Lab Safety
There is an unlabeled beaker filled with clear liquid on your table. What should you do?
List the key word for qualitative and two examples of qualitative observation:
keyword = quality
examples: pink cow, large dog, stinky shoes
Which property is the least reliable to identify minerals and rocks?
Color
Name a minimum of three geological processes that make and destroy rock.
Weathering, erosion, deposition, heat, and pressure
A pharmaceutical company wanted to test a new drug developed to minimize the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom were suffering the effects of a cold. 25 of the people received the new drug, while the other 25 received a placebo (a sugar pill). All participants received a pill at 8:00 a.m. daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The effectiveness of the drug was determined by the number of tissues each person used within a 24 hour period - less tissues imply improved symptoms. At the end of a 7-day period, all participants used the same amount of tissues.
What is the question?
How can cold symptoms be minimized?
What safety equipment should a student have used to avoid the injury to eyes?
Safety Goggles
Which of the following is NOT part of scientific methods?
Ask a question
Test the hypothesis
Analyze results
Close the case
Close the case
The ____________________ of a rock is determined by the sizes, shapes, and positions of the minerals the rock contains.
Stratification
Extrusive igneous rock
Foliated
Texture
Texture
The most characteristic property of sedimentary rock is ______________.
Stratification
Extrusive igneous rock
Foliated
Texture
Stratification
If a rock is buried deep inside the Earth, which geological processes cannot change the rock?
weathering because it is not exposed to atmosphere
What safety device should be used if debris or chemicals get into a student’s eyes?
Eye Wash Station
List the key word for quantitative and two examples of quantitative observation:
keyword = quantity
examples: 34 cm tall, 120 kg, 20 children
Which property of minerals does Mohs scale measure?
Hardness
Igneous rock forms when: (choose one)
Minerals crystallize from a solution.
Sand grains are cemented together.
Magma cools and solidifies.
Mineral grains in a rock recrystallize.
magma cools and solidifies.
A pharmaceutical company wanted to test a new drug developed to minimize the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom were suffering the effects of a cold. 25 of the people received the new drug, while the other 25 received a placebo (a sugar pill). All participants received a pill at 8:00 a.m. daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The effectiveness of the drug was determined by the number of tissues each person used within a 24 hour period - less tissues imply improved symptoms. At the end of a 7-day period, all participants used the same amount of tissues.
What are three constants?
same climate
same diet
same level of activity
You accidentally knock an entire beaker of acid onto your lab partner’s pants. What item should be used to help your lab partner?
Safety Shower
A pharmaceutical company wanted to test a new drug developed to minimize the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom were suffering the effects of a cold. 25 of the people received the new drug, while the other 25 received a placebo (a sugar pill). All participants received a pill at 8:00 a.m. daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The effectiveness of the drug was determined by the number of tissues each person used within a 24 hour period - less tissues imply improved symptoms. At the end of a 7-day period, all participants used the same amount of tissues.
What is the dependent variable?
number of tissues used (improvement of cold symptoms)
Which of the following minerals is an example of a gemstone?
Mica
Diamond
Gypsum
Copper
Diamond
An igneous rock that cools very slowly has a ______________ texture.
Foliated
Fine-grained
Nonfoliated
Coarse-grained
Coarse-grained
You find gold colored rocks. List three identification tests AND how you would use these tests to help determine in the nuggets are real gold.
Hardness
Streak
Luster
(Melting Point, etc.)
What are three things/activities that should not be in a lab?
horseplay
food
drink
candy
bad behavior
A pharmaceutical company wanted to test a new drug developed to minimize the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom were suffering the effects of a cold. 25 of the people received the new drug, while the other 25 received a placebo (a sugar pill). All participants received a pill at 8:00 a.m. daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The effectiveness of the drug was determined by the number of tissues each person used within a 24 hour period - less tissues imply improved symptoms. At the end of a 7-day period, all participants used the same amount of tissues.
What is the independent variable?
new drug
The process by which land used for mining is returned to its original state is called?
Reclamation
__________________ form plains called lava plateaus.
Stratification
Extrusive igneous rock
Foliated
Texture
Extrusive igneous rock
A pharmaceutical company wanted to test a new drug developed to minimize the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom were suffering the effects of a cold. 25 of the people received the new drug, while the other 25 received a placebo (a sugar pill). All participants received a pill at 8:00 a.m. daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The effectiveness of the drug was determined by the number of tissues each person used within a 24 hour period - less tissues imply improved symptoms. At the end of a 7-day period, all participants used the same amount of tissues.
What is the hypothesis? (MUST use "If...then...because" format!)
IF the new drug is given to patients with a cold THEN the cold symptoms will improve BECAUSE the new drug is effective at fighting the cold virus.