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Scientific Method
The scientific method is the basis of scientific investigation. A scientist will pose a question and formulate a hypothesis as a potential explanation or answer to the question. The hypothesis will be tested through a series of experiments. The results of the experiments will either prove or disprove the hypothesis. This category should contain questions and answers regarding the scientific method.
4,392 Questions
What are the different steps of scientific methods?
There 6 different steps of scientific methods or processes:
1.Identification of problem
2.Formulation of hypothesis
4.Experimentation
4.Observation
5.Interpretation of data
6.Conclusion
the .... of a conditional statement is found by switching the hypothesis and conclusion .
name the scientist that successfully explained the observations about the moving pollen
what approach to drug prevention is most effective
· T à To tune in and listen (eye contact); give the speaker your attention.
· Q à is to ask questions to make sure you understand what the person is saying.
· L à To listen to what the person is saying.
· R à Review to see if you understand the speaker, or to ask more questions.
(Source): http://www.decs.sa.gov.au/curric/files/pages/saisop/VacationLiteracy/smlist.htm
How can you apply getting high grades in steps in scientific method?
* You should know first the scientific method then memorizeit.,.,.,.,hehe * alamin mo ung "scientific method" then kabisaduhin mo.,.,.,
The philosophy that stressed education through problem solving and the scientific method is?
Pragmatism
The efficient market hypothesis deals primarily with?
the degree to which prices adjust to new information
The Pimsleur method refers to a way of learning foreign languages. If you listen to his recordings for 30 minutes during 10 days, he claims you can learn the basics of a foreign language. He claims that studying vocabulary or grammar goes against the natural path to learning a language. Like a child, we should absorb the language, as opposed to cramming it in our brains.
What is at the heart of the scientific method in all sciences?
Experimentation is at the heart of the scientific method. Any scientist begins with the observation of natural phenomena, hypothesizes what may account for such phenomena, tests the hypotheses by manipulating some aspect of nature that can be controlled, and measures the result against the state of affairs when no such manipulation is implemented. In this way, hypotheses that do not match nature's laws are falsified when the independent variables manipulated do not account for predictable results. The falsifiability of hypotheses is the hallmark of science. Without experimentation, there is no science.
Once there is an experimental finding that seems to demonstrate some understanding of how nature works, the results are communicated so that others may confirm or deny the reliability of the hypotheses now bolstered by evidence. This limits the probability that experimental results occurred by chance or were the outcome of human error. Thus, another important feature of science is replication. Any method used in any field of science must be reproduced by independent observers in order to be useful.
What is Peer debriefing in qualitative research?
seek to understand the world through the perspectives of others.
What is the purpose of using the scientific method?
to make careful observations
(got this off a study guide at school haha)
What is a description of the sequence scientific method?
The sequence of the scientific method moves in this way: Purpose > Research > Hypothesis > Experimentation > Analysis > Conclusion
What are two reasons why density is a useful property for identifying substances?
Density is specific for each substance. Also the measurement is generally simple.
What skills are needed to use the scientific method?
1) A little knowledge in your area of interest, and the resources to get more knowledge as you need it; 2) A great deal of curiosity. Then, it's a matter of getting the hang of thinking in terms of dependent and independent variables, and how you are going to set up your investigation. Just GO with it; mistakes and wrong turns are part of the process (within reason... you don't want to spend time and fortunes attempting to prove that the earth is a globe...)
Substances that dissolve in water?
substances that dissolve in water include, sugar, salt and others.
Which action directly helps a plant make new seeds?
The action that directly helps a plant make new seeds is fertilization. Once these seeds have developed they will be dispersed.
What is one variable that is purposely changed to test a hypothesis?
The independent variable.
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Answers to the scientific method bikini bottom experiments?
Scientific Method Answer Key
Bikini Bottom Experiments
(1) Flower Power
SpongeBob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a
special Flower Power fertilizer to see if will help plants produce more flowers. He plants two plants of
the same size in separate containers with the same amount of potting soil. He places one plant in a sunny
window and waters it every day with fertilized water. He places the other plant on a shelf in a closet and
waters it with plain water every other day.
What did SpongeBob do wrong in this experiment? Explain.
SpongeBob did not provide both plants with the same amount of water and sunshine. In order to test the
fertilizer correctly, both plants should have been placed in the sunny window and watered every day with
the same amount of water. The only difference between the two plants should have been the fertilizer -
one plant would be watered with the water with fertilizer and the other would be watered with plain
water.
(What should SpongeBob do to test the effectiveness of Flower Power fertilizer? Write an experiment.
Answers will vary. Experiments should address the problems in SpongeBob's experiment.
(2) Super Snails
Gary is not the smartest snail in Bikini Bottom and believes he can improve his brain power by
eating Super Snail Snacks. In order to test his hypothesis, he recruits SpongeBob and several snail friends
to help him with the experiment. The snails ate one snack with each meal every day for three weeks.
SpongeBob created a test and gave it to the snails before they started eating the snacks as well as after
three weeks. Analyze the data in the chart and determine whether or not the Super Snail Snacks created
smarter snails!
Based on the data provided, do the Super Snail Snacks work? Explain your answer.
The Super Snail Snacks appear to have worked for Gary and Barry. Both of them increased their test
results after eating the snacks for three weeks. Larry did not show any improvement and Terry scored
lower on his second test. However, it is difficult to determine if the Super Snail Snacks are an effective
way to increase a snail's brain power based on this experiment alone as all the snails ate the snacks (no
control group). The gains shown by Gary and Barry may have been due to the Super Snail Snacks, but
further testing would be needed to make sure the results were not due to other factors.
(3) Bubble Time
Patrick loves bubble gum and would like to be able to blow bigger bubbles than anyone else in
Bikini Bottom. To prepare for the Bikini Bottom Big Bubble Contest, he bought five different brands of
bubble gum and needs your help to find the brand that creates the biggest bubbles. Write an experiment
to test the bubble power of the bubble gum brands and help Patrick win the contest.
Answers will vary. Students should make sure to perform the same test with each brand in order to obtain
reliable results. Repeated trials would generate more data to analyze and help Patrick pick the best
bubble gum brand for the bubble blowing contest.
Extension Idea: Provide an opportunity for the students to try their bubble gum tests!
1 - Patty Power
Which people are in the control group? Group B
What is the independent variable? New sauce
What is the dependent variable? Amount of gas
What should Mr. Krabs' conclusion be? The new sauce appears to work as it reduced the amount of gas
produced in 60% of the people tested.
Why do you think 10 people in group B reported feeling better? They thought they were getting the new sauce as
a result thought that they didn't have as much gas. (Placebo effect)
2 -- Slimotosis
What was the initial observation? Slimotosis on Gary's shell
What is the independent variable? Cures (Seaweed and Dr. Kelp)
What is the dependent variable? Slime and odor
What should Sponge Bob's conclusion be? Although Gary's symptoms have disappeared, it is not known which
cure was the one that worked. He should redo the experiment and include a control group as well as two other
testing groups for each of the proposed cures.
3 -- Marshmallow Muscles
Which person is in the control group? SpongeBob
What is the independent variable? Muscle cream
What is the dependent variable? Amount of marshmallows lifted (strength)
What should Larry's conclusion be? Since both Patrick and SpongeBob improved their results by the end of two
weeks, it does not appear that the claims for the special muscle cream are true. If the claims were correct, we
should have seen Patrick's amount double, but not SpongeBob's amount. The improvements were likely a result
of Larry's special workout.
4 -- Microwave Miracle
What was Patrick's hypothesis? He hypothesized that feeding fish microwaved food would make them become
smarter.
Which fish are in the control group? The fish that eat regular food
What is the independent variable? Microwaved food
What is the dependent variable? Time required to complete the maze
Look at the results in the charts. What should Patrick's conclusion be? According to the data, all but two fish in
each group decreased their time through the maze. The special food does not appear to be a big factor in
helping fish become smarter.
Note: Of the fish that did improve their times, the fish that were fed the special food averaged a 9.625 seconds
decrease in their times compared to an average decrease of 6.625 seconds in the fish group that received the
regular food. This does show a slight improvement for the microwaved food group, but not enough to prove that
his hypothesis was correct. More testing would need to be done
Krusty Krab Breath Mints
1. Which people are in the control group? The people who received the mint without the secret ingredient
(Group B) would be the control group.
2. What is the independent variable? Secret ingredient in the breath mint
3. What is the dependent variable? Amount of breath odor (or bad breath)
4. What should Mr. Krabs' conclusion be? The breath mint with the secret ingredient appears to reduce the
amount of breath odor more than half the time, but it is not 100% effective.
5. Why do you think 10 people in group B reported fresher breath? This may be due to the placebo effect.
Sponge Bob Clean Pants
6. What was the problem? SpongeBob's pants were not clean.
7. What is the independent variable? Laundry soap
8. What is the dependent variable? Amount of dirt left on the pants (or how clean the pants were)
9. What should Sponge Bob's conclusion be? Clean-O laundry soap does not appear to be effective in cleaning
his pants.
Squidward's Symphony
10. What is the independent variable? Instrument
11. What is the dependent variable? Number of jellyfish
12. What should Squidward's conclusion be? The clarinet did seem to attract a large number of jellyfish, but
the average number for the three trials also matched the average for the guitar. The flute attracted the least
number of jellyfish, but the average for this category is still larger than the control. Music seems to attract
jellyfish in greater numbers than when no music is played. Squidward's hypothesis that the clarinet attracts
larger numbers of jellyfish than other instruments is not proven by this experiment alone.
13. Are the results reliable? Based on the limited amount of information provided, it is difficult to tell if
Squidward's results are reliable. The description did not tell how long each break was between trials. Did he
leave enough time for the jellyfish to "clear out" of the area? (NOTE: Accept other potential flaws that
students can support.)
Super Bubbles
14. What did the Super Bubble ads claim? The ads claimed that the Super Bubble solution would produce
bubbles that were twice as large as those made with regular bubble soap.
15. What is the independent variable? Type of bubble solution
16. What is the dependent variable? Size (diameter) of the bubble
17. a. Calculate the average diameter for each. Super Bubble = 15.1 cm Regular Soap = 11.5 cm
b. What should their conclusion be? The Super Bubble solution did not seem to produce bubbles that were
twice as large as those made with the regular soap. Although the average size for the Super Bubble
solution was larger than the average size for the regular soap, it was not "twice as large" as the ads
claimed. In fact, only two of the ten trials had results that would fit the ads claims.
18. Are the results reliable? Why or why not? The description does not say who blew the bubbles for each
solution. There may be differences in bubble sizes due to the person blowing the bubble rather than the bubble
solution. They might have considered having each person blow 5 bubbles with each solution. (NOTE: Accept
other potential flaws that students can support.)
