1. The student will demonstrate an understanding of the nature of science
Objective 1
The student will demonstrate an understanding of the nature of science

2. Scientific Processes Biology and Integrated Physics and Chemistry
The student, for at least 40% of instructional time, conducts field and laboratory investigations using safe, environmentally appropriate and ethical practices. The student is expected to:
A) Demonstrate safe practices during field and laboratory investigations.

3. 1A Bio
C 10-04
A science class is conducting an experiment that produces noxious fumes. Because of inadequate ventilation, some students begin to feel nauseated and dizzy. The first response should be to ---
A neutralize the acid that is reacting to produce the noxious fumes
B carry the reactants outside, away from other students
C leave the room and go to an area with fresh air
D spray the reaction with a fire extinguisher

4. 1A Bio
C 10-04
A science class is conducting an experiment that produces noxious fumes. Because of inadequate ventilation, some students begin to feel nauseated and dizzy. The first response should be to ---
A neutralize the acid that is reacting to produce the noxious fumes
B carry the reactants outside, away from other students
C leave the room and go to an area with fresh air
D spray the reaction with a fire extinguisher

5. 31 January
Noxious fumes: Leave the room!

6. Chemical products can be measured and recorded as data
1A Bio
D 10-03
Laboratory equipment is cleaned and properly stored after use primarily so that ---
Chemical products can be measured and recorded as data
Time is saved in setting up the next experiment
Toxic materials can be kept in the laboratory
The possibility of contamination in the laboratory is minimized

7. Laboratory equipment is cleaned and properly stored after use primarily so that ---
Chemical products can be measured and recorded as data
Time is saved in setting up the next experiment
Toxic materials can be kept in the laboratory
The possibility of contamination in the laboratory is minimized

8. 7 February
Clean equipment to minimize contamination.

9. This picture indicates that the chemical represented is ---
1A Bio
B 11/05
This picture indicates that the chemical represented is ---
pressurized
corrosive
flammable
toxic

10. This picture indicates that the chemical represented is ---
1A Bio
B 11/05
This picture indicates that the chemical represented is ---
pressurized
corrosive
flammable
toxic

11. 8 February
Hand eaten away = corrosive chemical

12. Does water boil when exposed to air?
1A Bio
C 11/04
The diagram shows an experimental setup. Which of these questions was this experiment designed to answer?
Does water boil when exposed to air?
Will fire turn a gas into a liquid?
Does air expand when heated?
Will heat turn a gas into a solid?

13. Does water boil when exposed to air?
1A Bio
C 11/04
The diagram shows an experimental setup. Which of these questions was this experiment designed to answer?
Does water boil when exposed to air?
Will fire turn a gas into a liquid?
Does air expand when heated? (9 February)
Will heat turn a gas into a solid?

14. Reactions that produce toxic gases should be performed in a ---
Bio
A 11/04
Reactions that produce toxic gases should be performed in a ---
Laboratory fume hood
Beaker with a watch glass on top
Well-ventilated area of the lab
Warm, airtight drying oven

15. Reactions that produce toxic gases should be performed in a ---
Bio
A 11/04
Reactions that produce toxic gases should be performed in a ---
Laboratory fume hood
Beaker with a watch glass on top
Well-ventilated area of the lab
Warm, airtight drying oven

16. 10 February
Toxic gases? Use fume hood.

17. Have a fire extinguisher nearby
Powerful Plankton
The U.S. Naval Research Laboratory has created an experimental marine fuel cell that could produce enough electricity to power ocean-monitoring devices. This fuel cell runs on seawater and sediment, with the help of plankton. Some plankton on the surface of ocean sediments use dissolved oxygen to break down organic matter, releasing energy; this is an aerobic process. The plankton in the deeper sediments break down organic matter without using oxygen; this is an anaerobic process. These two processes create a difference in voltage between the surface of the sediment and the sediment farther down in the seabed, The voltage difference can be used to produce electricity – up to 5.0 x 10-2 watts of power. Energy supplied by this type of fuel cell can be obtained as long as there is organic matter in the sediment.
1A Bio
A 10-04
Which safety precaution should be observed while analyzing sediment from a marine aquarium?
Wear rubber gloves
Use a fume hood
Avoid using glassware
Have a fire extinguisher nearby

18. Have a fire extinguisher nearby
Powerful Plankton
The U.S. Naval Research Laboratory has created an experimental marine fuel cell that could produce enough electricity to power ocean-monitoring devices. This fuel cell runs on seawater and sediment, with the help of plankton. Some plankton on the surface of ocean sediments use dissolved oxygen to break down organic matter, releasing energy; this is an aerobic process. The plankton in the deeper sediments break down organic matter without using oxygen; this is an anaerobic process. These two processes create a difference in voltage between the surface of the sediment and the sediment farther down in the seabed, The voltage difference can be used to produce electricity – up to 5.0 x 10-2 watts of power. Energy supplied by this type of fuel cell can be obtained as long as there is organic matter in the sediment.
1A Bio
A 10-04
Which safety precaution should be observed while analyzing sediment from a marine aquarium?
Wear rubber gloves
Use a fume hood
Avoid using glassware
Have a fire extinguisher nearby

19. 11 February
Examining sediment? Wear gloves!

20. Avoid splashing chemicals into the face of any person
1A Bio
C 10-03
The reason for wafting or fanning a small amount of chemical vapors toward the nose as a means to detect odors in a test tube is to ---
Avoid experimental error from excessive loss of mass of reactants or products
Avoid splashing chemicals into the face of any person
Protect the respiratory tract against potentially harmful vapors
Determine the relative strength of the odor before smelling directly

21. Avoid splashing chemicals into the face of any person
1A Bio
C 10-03
The reason for wafting or fanning a small amount of chemical vapors toward the nose as a means to detect odors in a test tube is to ---
Avoid experimental error from excessive loss of mass of reactants or products
Avoid splashing chemicals into the face of any person
Protect the respiratory tract against potentially harmful vapors
Determine the relative strength of the odor before smelling directly

22. 14 February
Waft vapors to protect respiratory system.

23. Receptacle for broken glass Laboratory apron Squeeze bottle
1A Bio
D 10-04
An activity is designed that allows a student to observe the temperature changes in a cup of water. A piece of metal taken from a beaker of boiling water is placed in a cup containing water at room temperature. A glass alcohol thermometer is used to measure temperature changes.
A safety checklist for this activity should include the presence of a proper fire extinguisher and all of the following items except a ---
Fire blanket
Receptacle for broken glass
Laboratory apron
Squeeze bottle

24. Receptacle for broken glass Laboratory apron Squeeze bottle
1A Bio
D 10-04
An activity is designed that allows a student to observe the temperature changes in a cup of water. A piece of metal taken from a beaker of boiling water is placed in a cup containing water at room temperature. A glass alcohol thermometer is used to measure temperature changes.
A safety checklist for this activity should include the presence of a proper fire extinguisher and all of the following items except a ---
Fire blanket
Receptacle for broken glass
Laboratory apron
Squeeze bottle

25. 15 February
Don’t need squeeze bottle.

26. In which part of this process should safety precautions be planned?
1A Bio C 10/06
In which part of this process should safety precautions be planned? Q R S T

27. In which part of this process should safety precautions be planned?
1A Bio C 10/06
In which part of this process should safety precautions be planned? Q R S T

28. 16 February
Plan safety while designing experiment.

29. Potential Hazards of Petroleum, Naphtha, Hexane,
Toluene, and Acetone
1A Bio
D 10/04
May cause eye, skin, nose, and throat irritation. Inhaling or swallowing vapors may be harmful or fatal. Known to cause birth defects. Vapor may ignite explosively.
The ingredients described above are used to make a bonding agent. The most important safety precaution to take when applying this bonding agent is to ---
Dry it with a small flame
Work in a well-ventilated area
Cover the work area with newspaper
Wear a lab coat

30. Potential Hazards of Petroleum, Naphtha, Hexane,
Toluene, and Acetone
1A Bio
D 10/04
May cause eye, skin, nose, and throat irritation. Inhaling or swallowing vapors may be harmful or fatal. Known to cause birth defects. Vapor may ignite explosively.
The ingredients described above are used to make a bonding agent. The most important safety precaution to take when applying this bonding agent is to ---
Dry it with a small flame
Work in a well-ventilated area
Cover the work area with newspaper
Wear a lab coat

31. 17 February
Keep lab well-ventilated.

32. When performing this activity, students must remember to ---
1A Bio
B 11/05
Examining Owl Pellets
Obtain owl pellet and place in a dissecting tray
Carefully break open the owl pellet with forceps and dissecting needle
Remove fur and feathers from the bones
Group the recovered bones into mammal and bird skeletons
When performing this activity, students must remember to ---
Label the equipment used
Keep hands away from face and mouth
Sterilize the dissecting needle before use
Disinfect the fur and feathers removed from the pellet

33. When performing this activity, students must remember to ---
1A Bio
B 11/05
Examining Owl Pellets
Obtain owl pellet and place in a dissecting tray
Carefully break open the owl pellet with forceps and dissecting needle
Remove fur and feathers from the bones
Group the recovered bones into mammal and bird skeletons
When performing this activity, students must remember to ---
Label the equipment used
Keep hands away from face and mouth
Sterilize the dissecting needle before use
Disinfect the fur and feathers removed from the pellet

34. 18 February
Keep nasty stuff away from your face.

35. assist their lab partner
1A Bio
A 11/05
The anatomy of grasshoppers is being studied in a dissection lab. Working in groups of three, students make observations using a hand lens, forceps, and a scalpel. Two of the students in a group have finished their observations. These two students may do all of the following except ---
remove their goggles
review their notes
wash their hands
assist their lab partner

36. assist their lab partner
1A Bio
A 11/05
The anatomy of grasshoppers is being studied in a dissection lab. Working in groups of three, students make observations using a hand lens, forceps, and a scalpel. Two of the students in a group have finished their observations. These two students may do all of the following except ---
remove their goggles
review their notes
wash their hands
assist their lab partner

37. 22 February
Keep protective gear on until ALL equipment is cleaned up.

38. Heating water with an open flame
1A Bio
A 11/06
The label shown above contains information about some harmful effects of acetone. A group of students plans to use acetone to rinse out a glass container. A second group of students is working at the same lab table. Which of the following lab procedures should the second group of students avoid?
Heating water with an open flame
Pouring hydrochloric acid into a beaker
Filtering precipitates from a liquid solution
Collecting oxygen from plants in a test tube

39. Heating water with an open flame
1A Bio
A 11/06
The label shown above contains information about some harmful effects of acetone. A group of students plans to use acetone to rinse out a glass container. A second group of students is working at the same lab table. Which of the following lab procedures should the second group of students avoid?
Heating water with an open flame
Pouring hydrochloric acid into a beaker
Filtering precipitates from a liquid solution
Collecting oxygen from plants in a test tube

40. 23 February
No open flames around volatile fumes!

41. 1A Bio
C 11/04
Classification symbols for certain fire extinguishers are shown below. Which class of fire extinguisher should be used when a hot plate overheats and catches on fire? A C B D

42. 24 February: C. Use the right equipment for the job.
1A Bio
C 11/04
Classification symbols for certain fire extinguishers are shown below. Which class of fire extinguisher should be used when a hot plate overheats and catches on fire?
24 February: C. Use the right equipment for the job. A C B D

43. Putting on safety goggles Handling the beaker with tongs
1A Bio
D 11-04
All of these procedures must be followed when using the setup to the left except ---
Putting on safety goggles
Handling the beaker with tongs
Securing loose clothing
Wearing rubber gloves

44. Putting on safety goggles Handling the beaker with tongs
1A Bio
D 11-04
All of these procedures must be followed when using the setup to the left except ---
Putting on safety goggles
Handling the beaker with tongs
Securing loose clothing
Wearing rubber gloves

45. 25 February
Rubber gloves aren’t heat resistant; use proper equipment.