here are the goals for today's lesson number one determine the scientific method number two
identifies the steps of a scientific method number three appreciates that the scientific method can
be used in finding answers and solutions to your own problems how are you today hope you're all
doing well before we start make sure you have your pen paper and self-learning module let me
first give you a short science fact
did you know that planet earth is 4.5 billion years old now yes planet earth doesn't have a birth
certificate scientists spent hundreds of years determining the age of the planet
scientists based the age of the planet on the rocks in the earth's ever-changing crust as
well as the rocks in the earth's neighbors such as the moon and visiting meteorites
the earth is the home planet that provides us life and also protects us from space so we should
always be thankful and at the same time take care of the resources from the earth so it will still
exist for the next generations
amazing right that's the short scientific fact when I was a kid even probably now I have so many
questions in my mind like how did life on earth existed million years ago? how do plants grow
why is the sky blue? do you know the origin of those things and what are they made of
in science, there's a way of answering questions want to know what it is it is the scientific
method and we will be learning about it today before we start let me ask you some questions
are you ready to prepare your pen and your paper? so let's begin read each question carefully
write only the letter of the correct answer for each question using a separate sheet of paper for
your answer
number one which of the following questions is best considered as scientific
a who invented electricity
b how long did dinosaurs live on earth
c how many koalas are there in Australia
d does the amount of salt in water affect the temperature at which it boils
number two what is the process of obtaining information using your senses
an inquiry
b conclusion
c observation
the scientific method
number three what is the series of steps designed to help you solve problems and answer
questions
a inquiry
b surveys
c interview
d scientific method
number four in which step of the scientific method do we use graphs
a analyze data
b asking questions
c making a hypothesis
d communicate results
number five when a scientist shares his findings with other scientists is blank
a. experimenting
b. analyzing data
c. making hypothesis
d. communicating results
are you done let us check your answers number one if your answer is letter d that is
correct does the amount of salty water affect the temperature at which it boils
number two when you are obtaining information using your senses you are making observation
and that is letter c
number three the series of steps designed to help you solve problems and answer questions is
scientific method letter d
number four we are using graphs in scientific method if we are analyzing data and that is letter a
number five when he shares his findings with other scientists he is communicating results and
that is letter d
there you go now let me ask you this how do you usually solve your problem or answer a question?
in my case what i do is i analyze the problem at hand and then think of a possible solution and try
the solution to see if it is effective or not for now let us explore the steps of the scientific method
are you ready that's great all we have to do is to read and understand the selection to be flashed on
screen then let's start the scientific method is like a roadmap that you follow to get to that
destination it is the process by which science is carried out scientific method is a step-by-step
procedure to help you solve problems and answer questions when using scientific method the first
thing you need to do is to make observations just look around you the possibilities for observations
and questions are endless and you may find it through observations after observation you may
come up with a question the next step is to develop a hypothesis hypothesis is an educated guess
next is to conduct an experiment to test the hypothesis after your experiment make sure to record
the observations and data so you will be able to analyze the
results
finally you need to draw conclusions
the main aim is to summarize the
findings of your experiment
and to see if your hypothesis is
accepted
or rejected let us further understand
each
step let us identify the six steps of
the scientific method
number one make observations
number two come up with a question
number three develop a hypothesis
number four conduct an experiment
number five record and analyze the
results
number six draw conclusions
scientific method is used to arrive for
the right answers to your questions
science is a way of thinking and a way
of gathering knowledge
about the world that is both accurate
and reliable
it is the quest to understand and
improve our knowledge of the world
around
us and how the things in it work
or why they work the way they do
scientific method is a series of steps
designed to help you solve your problems
and answer questions let's
elaborate the steps of the scientific
method
first step is to make observations
how are you going to observe
yes that's right you need to use
your five senses the sense of sight
sense of smell sense of taste
sense of hearing and sense of touch
second step come up with a question
based on your observations you may now
formulate a question
either a question or a problem that
needs to be solved
you know the basic wh questions
the third step is to develop a
hypothesis
a hypothesis is an educated guess
it is a possible answer to the question
you have formulated
keep in mind that it does not matter
whether your hypothesis
is right or wrong fourth step
conduct an experiment in this step
you will test your hypothesis through
experimentation
you will try your hypothesis to see if
it answers your question
and if not you think of another
hypothesis
the fifth step is to record and analyze
the results
make sure to be detailed in documenting
your results
you may use tables and graphs to convey
your results
this will also make your analysis easier
finally the sixth step is to draw a
conclusion
this is now the opportunity to talk
about your hypothesis
your experiment your results
and your conclusion which is the final
answer to your problem
or experiment conclusion
is connected to hypothesis and on this
part
you may now conclude that your
hypothesis
is accepted or rejected based on the
result of your
experiment now that scientific method is
clear
let us have an assessment consider
yourself
as a scientist the steps of scientific
method
are flashed on the screen
match the corresponding description for
each
step given you may write the letter
of your answer in your paper
number one identify a problem
based on your observation
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time's up when you identify a problem
based on your observation you
ask a question correct answer is letter
b
number two summarizes the results
either accept or reject the hypothesis
time's up when you summarize the results
either accept or reject the hypothesis
you actually draw a conclusion
correct answer is letter f
number three getting information
with the use of your senses
[Music]
okay time's up when you get
information with the use of your senses
you make observations that's right
letter a number 4
the data from the experiment will be
collected
and analyzed
[Music]
so time's up
once the data from the experiment is
collected
and analyzed you analyze the result
the correct answer is letter e
number five educated guess
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so your time is up when you have an
educated guess you have made a
hypothesis
letter c number six
is a step that is used to test
hypothesis
time's up when you test your hypothesis
you have experimentation
letter d
[Music]
remember scientific method is the step
a scientist will follow when conducting
an experiment
or when working on a scientific problem
however the steps may be used by you
in finding answers and solutions to your
queries
and problems be a keen observer
and a critical thinker
[Music]
in preparation for the next episode
you may prepare two apples
water milk
juice soda
and containers
all right so it's time to answer and
learn more from one of the questions
posted in sci-connected on deb ed tv
page
from center leslie age
16 years old from christian
ecclesiastical school
division of cyanosedal montecity
her question is why does every cell in
our body contain
dna not all cell in our body contains
dna
mature red blood cells cornified cells
that are found in our hair
skin and nails locked in dna
because these cells don't contain
nucleus
dna is vital for all living things
it is very important for inheritance
coding for proteins and genetic
instruction
guide dna instructs each
cell's development reproduction
and ultimately death of organisms
that's it leslie it's my pleasure to
know that
i helped you on your question if you
guys have questions
simply post it on psi connected on that
tv
page kindly follow this format
hope that you have learned something new
today
thank you so much for sticking with me
and see you
on the next episode again
this is mom khan scientifically saying
think critically do things differently
and that develops your ability
[Music]
you