Friday the 13th

OPENER: Scientific Thinking Cycle1. Pick up one envelope for each table group.

2. Place the steps in a logical sequence as a table group

1. Check with Ms. Russell when finished

3. If correct draw the cycle in your notebook using arrowsFreaky Friday the 13th!

Superstitious??? Here are some ways to avoid bad luck: Cross your fingers Avoid black cats Throw salt over each shoulder don’t look at the full moon through a pane of glass Touch a piece of wood

Today:

PPT Notes on Nature of Science Check-in Quiz

2nd Period- Stop and start quiz at 9:15 3rd Period- Stop and start quiz at 10:20

If time, work on completing the CCD chart as a class.

Homework: Complete CCD Chart: Nature of Science for Monday

9.17.13

OPENER: Aurora Borealis (page 6)Scenario: You are cross country skiing in Northern Canada and you come across this beautiful scene in the sky.

-Write down as many observations as you can of the image.-Based on your observations, what factors contribute to the formation of an Aurora Borealis?

9.18.13

TURN IN LAB SAFETY CONTRACT Open notes to observation lab (p. 8 or 10)

Today: Complete observation lab activity

Peer assess & report to Ms. Russell Complete PPT C-notes Read & Summarize “Just a Theory” article

9.19.13 OPENER: Collecting & Analyzing Data1. List at least 2 methods that can be used to collect

data.2. Using the data below what trends (patterns) do you

see?Plant Original

Height

Height after 1 week

Height after 2 weeks

Height after 3 weeks

Total Growth after 3 weeks

A (0mL fertilizer)

18.2cm

18.2cm

18.3cm

18.3cm 0.1cm

B (10mL fertilizer)

18.0cm

18.4cm

18.8cm

19.4cm 1.4cm

C (20mL fertilizer)

18.1cm

18.2cm

17.8cm

14.0cm

-4.1cm

D (30mL fertilizer)

18.1cm

17.0cm

14.8cm 8.2cm -

9.9cm

“Just a Theory” Article

1. Preview the article (photos, blurbs, layout)2. Read the article3. Re-read the article & mark the text:

Underline important information Circle difficult words Write your thoughts in the margin

Common summary mistakes…

Students will write their ideas/opinions about the article

Students will plagiarize the reading Students will change the meaning to match their

opinion

Group summary sentence

Make a list of the most important information in the paragraph Leave out nonessentials…details

Write one sentence that includes all of the relevant information in your paragraph

Decide who will share your summary to the class.

Whole Article Summary

1: 2: 3: 4: 5: 6: 7: 8: 9:

Pre-assessment

Do your best to show what you already know! There is no right or wrong its just a point to grow

from.

How are Cornell Notes useful?

• Generate your own questions

• Create Topic Headings

• Review material through summaries

• Mark the text on right side

• Add information after class (leave space)

• Quiz yourself on information

The Nature of Science

C- Notes

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What is Science?

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Science is an organized way of using evidence to learn about the natural world.

What is science?

What contributions has science made to our society?

What would the world be like without those contributions?

How has science improved your life?

What is Biology?

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What is a theory?

explain a wide range of observations and experimental results

supported by a wide range of scientific evidence

can change based on new evidence

What is the Scientific Method?

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set of steps that help us investigate a problem

Steps include: Observations Question Research Hypothesis Setting up Experiment Gathering Data Analyzing Data Conclusion

Making Observations

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Observational studies allow scientists to describe a phenomenon.

Posing a Question

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Experiments are designed to answer questions or solve problems that you observe with your senses

The questions must be about the natural world and you have to be able to answer it scientifically

E.g. You wonder why your flowers are dying. Pose in question form: Why are my

flowers dying?

Making a Hypothesis

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A Hypothesis is a logical prediction about the outcome of an experiment

Based on a set of observations and previous knowledge or experience

You may want to do some research before making a hypothesis

must be testable through observations

If…then…because statement E.g. If I move my flowers in

direct sunlight, then my flowers will stay alive longer because they use the sunlight in photosynthesis.

Planning the Experiment

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Procedures describe what you plan to do to test your hypothesis in a step-by-step way

Begin by identifying the: Manipulated variable

(independent)- the factor you will purposely change

Responding variable (dependent)- the factor you predict will change as a result of the manipulated variable

Planning the Experiment

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Identify a list of materials needed Identify control variables

What are the other variables that might affect the outcome of your experiment?

E.g. time, type of materials, amount of materials, temperature, etc.

Writing operational definitions: Define key terms for clear meaning This allows others to repeat and test

your experiment E.g. “staying alive longer” will be

defined as living past 4 days.

Collecting Data

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Observe using one or more of the senses

Quantitative observations involves numbers E.g. There are 15 deer per acre

Qualitative observations involve some judgment or interpretation E.g. The bear was brown in color

Information gathered in this way is called evidence or data

Analyzing the Data

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Interpret the data by Make tables, graphs, and charts Look for trends and patterns

Make one or more inferences from your data and then compare it with what you already know.

E.g. If flowers in both groups (control and manipulated) stayed alive for 4 days, then they both lived longer for the same length of time.

Inferences vs. Observations Observation: “the grass on the school’s front

lawn is wet.” Possible inferences:

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Inferences vs. Observations Observation: “The school’s fire alarm is going

off.” Possible inferences:

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Making Conclusions

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In science this means: making a statement that summarizes what you have learned from your experiment

Revisit your original problem. Try to answer it.

Compare your interpretations with your hypothesis.

Was your hypothesis proven or disproven?

Provide support for your conclusion by explaining high and low data points.

Were their errors or mistakes? Explain.

How can you improve this experiment?

Observation Lab Activity

1. Title your provided data table

2. Read both sheets at the station (start with

sheet with picture)

3. Follow directions & record data in provided

data table

4. Answer the question beneath data table in

notebook

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Scientific Method http://my.hrw.com/hssc_2012/hmd_na_bio/

nsmedia/visualconcepts/80002.htm

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