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Conclusion Questions1. Which characteristics of life were found in the
living things?
2. How can you tell if something is non-living based on the life characteristics?
3. What was difficult about this lab?
4. Remember Marty the Martian? Write a paragraph in which you explain why Marty thought that a car was a living thing. Then explain why the car is nonliving using many specific characteristics of life as reasons.
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BELLRINGER 8.27.2013
1. Give an example of a COMPLETE SENTENCE.
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BellRinger 9.5.20131. Describe what an apple looks like.
2. Observe the following picture and describe it.
3. Observe the following picture and describe it.
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BellRinger 9.5.2013ZOMBIE APOCALYPSE!
1. How could you design an experiment to test the best way to avoid zombies?
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BellRinger 9.6.20131.
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III. The Scientific Method
Scientific Method: steps that scientists use to gather information and answer questions.
1. Question/Observation/Problem: noticing something that nobody has noticed before
“People trip a lot at Central.”
2. Hypothesis: an explanation for a question or an educated guess.
“If students walk on our wood floors, then they will stumble more often than on other surfaces.”
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3. Experiment: an investigation that tests a hypothesis by collecting information under controlled conditions“Today, I will count how many people stumble on the wood floors each passing period.”
a. Control: the group in which all conditions are kept the same“Tomorrow, I will count again at the same time, but in the basement where the floors are concrete.”
b. Independent variable: condition that is changed
The surface that students are walking on (the cause).
c. Dependent variable: condition that changes due to the independent variable.
Whether or not people trip (the effect).
d. Data: information collected from the experiment
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Scientific Method Cont.4. Conclusion: reporting of experimental data
5. Theory: a hypothesis supported by a large body of evidence
“I did the experiment every day for a month and the results were always similar. I believe the wood floors here make us TRIP.”
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BellRinger 9.6.2013Me’Shell predicted that vitamin water would help zombies get stronger. She kept two zombies; one got regular water and one got vitamin water.
1. What is the control?
2. What is the Independent variable?
3. What is the dependent variable?
Zombie w/regular water
Vitamin water
Zombie strength
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Bellringer 8/25/101. List the steps of the scientific method in
order.
2. Describe the difference between an independent variable and a dependent variable.
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Writing a Lab Report1. Title: What is the experiment about
2. Purpose: WHY is the experiment being performed?
3. Hypothesis: predict the outcome; educated guess.
4. Materials: what was used in the experiment
5. Procedure: “Recipe Style” directions of how to perform the experiment.
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Writing a lab report (CONT.)
6. Organize Data: report quantitative and qualitative data
7. Conclusion: brief summary of the data and an explanation of whether the data supports the hypothesis.
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Bellringer 8/27/101. In the heart rate experiment what data did
you collect?
2. In the toothpick tower experiment what data did you collect?
3. Why is data collection important when performing an experiment
Heart rate or bmp
Height of the tower
Helps to form a conclusion and show evidence
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IV. Types of Information1. Quantitative Data: numerical or
measurable data, usually expressed in graphs or tables
SI Units: universal-measuring units used to report quantitative data
a. Meters= length
b. Gram= mass or weight
c. Liter= volume
d. Second= time
e. Celsius degree= temperature
2. Qualitative Data: written descriptions of what scientist observe
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Graphing review1. Where is the X-axis?
2. Where is the Y-axis?
3. What is a line graph?
4. What is a bar graph?
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Bellringer 8/31/091. What is quantitative data?
2. What is qualitative data?
3. Why are SI units used in collecting scientific data
Numerical data ex. 20 cm
Descriptive words ex. Purple, soft
SI units are universally understood around the world
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V.Rules of Graphing Scientific Data
1. Title the graph: Tree species VS height
2. Label the axis:
• X-axis is the horizontal axis
Contains information related to the independent variable, example tree species
• Y-axis is the vertical axis
Always contains numbers , example tree height
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Tree Species VS Height
Height
Tree Species
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Rules of Graphing Scientific Data (CONT).
3. Number the axis: first look at the data table and round the largest number to the nearest 10th place
50 m
4. Count the number of boxes
on the graph paper for that
axis
10 boxes
5. Divide the number in step 3 by the number in step 4 to get the value for each box on the graph paper
50 ÷ 10 = 5 m
Trees height
Elm 48 m
Maple 35 m
Cherry 6 m
Box Elder
4 mData Table
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Tree Species VS Height
Height
Tree Species
10
Elm Maple Cherry Box Elder
5
0
15
20
25
30
35
40
45
50
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Tree Species VS Height
Height
Tree Species
10
Elm Maple Cherry Box Elder
5
0
15
20
25
30
35
40
45
50
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M & M Graphs1. Create a data chart like the following
2. Create a single bar graph that expresses the # of plain M & M’s of each color. Use colored pencils to express each, label axis, and title the graph.
Color # of plain # of peanut Total
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Bellringer 9/1/091. When is graphing useful in science?
2. Sketch a graph and label the following
a. X-axis
b. Y-axis
3. Why is it important to label the x and y axis correctly?
Y-axis
X-axis
For organizing and interpreting numerical data
So you know what the graphing showing
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M&M graphing1. Create a double bar graph depicting plain
and total M&M’s by color.
2. Create a single line graph depicting peanut M&M’s by color.
3. Create a double line graph depicting peanut and plain M&M’s by color.
Don’t forget to label axis’s, title, include a key (double’s only).
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Bellringer 9/1/091. What would be a
good title for this graph?
2. Which class has the most students?
3. Which class has the least students?
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Interpreting graphs a) What length of
worm is most common? _____________
b) What was the longest worm found?
_____________
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Interpreting graphsc) How many worms
were 6 cm long?
____________
d) How many worms were 7.25 cm long?
____________
e) The peak of the curve represents the
[ longest worms / average worms ]
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Assignment Choose two data tables and graph them.
Label axis
Title the graph
Then write three sentences to interpret the data shown. Look for trends
Look for specific information
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9/3/091. What are the steps of the scientific method?
2. What are the steps for writing a lab report?
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Bellringer 9/4/091. What is an Isopod?
2. What does an Isopod eat?
3. Where does an Isopod live?
4. Describe the Isopods impact on the Ecosystem?
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Bellringer 9/8/091. Numerical or measurable data is an example
of ____________data .
a. Quantitative b. Qualitative
2. The information collected from experiments is called ________.
a. the conclusion b. The data
3. A hypothesis supported by a large body of evidence refers to a(n) ______
a. Experiment b. Theory
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Bellringer 9/9/091. Define Biology.
2. The steps commonly used by scientists to gather information and test a hypothesis is the ________
a. Research b. scientific method
3. Experiments that produce written description contain _________ data.
a. qualitative b. quantitative
4. What are SI units?
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What to study for the test
Highlighted words in your notebooks
Characteristics of Life
Scientific Method Experimenting terms (control, independent)
Data terms (quantitative, qualitative, SI units)
How to write a lab report
Graphing
Look over Bellringer questions
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9/11/081. How do pill bugs breathe?
a. Lungs b. Gills c. Trachea
2. In a lab report the ______ answers the question, Why is the experiment being preformed
a. Purpose/problem b. conclusion
3. What was the independent variable in your pill bug lab yesterday?
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Writing a Lab Report1. Title: what is the experiment about
2. Purpose: Answers the question, WHY is the experiment being performed
3. Hypothesis: predict the outcome; educated guess
4. Materials: what things were used in the experiment
5. Procedure: “Recipe Style” directions of how to perform the experiment