Question

scientific method - cfa
directions: in the scenario below, identify the following components of the experiment: title, hypothesis, dependent variables, independent variables, constant, controlled group, experimental group
scenario
the junior high school students in kchs wants to investigate the effect of organic fertilizer in the growth of mass cane plant. they gathered 4 pots of the same plant type in the same type of soil, with same amount of sunlight, and same amount of water.two pots of plant are watered with organic fertilizer and the two other pot plants are watered with synthetic fertilizer.they observed the size of the plants and tested every two weeks. after a month, they determined which plant grow more by measuring its length.
title: the effect of (changes in independent) on the (dependent variable)
hypothesis
if the
then.
independent variables

dependent variables

controlled variables

experimental group

controlled group

Explanation:

Step1: Identify the title

The experiment is about the effect of organic fertilizer on Mass Cane plant growth. So the title is "The Effect of Organic Fertilizer on the Growth of Mass Cane Plant".

Step2: Formulate the hypothesis

A possible hypothesis is "If the plants are watered with organic fertilizer, then they will grow more than the plants watered with synthetic fertilizer".

Step3: Determine the independent variable

The type of fertilizer (organic or synthetic) is what is being changed, so the independent variable is "Type of fertilizer".

Step4: Determine the dependent variable

The growth of the plants (measured by length) is what is being observed and depends on the fertilizer type, so the dependent variable is "Growth of Mass Cane plant (measured by length)".

Step5: Identify the controlled variables

The same type of soil, same amount of sunlight, same amount of water, and same type of plant are kept the same, so the controlled variables are "Type of soil, amount of sunlight, amount of water, type of plant".

Step6: Identify the experimental group

The plants watered with organic fertilizer are the ones being experimented on, so the experimental group is "The two pots of plants watered with organic fertilizer".

Step7: Identify the controlled group

The plants watered with synthetic fertilizer are the comparison group, so the controlled group is "The two pots of plants watered with synthetic fertilizer".

Answer:

TITLE: The Effect of Organic Fertilizer on the Growth of Mass Cane Plant
Hypothesis: If the plants are watered with organic fertilizer, then they will grow more than the plants watered with synthetic fertilizer
Independent Variables: Type of fertilizer
Dependent Variables: Growth of Mass Cane plant (measured by length)
Controlled Variables: Type of soil, amount of sunlight, amount of water, type of plant
Experimental Group: The two pots of plants watered with organic fertilizer
Controlled Group: The two pots of plants watered with synthetic fertilizer