Scientific Method

1. Scientific Method

2. ALCOS 1 • 1a-Students will be able to identify steps within the scientific process • 1d-Students will pracitce identifying examples of hypothesis, as well as writing examples of hypothesis.

3. 2 general types of investigations • 1. Descriptive-Based on Observations. Observations: an act of noting and recording an event, characteristic, behavior, or anything else detected with an instrument or with the senses.

4. 2 types of investigations • 2. Experimental-Involves the manipulation of and control of variables • What are variables?.......... • The things you want to test…. • Think of some examples……

5. Variables • How many licks does it take to get to the center of a tootsie roll pop? • What happens when you put a gummy bear in water? • Does an M&M melt faster in your mouth or your hand?

6. Types of variables • In scientific investigations, there are normally 3 types of variables • 1. independent variables • 2. dependent variables • 3. Controls

7. Ask a Question • Can be student or teacher generated • Should relate to the purpose of the experiment • Should identify what you want to test (independent variable) • Should identify what you want to measure (dependent variable) • Should have quantifiable data (numbers)

8. Hypothesis • IF………then……..,because……. • All hypothesis will be stated in if, then, because statements. • Should show what effect the independent variable has on the dependent variable.

9. Procedure • Sequence of steps that should be followed in order…..

10. Data/observations • Results drawn from the procedures • Should be organized and shown in either data tables or data charts • Graphs also show data in a way that allows for easy comparison, shows trends and allows predictions of future trends

11. conclusion • Explaining and addressing how the investigation addressed the hypothesis. • Do your conclusions prove or disprove your hypothesis

12. Lemon of a lesson • Let’s look at your observations and develop a lab notebook entry.

13. Question? • What observations should be made, and how can I record those observations to best describe this lemon?

14. hypothesis • If I find as many markings as possible and write down as much information as possible, thenanother team should be able to pick out my lemon from the bowl, because the markings will help others to identify the lemon.

15. Procedure • See Lemon of a Lesson Handout

16. Data/observations

17. conclusions

18. homework • To be turned in Tuesday-please place in drawer marked “Homework” • Develop a hypothesis for each of the “Be” Attitudes.

19. example • If I am on time for science class, then I will be in my seat working on the bell ringer with all supplies at my lab table, because being on time allows each person to fulfill their assignments.

20. Now it is your turn • Develop a hypothesis for the other four “Be” Attitudes.