Scientific Variables
Summary
TLDRIn the script, Mr. Conan and Jacob conduct a science experiment to determine the effect of water on plant growth. They place two identical plants in the same location, providing equal sunlight, but vary the watering schedule. Through this controlled experiment, they discover that the plant watered daily grows larger, illustrating the impact of the independent variable (watering frequency) on the dependent variable (plant size). The dialogue also explains the importance of controlled variables in maintaining a fair experiment.
Takeaways
- 🌱 Mr. Conan is conducting an experiment to test how different watering frequencies affect plant growth.
- 🤔 Jacob suggests that the experiment might be testing how well plants grow based on the amount of water they receive.
- 📍 The plants are placed in the same location and receive the same amount of sunlight to control for these variables.
- 💧 The independent variable in the experiment is the amount of water each plant receives.
- 🚫 Changing multiple variables at once would make it difficult to determine the cause of any growth differences.
- 🌟 Controlled variables are aspects of the experiment that remain constant to ensure fairness, like location, light, and plant type.
- 🌿 The dependent variable is the outcome being measured, which in this case is the growth of the plants.
- 🔍 After spring break, the results show that the plant watered more frequently grew larger, indicating the effect of the independent variable.
- 🎉 Jacob correctly identifies the dependent variable as the plant's growth, which depends on the amount of water given.
- 🧪 To conduct a fair experiment, one must identify one independent variable, one dependent variable, and keep all other variables as controls.
Q & A
What is Mr. Conan's experiment about?
-Mr. Conan's experiment is about testing how much two plants of the same type grow based on the amount of water they receive, with all other conditions being the same.
Why does Mr. Conan water one plant every day and the other every other day?
-Mr. Conan waters one plant every day and the other every other day to test the effect of different watering frequencies on the growth of the plants.
What does Jacob correctly identify as the purpose of the experiment?
-Jacob correctly identifies that the experiment is testing how well the plants grow depending on how much water they get.
Why does Mr. Conan place both plants in the same location?
-Mr. Conan places both plants in the same location to control for environmental variables like sunlight and temperature, ensuring a fair test.
What is the independent variable in Mr. Conan's experiment?
-The independent variable in Mr. Conan's experiment is the amount of water the plants receive.
What is the significance of having controlled variables in an experiment?
-Controlled variables are significant in an experiment because they keep the test fair by ensuring that all factors except the independent variable remain the same.
What does Mr. Conan explain about changing only one thing at a time in an experiment?
-Mr. Conan explains that in order for an experiment to be fair, only one thing should be changed at a time, which is the independent variable, while all other factors remain constant.
Why can't Mr. Conan play different music for the plants in this experiment?
-Mr. Conan can't play different music for the plants in this experiment because it would introduce another variable, making it impossible to determine if the results were due to water or music.
What is the dependent variable in Mr. Conan's experiment?
-The dependent variable in Mr. Conan's experiment is the growth of the plants, which is measured by how big they get.
What conclusion does Jacob draw from the results of the experiment?
-Jacob concludes that the independent variable, the amount of water, had an effect on the plants' growth, as the plant that received more water grew bigger.
How does Mr. Conan ensure that the experiment's results are due to the independent variable and not other factors?
-Mr. Conan ensures the experiment's results are due to the independent variable by keeping all other variables, the controlled variables, the same.
Outlines
🌱 Experimenting with Plant Growth and Watering
In the first paragraph, Mr. Conan introduces Jacob to a scientific experiment involving two plants placed in the same location and receiving the same amount of sunlight. One plant is watered daily, while the other is watered every other day. The purpose of the experiment is to determine the effect of water quantity on plant growth. Mr. Conan explains the importance of keeping all other factors constant, such as location and sunlight, to ensure the experiment's fairness. He introduces the concept of the independent variable (the amount of water) and controlled variables (all other factors that remain the same). The discussion also touches on the idea of changing only one variable at a time to draw accurate conclusions from the experiment.
🌳 Analyzing Results and Understanding Variables
The second paragraph continues with the experiment's outcome after spring break. Jacob and Mr. Conan observe that the plant watered more frequently has grown larger, indicating that the independent variable (watering frequency) has had an impact on the plant's growth. They confirm the experiment's fairness by acknowledging that all controlled variables, such as sunlight and location, remained constant. Mr. Conan then introduces the concept of the dependent variable, which is the outcome being measured (plant size). He explains that in an experiment, the dependent variable is what changes as a result of the independent variable. The paragraph concludes with a summary of the key elements of a fair experiment: one independent variable, one dependent variable, and all other factors kept constant as controls.
Mindmap
Keywords
💡Experiment
💡Independent Variable
💡Dependent Variable
💡Controlled Variables
💡Hypothesis
💡Fair Test
💡Variables
💡Watering Schedule
💡Growth
💡Control
💡Scientific Method
Highlights
Mr. Conan is conducting an experiment with two plants to test the effect of water on their growth.
Jacob offers to help with the experiment, showcasing a collaborative approach to scientific inquiry.
Both plants are placed in the same location and receive the same amount of sunlight, ensuring a controlled environment.
One plant is watered daily, while the other is watered every other day, creating a variable for the experiment.
Jacob correctly identifies that the experiment is testing how water affects plant growth.
Mr. Conan explains the importance of keeping all other factors constant except for the water amount.
The concept of an independent variable is introduced as the single factor being changed in the experiment.
Jacob suggests changing the location or music for the plants, but Mr. Conan explains why these would not be suitable for this experiment.
The term 'controlled variables' is introduced for factors that are kept constant to ensure a fair experiment.
Mr. Conan emphasizes that only one independent variable should be changed at a time for a valid experiment.
Jacob understands that selecting one variable to change makes it the independent variable of the experiment.
The experiment concludes that the amount of water is the independent variable affecting the plants' growth.
Mr. Conan and Jacob confirm that the plant receiving more water grew larger, indicating the impact of the independent variable.
Jacob recalls the term 'controlled variables' and understands their role in maintaining the experiment's fairness.
The dependent variable is revealed to be the outcome being measured, which in this case is the plant's growth.
Jacob concludes that the independent variable is what is changed, the dependent variable is what is measured, and all else are controls.
Mr. Conan and Jacob plan for a dance party, showing a balance between work and leisure in their scientific pursuits.
Transcripts
hey good morning mr conan
what are you doing good morning jacob
i am doing an experiment well
do you mind if i help
of course you can jacob come on over
here
i'll show you what i'm doing look up
here on the windowsill i have two plants
both the plants are in pretty much the
same location and get the same amount of
sunlight
this first plant however i water every
single day
this plant however i only water every
other day
so jacob in this experiment
what do you think it is that i'm testing
well
since you're the same type of plant and
in the same location
are you testing how well they grow
depending on how much water they get
that's absolutely correct jacob i'm
measuring how much the plants grow
based on how much water they get so why
did you place them both in the same
place
wouldn't have been fun to put one
somewhere and somewhere else and maybe
maybe have different amounts of soil oh
oh we could also change
uh what we musically play for them
easy easy calm down jacob that actually
wouldn't work in this experiment
let's talk about why if we set up the
experiment
and one of the ways you suggested by
putting the two plants in different
locations
this first plant would receive more
water but less sunlight
the second plant would get less water
but more sun so do you see the problem
yet jacob
oh what mr coning i think i do
we're changing too many things at the
end of my experiment
i couldn't say that it was the water or
the sunlight that made it grow more
because i changed too much you got it
buddy
in order for an experiment to be fair
you can only change
one thing at a time everything else in
the experiment should stay the same
in your experiment the thing that you
change
is called the independent variable
in order for a test to be fair you must
always only have
one independent variable and remember
that's the thing that you're going to
change
in our case it was the amount of water
that the plants received
you know what i think i get it
all of those things that i talked about
like changing where they were
and the music that they were listening
to if i selected just one of those
they all could make good experiments but
i can only select one
that's right jacob and the one thing you
select becomes your
independent variable
right you are jacob so mr conan
is there a name for everything else what
do you mean jacob
you know like all of the stuff that we
could have changed
but we didn't like keeping the plants in
the same location
or letting them have the same amount of
light or
using the same kind of plant that's a
great question jacob
and yes they do actually have a name
they're called the controlled variables
or sometimes just the control the
control
or the controlled variables are the
things that stay the same in the
experiment
the point of a control is to keep an
experiment
fair by keeping everything the same and
changing just
one thing we can say that that one thing
did
or didn't have an effect on what we were
testing
wow very cool so is that all there is to
an experiment mr conning
nope when it comes to scientific
experiments and variables
there's just one more part but let's
look at that
after spring break sounds good to me mr
[Music]
conning
[Music]
[Music]
monster thanks for taking care of my
science experiment during spring break
oh i didn't mean you mr monster i was
talking about my plants
please thought you're talking about me
you know i would never talk about you
like that
so when you watered them did you water
the left one every day
and the right one every other like i
asked oh
yes meat is good great
thanks buddy good morning mr coding
morning mr monster
well good morning ready to go check on
our experiment jacob
yeah let's do it please stay here
bye guys well would you look at that
wow yeah the plant that got more water
is bigger
so what does that tell you jacob it
tells me that the one thing we did
change
which is our independent variable in
this case the water
did have an effect on the plants and how
do you know it wasn't something else
like how much sunlight each plant
received that made one plant grow bigger
than the other one
that's easy we kept everything else the
same the same amount of light
the same place the same temperature even
by keeping all the other variables the
same
i can pretty positively say that by
watering one of the plants more
in this case actually cause it to grow
bigger i would have to agree with you
there jacob
and all those variables that you kept
the same to keep the experiment fair
what are those called do you remember
controlled variables
but wait wasn't there one last thing you
wanted to tell me about
yup that's right jacob and the other
thing is called
the dependent before you tell me the
answer mr conan
let me see if i can figure out what the
dependent variable is by myself
so i know what dependent means it means
to depend on something
like how i depend on my parents to give
me a place to live
so far so good keep going so
in our experiment the dependent variable
must be something that depends on
something else
like in our case how tall the plant got
dependent on how much water you gave it
that's right jacob an easier way to
think about it
is like this in an experiment the
dependent variable
is what you're trying to measure in our
experiment
we were trying to measure how big the
plants got
we found out that how big a plant got
depended on how much water you gave it
so the thing that we
changed was how much water so that's our
independent variable
the thing that we measured was how big
it got so that's our dependent variable
all right i get it when i do an
experiment
the thing that i'm measuring is my
dependent variable
the thing that i change and test is my
independent variable
everything else should stay the same and
those are my controls
that's right jacob so for your next
experiment
all you have to remember is that you
need one independent variable
and remember that's the thing that you
change one dependent variable
and again that's the thing that you're
trying to measure and finally keep
everything else the same
you should have a fair test awesome
thanks for your help mr conan
now how about we have that dance party
you promised you got it
hit it mr monster
you
関連動画をさらに表示
TYPES OF VARIABLES: INDEPENDENT, DEPENDENT, CONTROLLED SCIENCE 7 QUARTER 1 MODULE1 WEEK 1
How to explain controlled variables
Controlled Experiments - Overview and content Vocabulary
Do Plants Need Water and Sunlight to Grow? Let's Investigate! | MightyOwl Science | 2nd Grade
UGC NET Paper 1: Most Scoring Topics | Types of Variables | Based on Latest Syllabus
BIOLOGI | Praktikum Pembuktian Oksigen Sebagai Hasil Fotosintesis
5.0 / 5 (0 votes)