Warm Up: What gas is required to keep a candle burning? How do you know?
Vocabulary :
1. Indicators – are chemicals that change their appearance in different types of solutions
2. Oxygen – gas that is breathed in and is absorbed by the body
3. Carbon Dioxide – gas that is breathed in and released by organs and muscles in the body and then is exhaled out of the body
4. Respiratory system – all the organs and tissues involved in respiration, including the nose, larynx, trachea, bronchi, lunges
5. Lung – two sponge like breathing organs in the chest
Hypothesis: What do you think will happen to the indicator when you breathe into the indicator?Why? (skip 2 lines)
Data Table: (skip half of a page)
Analysis/Conclusion:
1. What was the purpose of the solution in Cup A?(skip 2 lines)
2.a. Which of the solutions in Part One contained carbon dioxide? Support your answer with evidence form your experimental results. (skip 3 lines)
2.b. What does this tell you about the exhaled breath of human beings?(skip 3 lines)
Thursday, November 19, 2009
Monday, November 16, 2009
Lab 15: Digestion- An Absorbing Tale
Warm Up: How does your digestive system work?
Vocabulary:
1. absorption – the collection of a substance onto the surface of an absorbent solid
2. cross-section – a section formed by cutting through an object
3. nutrient – is a chemical that an organism needs to live and grow
4. tissue – a group of cells that perform a similar function
5. chemical breakdown – is when particles of food are broken down by chemicals
6. mechanical breakdown – is when food is physically broken into smaller pieces
7. digestion – is the mechanical and chemical breakdown of food into smaller pieces
8. function – an objects job or role
9. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
10. toxins – a poison produced by bacteria and by plants
Data:
STT1
a.
b.
STT2
a.
b.
STT3
STT4
Analysis/Conclusion:
1. What are some of the functions of the digestive system?
2. Copy the table below. Then fill in the table by placing an “X” to indicate the functions of each organ. The first row has been done for you.
3. Imagine taking a bite of a burrito. Follow the beans in the burrito through the process of digestion. Explain what types of changes take place and where each change happens.
4. Most substances are absorbed in the small intestine and not in the stomach. Aspirin is a common exceptions; it is absorbed in the stomach. Some alcohol is absorbed in the stomach, but most is absorbed in the intestine.
a. Why would you want medicines, like aspirin, to be absorbed in the stomach instead of the small intestine?
b. What is the effect of some alcohol being absorbed in the stomach?
5. Take a closer look at the villi of the small intestine (figure 2b). How do the villi help nutrients move into the blood quickly? (Hint: What would happen if there were no villi, only a smooth surface?
Vocabulary:
1. absorption – the collection of a substance onto the surface of an absorbent solid
2. cross-section – a section formed by cutting through an object
3. nutrient – is a chemical that an organism needs to live and grow
4. tissue – a group of cells that perform a similar function
5. chemical breakdown – is when particles of food are broken down by chemicals
6. mechanical breakdown – is when food is physically broken into smaller pieces
7. digestion – is the mechanical and chemical breakdown of food into smaller pieces
8. function – an objects job or role
9. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
10. toxins – a poison produced by bacteria and by plants
Data:
STT1
a.
b.
STT2
a.
b.
STT3
STT4
Analysis/Conclusion:
1. What are some of the functions of the digestive system?
2. Copy the table below. Then fill in the table by placing an “X” to indicate the functions of each organ. The first row has been done for you.
3. Imagine taking a bite of a burrito. Follow the beans in the burrito through the process of digestion. Explain what types of changes take place and where each change happens.
4. Most substances are absorbed in the small intestine and not in the stomach. Aspirin is a common exceptions; it is absorbed in the stomach. Some alcohol is absorbed in the stomach, but most is absorbed in the intestine.
a. Why would you want medicines, like aspirin, to be absorbed in the stomach instead of the small intestine?
b. What is the effect of some alcohol being absorbed in the stomach?
5. Take a closer look at the villi of the small intestine (figure 2b). How do the villi help nutrients move into the blood quickly? (Hint: What would happen if there were no villi, only a smooth surface?
Lab 14: Breakdown
Warm Up: Why do you think it is important to chew your food?
Vocabulary :
1. chemical breakdown – is when particles of food are broken down by chemicals
2. digestion – is the mechanical and chemical breakdown of food into smaller pieces
3. function – an object’s job or role
4. mechanical breakdown – is when food is physically broken into smaller pieces
5. model – a smaller or larger version of an object that is too small or too big to observe in a classroom
6. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
7. surface area – the total area of the exposed surface of an object
Hypothesis: (Which tablet do you think will dissolve quicker a whole, broken in half, broken in fourths, or crushed? Why?)
Data: class created leave ½ page blank
Analysis Questions:
2.a. What part of digestion was modeled by breaking the tablet?
2.b.What part of digestion was modeled by adding vinegar?
3. How does the size of your food affect the speed at which chemical breakdown occurs? Explain how your conclusions are based on the data collected during your experiment, and whether your hypothesis was supported or disproved.
4. Were your conclusion based on qualitative or quantitative data? Explain.
5. Besides preventing choking, why is it important to chew your food?
Vocabulary :
1. chemical breakdown – is when particles of food are broken down by chemicals
2. digestion – is the mechanical and chemical breakdown of food into smaller pieces
3. function – an object’s job or role
4. mechanical breakdown – is when food is physically broken into smaller pieces
5. model – a smaller or larger version of an object that is too small or too big to observe in a classroom
6. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
7. surface area – the total area of the exposed surface of an object
Hypothesis: (Which tablet do you think will dissolve quicker a whole, broken in half, broken in fourths, or crushed? Why?)
Data: class created leave ½ page blank
Analysis Questions:
2.a. What part of digestion was modeled by breaking the tablet?
2.b.What part of digestion was modeled by adding vinegar?
3. How does the size of your food affect the speed at which chemical breakdown occurs? Explain how your conclusions are based on the data collected during your experiment, and whether your hypothesis was supported or disproved.
4. Were your conclusion based on qualitative or quantitative data? Explain.
5. Besides preventing choking, why is it important to chew your food?
Monday, November 2, 2009
Lab 13: Living with Your Liver
Warm Up: Where is your liver? What does the liver do?
Vocabulary :
1. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
2. regulation/ regulate – to control according to a rule
3. human body systems – Cardiovascular, circulatory, respiratory, muscular, skeletal, nervous, endocrine, digestive, excretory, reproductive, and lymphatic.
4. toxin – a poison produced by bacteria and by plants
Notes: (skip ½ a page for notes)
Analysis Questions:
1. What are some of the functions of the liver?
2. People who have cirrhosis of the liver are usually on a strict diet. They have to be careful of what they eat and drink. Why do you think this is?
3. How can understanding how your body works help you make decisions about your health?
Vocabulary :
1. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
2. regulation/ regulate – to control according to a rule
3. human body systems – Cardiovascular, circulatory, respiratory, muscular, skeletal, nervous, endocrine, digestive, excretory, reproductive, and lymphatic.
4. toxin – a poison produced by bacteria and by plants
Notes: (skip ½ a page for notes)
Analysis Questions:
1. What are some of the functions of the liver?
2. People who have cirrhosis of the liver are usually on a strict diet. They have to be careful of what they eat and drink. Why do you think this is?
3. How can understanding how your body works help you make decisions about your health?
Lab 12: What's happening inside?
Warm Up: Name all of the different body systems that you can think of. Next to each system state what you think the system does for the body.
Vocabulary :
1. function – an objects job or role
2. human body systems – Cardiovascular, circulatory, respiratory, muscular, skeletal, nervous, endocrine, digestive, excretory, reproductive, and lymphatic.
3. model – a smaller or larger version of an object that is too small or too big to observe in a classroom
4. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
5. structure – what an object is made of and how the object is shaped
Part One: you need a piece of white construction paper and color pencils
Part Two : you need clay, a plastic body torso, and a piece of plastic wrap
Data: Functions of Human Body Systems (leave 2 pages blank for the papers to be glued in)
Analysis Questions:
1.The liver is the largest internal organ of the human body. Was the liver the largest organ in your model? Do you think that the other organs you modeled were accurate in size? Why or why not?
2.Was the model that you created in Part Two a good model of the human body? Why or why not?
3.Prepare a table with headings as shown below. Fill in the first column with the organs or structures listed in Table 1.
a.In the second column of your table, identify the system that matches each organ or structure. For Example, the stomach is part of the digestive system.
b.In the third column of your table, identify the function of each of the systems you mentioned in 3a.
4.What new things have you learned about the human body in this activity?
Vocabulary :
1. function – an objects job or role
2. human body systems – Cardiovascular, circulatory, respiratory, muscular, skeletal, nervous, endocrine, digestive, excretory, reproductive, and lymphatic.
3. model – a smaller or larger version of an object that is too small or too big to observe in a classroom
4. organ – a part of the body made of two or more types of tissue that performs a vital or natural function or job
5. structure – what an object is made of and how the object is shaped
Part One: you need a piece of white construction paper and color pencils
Part Two : you need clay, a plastic body torso, and a piece of plastic wrap
Data: Functions of Human Body Systems (leave 2 pages blank for the papers to be glued in)
Analysis Questions:
1.The liver is the largest internal organ of the human body. Was the liver the largest organ in your model? Do you think that the other organs you modeled were accurate in size? Why or why not?
2.Was the model that you created in Part Two a good model of the human body? Why or why not?
3.Prepare a table with headings as shown below. Fill in the first column with the organs or structures listed in Table 1.
a.In the second column of your table, identify the system that matches each organ or structure. For Example, the stomach is part of the digestive system.
b.In the third column of your table, identify the function of each of the systems you mentioned in 3a.
4.What new things have you learned about the human body in this activity?
Lab 11: Sick Day
Warm Up: Have you ever taken an over the counter medication before? Have you ever had a side effect from that medication? What was the side effect? Do you read the labels of over the counter medications? Why or why not?
Vocabulary:
1. evidence – pieces of information gathered in an experiment
2. placebo – a control that simulates a medicine but does not have the active ingredient in it
3. qualitative data – properties or characteristics that are used to identify things
4. quantitative data – values that have been measured or counted
5. trade-offs – is something given up in selecting one alternative over another
Data: Notes on Medicine (skip a page for this)
Analysis/Conclusion:
1. What kinds of information are provided on the labels?
2. Sam decided to make a decision based on the information he has. Think about all of the options available to Sam. He could:
a. Drink liquids and wait until he feels better.
b. Drink liquids and take one of the medicines
c.Drink liquids and take a combination of the medicines
If you were Sam, what would you do? Assume that Sam’s medical history is the same as our own. Support your answer with evidence and identify the trade-offs of your decision. (hint: to write a complete answer, first state your opinion. Provide two or more pieces of evidence that support your opinion. Then consider all sides of the issue and identify the trade-offs of our decision.)
3.Explain whether you used more qualitative or quantitative evidence to make your decision. Support your answer with examples.
4.What are the trade-offs of taking a medicine when you feel sick?
Vocabulary:
1. evidence – pieces of information gathered in an experiment
2. placebo – a control that simulates a medicine but does not have the active ingredient in it
3. qualitative data – properties or characteristics that are used to identify things
4. quantitative data – values that have been measured or counted
5. trade-offs – is something given up in selecting one alternative over another
Data: Notes on Medicine (skip a page for this)
Analysis/Conclusion:
1. What kinds of information are provided on the labels?
2. Sam decided to make a decision based on the information he has. Think about all of the options available to Sam. He could:
a. Drink liquids and wait until he feels better.
b. Drink liquids and take one of the medicines
c.Drink liquids and take a combination of the medicines
If you were Sam, what would you do? Assume that Sam’s medical history is the same as our own. Support your answer with evidence and identify the trade-offs of your decision. (hint: to write a complete answer, first state your opinion. Provide two or more pieces of evidence that support your opinion. Then consider all sides of the issue and identify the trade-offs of our decision.)
3.Explain whether you used more qualitative or quantitative evidence to make your decision. Support your answer with examples.
4.What are the trade-offs of taking a medicine when you feel sick?
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