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Page 1: Scientific inquiry

Scientific Inquiry

Page 2: Scientific inquiry

Asking a Question•Ask a question that can be answered by gathering evidence.

EX: Which freezes faster, water or salt water?

Page 3: Scientific inquiry

Developing a Hypothesis•A hypothesis is a possible explanation for a set of questions.

•Must be testable.

•Often written in an If…then… format

EX: If I add salt to fresh water, then the water will take longer to freeze

(Making Hypothesis PP)

Page 4: Scientific inquiry

Designing an Experiment•Test your hypothesis by writing a step by step plan.

•Control your variables

Controlled Variable-

Variables that stay the same for the whole experiment

Manipulated Variable-The ONE

variable that you change on purpose

Responding Variable-What you

measure to get your results

Page 5: Scientific inquiry

Variables White Board Practice

Identify the following variables on your white

board:

- Controlled (can be more than one)

- Manipulated- Responding

Page 6: Scientific inquiry

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

Page 7: Scientific inquiry

Variables White Board Practice

Elizabeth 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

Page 8: Scientific inquiry

Variables White Board Practice

Smithers 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, they're 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

Page 9: Scientific inquiry

Variables White Board Practice

A 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

Page 10: Scientific inquiry

Collecting and Interpreting Data

•Finding patterns or trends in your measurements

•Data is often organized in a table or graph

Page 11: Scientific inquiry

Drawing Conclusions•Statements that sum up what you have learned from the experiment

•Includes a statement on if your data accepts or rejects your hypothesis

EX: Water containing salt freezes at lower temperatures than freshwater.

Page 12: Scientific inquiry

White Board Practice

Write 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

Page 13: Scientific inquiry

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

Page 14: Scientific inquiry

White Board Practice

Plants 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

Page 15: Scientific inquiry

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

Page 16: Scientific inquiry

White Board Practice

Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion

Page 17: Scientific inquiry

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

Page 18: Scientific inquiry

White Board Practice

If 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

Page 19: Scientific inquiry

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

Page 20: Scientific inquiry

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

Page 21: Scientific inquiry

White Board Practice

Will

Your answer choices are:- Asking a Question- Developing a Hypothesis- Designing an Experiment- Collecting and Interpreting Data- Drawing a Conclusion


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