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# Scientific inquiry

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### Scientific inquiry

1. 1. Scientific Inquiry
2. 2. Asking a Question•Ask a question that can beanswered by gathering evidence.EX: Which freezes faster, water orsalt water?
3. 3. Developing a Hypothesis•A hypothesis is a possibleexplanation for a set of questions.•Must be testable.•Often written in an If…then… formatEX: If I add salt to fresh water, thenthe water will take longer to freeze(Making Hypothesis PP)
4. 4. Designing an Experiment•Test your hypothesis by writing astep by step plan.•Control your variables Controlled Manipulated Responding Variable- Variable- Variable-Variables that The ONE What youstay the same variable that measure tofor the whole you change get your experiment on purpose results
5. 5. Variables White Board Practice Identify the following variables on your white board:- Controlled (can be more than one)- Manipulated- Responding
6. 6. Variables White Board Practice Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime. Homer decides to check this this out by spraying half of the shower with coconut juice. He sprays the other half of the shower with water. After 3 days of "treatment" there is no change in the appearance of the green slime on either side of the shower.- Controlled (can be more than one)- Manipulated- Responding
7. 7. Variables White Board PracticeElizabeth wanted to test if temperature affected how fast milk goes bad and curdles. She left milk in a room temperature closet, a fridge, and a oven that was turned on low heat. She then measured how rotten the milk was after 10 days.- Controlled (can be more than one)- Manipulated- Responding
8. 8. Variables White Board PracticeSmithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, theyre supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Smithers counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.- Controlled (can be more than one)- Manipulated- Responding
9. 9. Variables White Board PracticeA psychology teacher allowed his third period class to eat snacks while taking an exam. His fourth period class was not allowed to eat snacks while taking the same exam. He compared the test averages from both classes.- Controlled (can be more than one)- Manipulated- Responding
10. 10. Collecting and Interpreting Data•Finding patterns or trends in yourmeasurements•Data is often organized in a table orgraph
11. 11. Drawing Conclusions•Statements that sum up what youhave learned from the experiment•Includes a statement on if your dataaccepts or rejects your hypothesisEX: Water containing salt freezes atlower temperatures thanfreshwater.
12. 12. White Board PracticeWrite the correct step of Scientific Inquiry for each of the following statements.Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
13. 13. White Board Practice Will a plant grow faster when watered with water or juice?Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
14. 14. White Board PracticePlants watered with juice grow slower than those watered with water.Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
15. 15. White Board Practice If I water my plant with juice then it will grow faster than a plant watered with water.Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
16. 16. White Board PracticeYour answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
17. 17. White Board Practice• Plant the seeds in the containers. Seeds should be about one inch deep, one per container. Check the planting depths listed on each package.• Place your containers in a sunny window. Water the seeds. Poke holes in the bottom of the milk cartons for drainage before or after planting. Drainage is necessary or plants can get too much water and the roots will rot.• Place a small pie tin or container under the pots to catch the excess water.• Prepare the graph paper as to what you want to record: days, the inches and/or meters of growth. Excellent math correlation.• Watch for signs of growth. Begin measuring the plants and recording the growth when it first appears.• Attach a string to each container. A support string of several feet is necessary as bean plants usually climb the string. Bush beans will not climb but will need support.• Using the graph paper, compare the growth of the plants.Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
18. 18. White Board PracticeIf I put salt in freshwater then the water will freeze slower.Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
19. 19. White Board Practice Water containing salt freezes at lower temperatures than water containing sugar.Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
20. 20. White Board Practice Will water freeze slower if I put salt in it?Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion
21. 21. White Board Practice WillYour answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion