Define science in your own words Science the
- Slides: 47
Define science in your own words
Science the study of the physical world by observations for the purpose of understanding the world
Through the study of science, we begin to understand the physical world
What image comes to mind when you think of a scientist?
How do scientists go about finding the answers to their questions?
Scientific Method the organized way in which scientists find the answers to questions/ problems/
What are the steps of the scientific method?
Scientific Method 1. Identify A Problem 2. Search for information 3. State A Hypothesis 4. Conduct An Controlled Experiment 5. Gather and Record Data 6. State A Conclusion 7. State New Questions
What is a hypothesis?
Formulate A Hypothesis hypothesis - a possible or tentative answer to a scientific question. - a temporary explanation for an observation - an educated guess
Scientific Method Conduct A Controlled Experiment What is the function of an experiment? The experiment tests the validity of the hypothesis; (invent a test which will tell us if our hypothesis is valid or not)
Controlled Experiments Run 2 experiments set up in the same way. Intro a variable to one experiment. Can be any factor – light, water, etc.
The second experiment will not receive the variable.
Control part of the experiment without the variable
Acupuncture
Does Acupuncture work? e. g. for relieving back pain?
1, 100 patients randomly assigned to receive either: • acupuncture - Experimental group • sham (fake) acupuncture - control (needles inserted, but not deep enough; not inserted in acupuncture points; not moved) • conventional therapy - control
Results Conventional therapy 27% improved Acupuncture 47% improved Sham acupuncture 44% improved
Do large doses of vitamin C speed up the healing of surgical wounds?
What would you measure?
How is the “control” part of an experiment different from the other part of an experiment?
Control part of the experiment without the variable
Why is the control important? The control gives you something to compare with the variable part of your experiment!
The control is the basis of comparison in a scientific experiment
By comparing the results of the variable with the results of the control of the experiment, we see the effect (if any) of the variable
HW # 7 Design an experiment that would determine the effect of caffeine on human strength
HW # 2 Design an experiment that would determine the effect of caffeine on human strength Problem Q. How does caffeine affect human strength? Hypothesis Caffeine increases human strength.
Independent variable I (the scientist) change this to see what happens (the cause) the “variable” in an experiment Dependent variable what happens (as a result of the change in the independent variable (the effect); what is measured!!!
How do we set up a graph for the independent and dependent variable?
Problem: What is the effect of exercise on the amount of sweat produced? What is the independent variable? exercise What is the dependent variable? amount of sweat produced What will we measure? How will we set up a graph? Amount ? of Sweat (Dependent variable) ? Exercise (Independent variable)
Problem: What is the effect of exercise on the amount of sweat produced? How will we set up a data table to show the ? Exercise Amount ? of Sweat results?
Scientific Method 1. Identify A Problem ask a question about something we want to know about 2. Search for information regarding topic journals, databases, observations 3. State A Hypothesis suggest an answer (an educated guess) to the question
Can a hypothesis be proven?
A hypothesis can NEVER be proven! A hypothesis can be disproven by a single experiment! Anything in science is falsifiable!
A hypothesis is accepted of all of its predicted effects are observed & the same results are found again.
4. Observing & Measuring Use tools to aid observation and to make measurements. Make tables to record data.
5. Gather & Record Data Gather info and organize it into tables, charts, & graphs. State results of experiment.
6. State Conclusion Report whether or not your hypothesis is supported or disproven
7. State New Questions Your results will always give rise to new questions and problems. Be sure to state them!
8. Report Data A lab report for you, a publication or lecture for others. This step allows others to repeat your experiment.
- In your notebook define the following terms
- Science in my own words
- Define acceleration in your own words
- Define manifest destiny in your own words.
- View from the window at le gras
- Loyalty in your own words
- What type of sae is when you own your own business
- Making new words your own
- In your own words questions
- Describe them briefly
- Description in your own words
- Who is the first person to arrive at juliet's tomb
- Put this in my own words
- Ruae national 5
- Fccla creed meaning
- Explain the fccla creed in your own words
- Using your own words
- Oligarchy explanation
- Put it in your own words
- Quote summarizer
- Making new words your own lesson 6
- Intramurals sports definition
- Ffa creed paragraph
- In your own words questions
- Summarizing is a retelling in your own words
- Presenting someone else's words or ideas as your own is
- Explain the cartoon in your own words
- Entrepreneur conclusion
- Your conscious awareness of your own name and self identity
- Give us your hungry your tired your poor
- Mother teresa in my own words
- A restatement of an original passage
- Jesus in his own words
- Got my own
- How to make a parable
- How to make a parable
- The life you save may be your own irony
- The life you save may be your own analysis
- Lesson four living on your own
- A 14 line poem
- Mind your own business
- Ruffles has ridges
- Carry your own weather
- Figurative language definition in poetry
- Guess the writer riddle
- Design your own coat of arms
- Spatial order writing
- Advantages of writing your own mission statement