BROAD BEAN PLANT

Affect Of Light and Water on a Broad Bean Plant

Name of Student

Name of Instructor

Date

Affect Of Light and Water on a Broad Bean Plant

Aim

To investigate the ways in which temperature affects the period germination & growth of a broad bean over the duration of 21 days. We will keep 3 beakers in 3 different climates of temperatures and observe and note the alterations the bean will go through. These temperatures will be:

Room Temperature

In a chiller at a set temperature of 5°centigrade

And, in a water bath in the set temperature of 35°

I will measure the shoots and roots of the beans and at the end of 3 weeks compare our results and see which temperature is ideal for a broad bean to grow in.

 

Prediction

I believe that in this investigation the beaker at room temperature will grow the best as we think this because the other two climates we believe are too extreme for the beans to grow in. The water bath we think may damage or kill the enzymes in the bean so there would be no growth. And we n the chiller the temperature would be too cold for any thing to grow in at all. We think that the cold would in fact slow down the growth of the broad bean.

So this is why we have come to the conclusion that it would be the best temperature at room temperature as you know in nature this is the temperature grows in. 

 

Variables

Independent

The variable that will be changed throughout the investigation is the temperature. For beaker 1 we will have it at room temperature this we cannot control as this is only based on the outside temperature.

Beaker 2 is kept at the constant temperature of 35°but there is a problem with this which we will outline in Problems foreseen

And in the chiller the temperature will be kept at the constant 5°but again there is another problem.

Dependent

I will be observing over 3 weeks any changes which may happen to the beans and measuring the shoots and roots at regular intervals.

From these measurements we will then analyze determine which temperature is most suitable for the broad bean.

I will observe also the temperature especially the one at room temperature to see what different temperatures will do to the broad bean.

 

Control

In this investigation we will control the temperatures of the beakers in the water bath and the chiller but we cannot control the temperature of the beaker at room temperature but it will range from 20° to 30°

When we water the beaker we will ensure it is always topped up to 150ml and we will make sure we do this every Monday, Tuesday and Friday

I will make sure that the shape and volume of the beaker is the same as it may effect my results

The length of blotting paper we will also make sure is the same about 15cm enough to go round the beaker once as too little will not water the beans sufficiently and too much ...