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Name: ______________________
Date: _______________________
Scientific Method
B
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Conclusion
Clarinet
Data table
Diagram
Driveway
Electromagnet
Experiment
Experimental method
Hypothesis
Oblong
Observe
Productivity
Question
Research
Results
Scientific Method
Slime
Symphony
Stopwatch
Thermometer
Variable
Scientific Method B - Page 2
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Recap
RECAP
1. To the best of your ability, fill in the diagram
below on the Scientific Method.
Scientific Method B - Page 3
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2. To the best of your ability, define
the words below.
Question:
3. Jaaka planted seeds with an oblong shape in three
containers. She placed ten seeds with the pointed end facing
down in one container. In the second container, she placed
ten seeds with the pointed end facing up. She put ten seeds
pointing sideways in a third container.
All the seeds were covered with soil. Each container was
given equal amounts of water and light each day. Within
three weeks, ten plants were growing in each of the
containers.
What conclusions can you draw from Jaaka’s experiment
What did Jaaka’s experiment show? Explain your reasoning.
Scientific Method B - Page 4
RECAP
Hypothesis:
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2. To the best of your ability, write what should be
found in each section of the experimental method.
I observe:
RECAP
I develop a research question:
I define the variables:
Scientific Method B - Page 5
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I experiment:
I analyze my results and present them:
Scientific Method B - Page 6
RECAP
I collect the data (results):
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THE SITUATION
There are several science stories on the next few pages.
Work in a group, go over each of the stories and answer
the questions to the best of your ability.
Students of different ages were given the same
jigsaw puzzle to put together. They were given a
time limit to see how long it took to finish the
puzzle.
1. What is the hypothesis?
Pasha wanted to find out which wheels were best
for her skateboard. She purchased 4 different
sets of new wheels. She and a friend set up a
slalom course on her driveway. Brittany rode
through the course 5 times on each set of
wheels. Her friend timed her with a stopwatch and recorded her
times. They then averaged the times for each set of wheels.
1. What variable is Pasha changing in her experiment?
Scientific Method B - Page 7
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1. What is wrong with this experiment?
Spong Bob notices that his pal Gary is suffering
from slimotosis, which occurs when a shell develops
a nasty slime and gives off a terrible odour. His
friend Patrick tells him that rubbing seaweed on
the shell is the perfect cure, while Sandy says
that drinking Dr. Kelp will be a better cure.
Sponge Bob decides to test this cure by rubbing Gary with
seaweed for 1 week and having him drink Dr. Kelp. After a week
of treatment, the slime is gone and Gary’s shell smells better.
2. What is wrong with this experiment?
3. If you had to do this experiment, how would you improve the
procedure to make it better?
Scientific Method B - Page 8
THE SITUATION
Mr. Smithers believes that a special
juice will increase worker productivity.
He creates two groups of 50 workers
each and assigns the same task to each group. In this
case, they’re supposed to staple a set of papers. Group
A is given the special juice to drink while they work.
Group B is not given the special juice. After an hour, Mr.
Smithers counts how many stacks of papers each group has
completed. Group A has 1587 stacks, Group B has 2113 stacks.
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Squidward’s Symphony
THE SITUATION
Squidward loves playing his clarinet and believes it
attracts more jellyfish than any other instrument
he has played.
In order to test his hypothesis, Squidward played a song on his
clarinet for a total of 5 minutes and counted the number of
jellyfish he saw in his surroundings. He played the song a total of
3 times on his clarinet and repeated the experiment using a flute
and a guitar. He also recorded the number of jellyfish he observed
when he was not playing an instrument.
The results are shown in the table below.
Trial
1
2
3
Number of Jellyfish
No Music
Clarinet
Flute
5
15
5
3
10
8
2
12
9
1. Does the music help attract jellyfish?
YES
Guitar
12
18
7
NO
2. Explain your reasoning.
3. Which instrument attracts the most jellyfish? ______________
Scientific Method B - Page 9
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1. In the space below, create a data table for this experiment.
Scientific Method B - Page 10
THE SITUATION
A student wanted to perform an experiment to see if a Great
White shark could bite through a steel or an aluminum cage.
The student obtained 2 of each type of shark cages and
hired divers with the exact same equipment to go into the
cages in waters infested with Great White sharks.
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THE SITUATION
Billy heard his father say that oil does not
warm up as quickly as water. “Is that really
true?” he wondered. He thought that if oil is
heated, then it would have a lower temperature
than water when both liquids were heated in the
same way.
Billy’s science teacher agreed to let him use
some materials and observed Billy. Billy placed
100 ml of water in a beaker and 100 ml o oil in a second beaker.
A thermometer was placed in each liquid. Both liquids were heated
on the same hotplate so they received the same amount of energy
in the same way.
Every 5 minutes, the temperature was noted. After 15 minutes,
the temperature of water read 90˚C and the temperature of the
oil 70˚C. Billy screamed out: “My Dad was right!”
1. Why do you think that Billy said his father’s assumption is correct?
Explain your reasoning.
Scientific Method B - Page 11
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Bart believes that mice exposed to microwaves
will become extra strong. Maybe he’s been
reading too much Radioactive Man!!!
He decides to perform this experiment by placing
10 mice in a microwave for 10 seconds.
He found that 8 of 10 microwaved mice were
able to push the block away and that 7 out of
10 of the non-microwaved nice were able to do
the same.
1. What conclusions can you draw from Bart’s experiment (Did
microwaving mice make them stronger)? Explain your reasoning.
Scientific Method B - Page 12
THE SITUATION
He compared these 10 mice to another 10 mice that had not
been exposed. His test consisted of placing a heavy block of
wood to block the mouse food.
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Review Questions
REVIEW QUESTIONS
Which Cup Holds Heat the Longest?
1. Which cup shows the greatest decrease in temperature? ______
2. Which cup shows the least decrease in temperature? ________
3. Which cup holds heat the longest?__________
4. What can you conclude from this experiment? Circle the correct
letter.
A. Water stays hot in all types of cups.
B. Paper cups keep liquid hotter than other types of cups.
C. Ceramic mugs are the best cups to hold hot liquids.
D. Styrofoam cups keep liquid hotter longer.
Scientific Method B - Page 13
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5. What variable was changed in the experiment with the three
cups? Circle the correct letter.
A. The temperature of the water.
B. The type of cup used.
C. The type of thermometer used.
6. What was the responding variable in the experiment using the
3 cups? (Hint: the thing that changes during the experiment)
A. The type of thermometer
B. The temperature of the water.
C. The amount of water.
D. The size of the cup.
7. The greater the amount of soap in a soap
water mixture, the bigger a soap bubble can be
blown.
How would you design an experiment to test
this? Use the space below to jot down your
answer.
Scientific Method B - Page 14
REVIEW QUESTIONS
D. The amount of water that was used.
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GOING FURTHER
Samwillie is curious about how strong an
electromagnet he can make. The electromagnet he
is thinking of testing, involves a battery and a wire
wrapped around a nail.
use the same size battery for each electromagnet. The variable will
be the size of the nail.
The number of paper clips the electromagnet picks up will be
measured and this will give an idea about the strength of the
electromagnet.
Write down a detailed procedure on how you would test the
different electromagnets.
 ___________________________________________
 ___________________________________________
 ___________________________________________
 ___________________________________________
 ___________________________________________
 ___________________________________________
 ___________________________________________
 ___________________________________________
Materials needed: _____________________________________
_____________________________________________________
OING
GOING FURTHER
He will wrap the wire the same number of times around the nail and
Scientific Method B - Page 15