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im confused!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Grass measurement+variables
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deleted-63089
- Posts: 5
- Joined: Sat Mar 05, 2011 1:15 pm
- Occupation: student 10th grade
- Project Question: I am doing a project on the effects of nitrogen phosphorus and potassium fertilisers on grass seed growth should i do the experiment a number of times to be sure [it takes 7 days for grass seed to germinate]
- Project Due Date: 9 April
- Project Status: I am conducting my experiment
Grass measurement+variables
Im nearly finished my experiment on 'Effects of nitrogen, phosphorus and potassium on grass growth' the thing is I didnt measure the grass each day should I have my hypothesis is 'If i apply different fertilisers to grass then they each would have a different effect on the grass growth' is this ok and what are variables? im confused!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
im confused!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!-
deleted-71827
- Former Expert
- Posts: 404
- Joined: Tue Sep 18, 2007 3:27 pm
- Occupation: Research Assistant
- Project Question: Neuroregeneration
- Project Due Date: N/A
- Project Status: Not applicable
Re: Grass measurement+variables
Hi!
Interesting project! So if that is your hypothesis, your independent variable would be different fertilizers and the dependent variables would be grass growth. However, in order for you to complete this project, you need to have a methodical way in which to measure how much grass growth there is. For instance, we give the suggestion that you should measure the grass height everyday in order to quantify grass growth. If you didn't measure the grass every day, you should have used another method of measuring your grass growth. Hope this helps!
Interesting project! So if that is your hypothesis, your independent variable would be different fertilizers and the dependent variables would be grass growth. However, in order for you to complete this project, you need to have a methodical way in which to measure how much grass growth there is. For instance, we give the suggestion that you should measure the grass height everyday in order to quantify grass growth. If you didn't measure the grass every day, you should have used another method of measuring your grass growth. Hope this helps!
"There is a single light of science, and to brighten it anywhere is to brighten it everywhere." -Isaac Asimov
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donnahardy2
- Former Expert
- Posts: 2671
- Joined: Mon Nov 14, 2005 12:45 pm
Re: Grass measurement+variables
Hi,
This is a great project, but you do need some measurements. If you haven't measured anything yet, it's not too late if your project is not due until April 9. There are a number of methods for measuring plant growth, and the guide on the Science Buddies website includes all of the possibilities:
https://www.sciencebuddies.org/science- ... owth.shtml
I recommend that you cut the grass and measure the length in millimeters of all of the samples every day for 7-10 days. This will give you quantitative data that you can plot on a graph.
Donna Hard
This is a great project, but you do need some measurements. If you haven't measured anything yet, it's not too late if your project is not due until April 9. There are a number of methods for measuring plant growth, and the guide on the Science Buddies website includes all of the possibilities:
https://www.sciencebuddies.org/science- ... owth.shtml
I recommend that you cut the grass and measure the length in millimeters of all of the samples every day for 7-10 days. This will give you quantitative data that you can plot on a graph.
Donna Hard