(student) Scientific Method powerpoint high school

(student) Scientific Method powerpoint high school

1. The Scientific Method Science is the human effort to understand the natural world and how it works, with observable physical evidence as the basis of that understanding . Vanessa Jason Biology Roots

2. What is Science? 1 .  Studies the ____________ _________. 2. Discovers nature's ”________" about how things work. 3. Discovers __________________ . Science excludes the _________________ - events or things that cannot be explained by nature. What do you mean we’re not science? Haven’t you seen our movies???

3. Science is… Practical Based on ____________ An _____________ pursuit Systematic Sounds difficult, right? It isn’t! Science isn't mysterious or unattainable. The scientific method is really no different than science itself.

4. There are three main branches of science: _________ science ____________ science _____________ science Branches of Science

5. Branches of Science ________ is also considered a branch of science. Branches of science, including math, constantly _____________ each other.

6. Why is having a methodical approach to science useful? Why bother with the scientific method? Using a consistent, methodical approach to solving a problem leads to the ______________________ _____________ with the ____________________ ! The scientific method is something all of us use all of the time – being ______________ , asking ______________, seeking ______________ – these are basic parts of the scientific method.

7. The Scientific Method is all around us Fixing a flashlight Fixing your internet connection Trying a new recipe for the first time How are we going to solve this one, Bones? Using the scientific method, as we always do, each and every episode.

8. Inference, Hypothesis, Prediction An ______________ is a ___________ ________________for something based on prior _________________ or knowledge. Example- Gray skies mean rain; sore throats lead to the flu A ________________ is a _______________ ______________- it must be _______________! Example) Exercising will help me lose weight. Prediction - A prediction is ______________________________. Set up your prediction as an “ IF, THEN ” statement. Example) _____ I run 2 miles 5x a week for 6 weeks, ________ I will lose weight.

9. The Scientific Method The Scientific Method is a series of steps in which a ____________ and/or problem is _____________ by ______________ and ___________________. Step 1 _____________________________________. Step 2 __________________________________. Step 3 Form a _______________ (an explanation or possible answer).

10. The Scientific Method In order to get accurate results from your experiment, it must include _____ ______________ and a ___________ _______ : _______________ (manipulated) variable: what is _________ ________________________________. _____________ (responding) variable: what you ___________ during the experiment. ____________ group - a group that is NOT experimented on; left alone to see what would happen without your manipulations so that you can ____________ ___________. Step 4 ________________________. Experiment!

11. Independent vs. Dependent Variables Independent variable (or manipulated variable)- is what is changed. The dependent variable (or responding variable) is what you are measuring- The control group is what you left alone. Example- A new mosquito repellent is tested before it hits the market. One arm is sprayed, the other arm is NOT sprayed. After 6 hours, mosquito bites are counted. In this case it is _________________________________ _____________________________________________________ . ___________________________ The control group in this example is the ___________ _____________________________________.

12. A question might look like this: How does __________________ effect  _________________                   ( independent variable)         ( responding or dependent) Think:   The I ndependent variable is the thing that I changed . The D ependent variable d etermines my D ata. Independent vs. Dependent Variables

13. Experimental Group There are two groups in an experiment: the control group and the ____________________ group . The experimental group shows the __________ of the ____________ that was tested. Experiments should be designed to _____________________ ___________________________________________. In the mosquito repellent example, which arm serves as the experimental group? The _______________________- it is going to show the effect of the variable (the ________________) .

14. The Scientific Method Step 5 Analyze your __________ . During this step, you’ll want to __________________ your data by using __________ and/or ____________ .

15. Types of Data Data can be quantitative or qualitative . Quantitative= _____________ (quantity) Qualitative= __________________ (quality) (ex- colors, health, appearance, texture, behavior, etc.) Example) Gummy Bear Lab How much gummy bears _________ before and after experiment= _______________________ Overall ________________ of Gummy Bears before vs. after experiment =______________________

16. The Scientific Method When drawing conclusions, _____________________ ___________________________________________. - If hypothesis is rejected (unsupported), then it needs to be _______________. -If the hypothesis is accepted (supported), the experiment is typically _______________. Step 6 _________________________. This is the written portion of your experiment in which you share results and make connections.

17. Scientific Method in Action Question : Which brand of gum lasts the longest? Trident ® , Orbit ® , or Eclipse ® ? Which steps must be taken before designing the experiment? -______________________ -_______________________ How would you design the experiment? Which steps follow the experiment? -______________________ -Draw conclusions

18. Design an Experiment! Question: Does fertilizer increase the number of tomatoes on a single tomato plant? Tip: Use a higher number of plants… why? Higher numbers give more _________________results ! CONTROL GROUP EXPERIMENTAL GROUP

19. Design an Experiment The only difference between the two groups should be the addition of the fertilizer to the experimental group. Everything else should remain the same. Examples- Same amount of ____________. Same amount of ______________. Same _________ ________. Why is this important?

20. Modeling Sometimes, concepts in science are ______________ and can be better understood using ____________. Generally models are used for very big things (like the Earth) or very small things (like a molecule). Can you think of any other models useful in science?

21. Scientific Theory _____________ are formed if an experiment is ___________ many times and obtains the same results. A theory is an explanation for an occurrence; it can be ___________ as new data emerges. Examples: Theory of ____________ ______ _______Theory Scientific theories take a long time to develop! In order for a theory to have merit, it must be repeated many times by many different scientists. Have you heard of my theory of relativity?

22. Scientific Law A scientific _______ is something that has been proven true and correct numerous times, and can ____________ ______ something happens. Examples: Law of _______________ Law of Cosmic Expansion Typically, laws involve _______ and can be proven with numbers. Actually… I have three laws.

23. The Dark Ages Scholars such as Aristotle, Socrates, Archimedes, Pluto and Hippocrates are just some examples of _________ philosophers that have paved the way for modern science. During the “Dark Ages” (circa 500 to 1100 AD), the knowledge of these ancient philosophers was dismissed as _____________. This coincided with the rise of the Catholic church- religious ___________ governed much of what people thought or believed. People were often ________________ if they went outside religious thought.

24. The Renaissance Period The Renaissance (immediately following the Dark Ages in the 12 th century), a period of ________________ came. Renaissance means “___________” . The works of ancient scholars were rediscovered, ____________ were formed, and many emerging scientists used the ancient Greeks philosophies to build upon their own (Galileo, Francis Bacon). Francis Bacon also disproved some ancient thought as he made his own scientific journey. I was one of the earliest philosophers to design a scientific method.

25. The Age of Discovery Following the Renaissance period came the Age of ______________ . Within this time period, many were able to use the knowledge of their predecessors to advance in science like never before. Many of these scientists are still found in textbooks today, as their theories and laws are widely ______________ or known. Robert Hooke -_______ theory Sir Isaac ___________ Louis ______________ Johannes Kepler - Calculated mathematic laws of ________ Robert Boyle- Gas Laws