topics cer graphing x, y axes intervals labels experiments variables controlled/constants...
TRANSCRIPT
![Page 1: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/1.jpg)
Topics
• CER• Graphing
• X, Y axes• Intervals labels
• Experiments• Variables
• Controlled/constants• Independent/dependent
• Control groups vs ex. Grps• Qualitative vs quantitative data (bio)
Test TomorrowPS ISN due (labs)PS read ch 2BIO read ch 6
• Hypothesis• Null hypothesis (bio)
• Observations/inferences (bio)• Microscopy (bio lab)• SI Units
• Metric conversions• 8 characteristics of life (bio)
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Unit 1 Review
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Characteristics of Life
• It breathes. Is that one of the characteristics of life?
Does wine breathe? Do fungi breathe?
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Characteristics of Life
• It breathes. Is that one of the characteristics of life? NO
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Characteristics of Life
• Name four characteristics of living things.
1. Made of cells2. Reproduces3. Grows and develops4. Displays organization5. Adapts and evolves6. Responds to stimuli7. Maintains homeostasis8. Requires energy
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CER Model: Claims
• State a valid hypothesis
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CER Model: Claims• State a valid hypothesis: As rainfall increases the number of
zebra babies born will increase
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CER Model: Experimentation
• Identify the dependent variable
![Page 9: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/9.jpg)
CER Model: Experimentation
• Identify the dependent variable: zebra babies born
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CER Model: Experimentation
• Identify a controlled variable
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CER Model: Experimentation
• Identify a controlled variable: time of year (spring)
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CER Model: Experimentation
• What is the label that would go on the Y axis?
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CER Model: Experimentation
• What is the label that would go on the Y axis? Zebra babies born
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CER Model: Claims
• State a valid hypothesis
![Page 15: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/15.jpg)
CER Model: Claims• State a valid hypothesis: If the amount of nitrogen is
increased, then corn production will increase (the amount of corn produced will increase)
![Page 16: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/16.jpg)
CER Model: Evidence
• Identify the independent variable
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CER Model: Evidence
• Identify the independent variable: amt of nitrogen
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CER Model: Evidence
• Identify a controlled variable.
![Page 19: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/19.jpg)
CER Model: Evidence
• Identify a controlled variable: type of soil, amount of sunlight
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CER Model: Evidence
• What goes on the X and Y axes?
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CER Model: Evidence
• What goes on the X and Y axes? X= amt nitrogen, y = amt corn produced
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CER Model: Experimentation
![Page 23: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/23.jpg)
CER Model: Experimentation
Meter stick
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CER Model: Experimentation
• Identify what will go on the Y axis when the data is graphed?
![Page 25: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/25.jpg)
CER Model: Experimentation
• Identify what will go on the Y axis when the data is graphed? Height of the plants
![Page 26: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/26.jpg)
CER Model: Experimentation
• Is this data qualitative or quantitative?
![Page 27: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/27.jpg)
CER Model: Experimentation
• Is this data qualitative or quantitative? quantitative
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Scientific Method
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Scientific Method
H
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Scientific Method
• To be a better experiment, Jose needs a control group. A good control group for this experiment which is looking at the activity of an enzyme involved in the human digestive system would be a test tube with egg and pepsin at what temperature?
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Scientific Method
• To be a better experiment, Jose needs a control group. A good control group for this experiment which is looking at the activity of an enzyme involved in the human digestive system would be a test tube with egg and pepsin at what temperature? A test tube at body temperature
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Scientific Method
• What is the null hypothesis for this experiment?
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Scientific Method
• What is the null hypothesis for this experiment? There will be no effect of temperature change on enzyme activity. (If I change the temperature, then there is no effect on enzyme activity)
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CER Model: Experimentation
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
Which should Anita measure to get the most useful results?
A growth of 100 soaked seeds at a given temperatureB growth of 100 regular seeds at different temperaturesC growth of 50 soaked and 50 regular seeds at a given temperatureD growth of 50 soaked and 50 regular seeds at different temperatures
![Page 35: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/35.jpg)
CER Model: Experimentation
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
Which should Anita measure to get the most useful results?
A growth of 100 soaked seeds at a given temperatureB growth of 100 regular seeds at different temperaturesC growth of 50 soaked and 50 regular seeds at a given temperatureD growth of 50 soaked and 50 regular seeds at different temperatures
![Page 36: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/36.jpg)
CER Model: Experimentation
• Identify the dependent variable
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
![Page 37: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/37.jpg)
CER Model: Experimentation
• Identify the dependent variable: seed growth
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
![Page 38: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/38.jpg)
CER Model: Claim
• What is a possible hypothesis for her experiment?
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
![Page 39: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/39.jpg)
CER Model: Claim
• What is a possible hypothesis for her experiment? If the seeds are soaked in water then the sprouting process will occur faster
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
![Page 40: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/40.jpg)
CER Model: Claim
• What is the null hypothesis for her experiment?
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
![Page 41: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/41.jpg)
CER Model: Claim
• What is the null hypothesis for her experiment? If the seeds are soaked in water there will be NO affect on the sprouting process
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process.
![Page 42: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/42.jpg)
CER Model: Experimentation
• Identify the control group.
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process. She plants 50 seeds in soaked in water in Container 1 and 50 normal seeds in Container 2. She puts both pots in a window and fertilizes and waters both pots once a week.
![Page 43: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/43.jpg)
CER Model: Experimentation
• Identify the control group. Container 2.
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process. She plants 50 seeds in soaked in water in Container 1 and 50 normal seeds in Container 2. She puts both pots in a window and fertilizes and waters both pots once a week.
![Page 44: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/44.jpg)
CER Model: Experimentation
• What would be qualitative data?
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process. She plants 50 seeds in soaked in water in Container 1 and 50 normal seeds in Container 2. She puts both pots in a window and fertilizes and waters both pots once a week.
![Page 45: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/45.jpg)
CER Model: Experimentation
• What would be qualitative data? Color of sprouting leaves, shape of leaves etc.
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process. She plants 50 seeds in soaked in water in Container 1 and 50 normal seeds in Container 2. She puts both pots in a window and fertilizes and waters both pots once a week.
![Page 46: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/46.jpg)
Wei
ght (
g)
Time (days)
CER Model: Data analysis
• What’s wrong with this graph?
![Page 47: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/47.jpg)
Wei
ght (
g)
Time (days)
CER Model: Data analysis
• What’s wrong with this graph? The intervals on the X axis are not equal.
![Page 48: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/48.jpg)
CER Model: Experimentation
• Identify a controlled variable.
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process. She plants 50 seeds in soaked in water in Container 1 and 50 normal seeds in Container 2. She puts both pots in a window and fertilizes and waters both pots once a week.
![Page 49: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/49.jpg)
CER Model: Experimentation
• Identify a controlled variable. Amount of soil, amount of sunlight, amount of water added each week, amount of fertilizer etc.
Anita is studying the factors that affect seed growth. She wants to test whether soaking seeds in water affects the sprouting process. She plants 50 seeds in soaked in water in Container 1 and 50 normal seeds in Container 2. She puts both pots in a window and fertilizes and waters both pots once a week.
![Page 50: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/50.jpg)
CER Model: Experimentation
Which of these is the mostappropriate unit of measurementto determine the volume of anadult human’s stomach?
A meterB kilogramC literD kiloliter
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CER Model: Experimentation
Which of these is the mostappropriate unit of measurementto determine the volume of anadult human’s stomach?
A meterB kilogramC literD kiloliter
![Page 52: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/52.jpg)
CER Model: Experimentation
• Which is larger? 0.005 Liters or 5 milliliters?
![Page 53: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/53.jpg)
CER Model: Experimentation
• Which is larger? 0.005 Liters or 5 milliliters?They are equal
![Page 54: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/54.jpg)
CER Model
Two species of mice live in the same geographical region, but Species 1 prefers open fields, whereas Species 2 lives in forests. An experiment was conducted in which laboratory born mice of each species were presented with simulated 'fields' and 'forests,‘ to determine if they would prefer the environment in which they normally lived.
Identify the hypothesis (claim):
![Page 55: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/55.jpg)
CER Model
Two species of mice live in the same geographical region, but Species 1 prefers open fields, whereas Species 2 lives in forests. An experiment was conducted in which laboratory born mice of each species were presented with simulated 'fields' and 'forests,‘ to determine if they would prefer the environment in which they normally lived.
Identify the hypothesis (claim): If mice are raised in a laboratory, they will still prefer the habitat most similar to the one that their species is from (originated).
![Page 56: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/56.jpg)
CER Model
Two species of mice live in the same geographical region, but Species 1 prefers open fields, whereas Species 2 lives in forests. An experiment was conducted in which laboratory born mice of each species were presented with simulated 'fields' and 'forests,‘ to determine if they would prefer the environment in which they normally lived. The experiment found that the lab mice preferred the same habitats that their original species did.
Use CER to create an explanation. (Claim, evidence and reasoning).
![Page 57: Topics CER Graphing X, Y axes Intervals labels Experiments Variables Controlled/constants Independent/dependent Control groups vs ex. Grps Qualitative](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bf901a28abf838c8de17/html5/thumbnails/57.jpg)
CER Model
Two species of mice live in the same geographical region, but Species 1 prefers open fields, whereas Species 2 lives in forests. An experiment was conducted in which laboratory born mice of each species were presented with simulated 'fields' and 'forests,‘ to determine if they would prefer the environment in which they normally lived. The experiment found that the lab mice preferred the same habitats that their original species did.
Use CER to create an explanation. (Claim, evidence and reasoning). Mice have a genetic predisposition to prefer a specific habitat type because when laboratory mice were tested, they preferred the habitat most similar to the one that their species was from.