2. Which material is most likely to conduct heat well? a.Wood b.Plastic c.Paper d.Gold

3. The Scientific method The scientific way to ask and answer questions by making observations and doing experiments

4. Goals and objectives: I know the steps to the scientific method, and understand how to use it to 1.Ask well defined questions 2.Design and run experiments with one variable

5. Variable Variable: what you are comparing and testing, the one thing that changes

6. Step 1. Make an observation/Ask a question -What are you curious about? -Experiment or observe with a purpose -sets clear goals -Keep the question in mind the entire process…

7. Asking a question Good questions must be 1.Testable with the tools that you have 2.Give you data - number based results that are not based on opinions, but measurements.

8. Which of the following is the best scientific question “Which type of magnet is the best” “Which type magnet is the strongest?” “Where is each magnet made?”

9. Step 2. Form a Hypothesis -a hypothesis is an educated guess -can be made based on past experiences or previous observations -Your hypothesis will not always be right “My hypothesis is that the ________ magnet is the strongest because_____”

11. Step 3. Design an experiment -If the metal magnet is the strongest, then it will hold the most weight” How are you going to answer your question? -Most important step - include the tools and very specific steps -connect back to the hypothesis “

12. Experiment materials needed: 2 types of magnets: plastic stick figure, large metal clip A bag gram weights Steps: 1. Attach the bag to the magnet 2. attach magnets to magnetic board 3. Fill the bag with gram weights until the bag slides all the way down the board record your results in a table. 4. Repeat 3 times 5. record results

13. 3 trials? -same way with the exact same supplies 3 time at least. -You will not always have 3 variables (we are only testing 2 variables (types of magnets) but we must always test at least 3 times Turn and discuss with neighbors

14. Variables?!?! - what you are testing/changing -we are testing different types of magnets -everything else must stay the same -ex. we shouldn't fill one with 1 type of bead and the other a heavier bead

15. Step 4. Record the results/data - Usually in a table or a graph -Usually a number based measurements amount of mass that magnet held before it fell Magnet typeTrial 1Trial 2Trial 3Trial 4Trial 5 Pastic clip Metal clip

16. Step 4. Record the results/data - Usually in a table or a graph -Usually a number based measurements Magnet typeTrial 1Trial 2Trial 3Trial 4Trial 5 Pastic clip Metal clip

17. Step 4. Record the results/data - Usually in a table or a graph -Usually a number based measurements Magnet typeTrial 1Trial 2Trial 3Trial 4Trial 5 Pastic clip Metal clip

18. Step 4. Record the results/data - Usually in a table or a graph -Usually a number based measurements Magnet typeTrial 1Trial 2Trial 3Trial 4Trial 5 Pastic clip Metal clip

19. Step 4. Record the results/data - Usually in a table or a graph -Usually a number based measurements Magnet typeTrial 1Trial 2Trial 3Trial 4Trial 5 Pastic clip Metal clip

20. Step 4. Record the results/data - Usually in a table or a graph -Usually a number based measurements Magnet typeTrial 1Trial 2Trial 3Trial 4Trial 5 Pastic clip Metal clip

21. 5. Analyze the data -analyze means to look at carefully -Do the 3 trials agree with each other? -if there are some major differences from one trial to the next, then you may have made a mistake and need to retest

22. Step 6. State your conclusion -Was your hypothesis correct? -What did your test tell you? “My hypothesis ______ correct, the ________ magnet was the strongest”

27. Simple------------Complex -no matter how simple or complex the question -Steps may look different for different test, but they are basically the same

28. 1.Make an observation/ask a question 2. Make a hypothesis and prediction 3. Design and run an experiment 4. Collect data 5. Analyze data/make a conclusion