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LAB SAFETY AND SCIENTIFIC METHOD!! Flashcards | StudBud
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LAB SAFETY AND SCIENTIFIC METHOD!!
LAB SAFETY AND SCIENTIFIC METHOD!!
25 terms
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StudBud Administration
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Scientific Method, variables
Flashcards
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Questions
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Answers
1
Which step of the scientific method would you create data tables, graphs, and charts?
Form a hypothesis
Ask a question
Communicate results
Analyze data/results
2
What is the independent variable?
sunflower plants
pure water
concentration of salt solution
the height
3
An experiment where only one variable is tested at a time, used to test a hypothesis
controlled experiement
variable
theory
scientific method
4
What is the dependent variable? (Hint: its the effect, what you're measuring)
Plants
plant growth
rising soil temperatures
Plant type
5
Instead of putting your nose directly into a test tube to smell a substance, you should _______ instead.
wall
waft
walk
wave
6
A student wore a baggy jacket with long sleeves while using fire in the lab. Is this safe or unsafe?
Safe
Not sure
Other
Unsafe
7
An "If, then" statement is a:
Hypothesis
dependent
Observation
variable
8
What is the dependent variable? The more water you put on grass, the taller it will grow.
the grass
the height of the grass
adding water
the decrease of water
9
What is the dependent variable?
pure water
The height of the sunflowers
sunflower plants
The different salt concentrations
10
Wear closed-toed ____ when performing experiments
shorts
shoes
shirts
books
11
The student put on her goggles before using the lab chemicals. Is this safe or unsafe?
Not sure
Safe
Unsafe
other
12
Which of the following is NOT an observation?
The plant likes to be in the sun.
The soil is brown in color.
The plant has green leaves.
The flowers smell sweet.
13
The variable that is purposely changed within an experiment is a/an:
Hypothesis
Dependent Variable
Independent Variable
Observation
14
In a controlled experiment, only one ________ can be tested at a time, to ensure the accuracy of the results.
Hypothesis
Idea
Control
Variable
15
What type of observation is the following statement?
There are 6 dogs and 13 cats in the pet shop.
Inference
Qualitative
Independent
Quantitative
16
A series of steps used to answer questions and solve problems is:
Observation
Conclusion
Scientific method
Independent Variable
17
What is the independent variable? The more water you put on grass, the taller it will grow.
adding water
the height
growth
the grass
18
The group that remains the same, nothing is changed
Data collecting group
dependent variable
Control Group
Independent variable
19
What is the Independent variable? (Hint: what is intentionally being changed?)
plant growth
soil
plants
rising soil temperatures
20
What is the control group? (what would normally be done)
The three plants that receive salt
The fourth plant
the sunflower plants
The height of the plants
21
The factor that is affected by the independent variable is:
Observation
Hypothesis
Dependent variable
Control
22
What step of the scientific method comes after "Test the Hypothesis"?
Accept or Reject the Hypothesis
Communicate Results
Ask a Question
Analyze Data/Results
23
Which of the following is NOT a lab safety rule?
If glass breaks, wait untill the end of the period to clean it up.
Never taste anything in the lab.
No horseplay, running, pushing, or fooling around in the lab.
Long hair should be tied up.
24
True or False:
You should always use the fire blanket when a person is on fire.
True
False
25
The emergency safety shower is used to...
Rinse chemicals off of your body
Put out fires on people
Protect your eyes
Wash your hair
