 


Use gloves at all times when handling the containers/containers with water which we will take out from the microwave as the heat could burn and scald us.

Some of the risks of affecting the experiment: 
Wash hands after contact with soil to prevent contamination of soil.

Safety precautions taken: 
Wear gloves to prevent being scalded by hot water


Data analysis:

We will use the results we have gotten and then generate an average height. We will then use the average height of the setups over 9 days and plot them into a graph. This graph will then be able to tell us the average growth rate of the plant.
The average growth rate of the plant will tell us whether radiation if affecting it or not. 

No comments:

Post a Comment