What is the most important lab safety rule?
a. No Horseplaying
b. follow your teacher's directions
c. Be prepared
d. No eating or drinking in the lab
b. follow your teacher's directions
100
What is the first step of the scientific method?
a. Create an hypothesis
b. design an experiment
c. Pose a question
d. communicate your results
c. Pose a question
100
Graphs are often used to organize and interpret ____________ from the experiment.
a. questions
b. observations
c. data
d. conclusions
c. data
100
__________ is used when exact numbers cannot be used.
a. observations
b. predictions
c. solutions
d. estimations
d. estimations
100
The average of a set of data
a. Mean
b. Median
c. Mode
d. Range
a. Mean
200
Safety Goggle symbol is for...
a. Clothing Protection
b. Animal Safety
c. Clothing Protection
d. Eye Protection
d. Eye Protection
200
During what stage of the scientific method is data taken?
a. Design a experiment
b. Collect and interpret data
c. conclusion
d. Create hypothesis
b. Collect and interpret data
200
The middle number of a set data is the __________.
a. mean
b. median
c. mode
d. range
b. median
200
Brown, green leaves, tall, none moving, birds, and birds nest are all ___________ observations.
a. predictions
b. quantitative
c. qualitative
d. Inference
c. qualitative
200
20 inches, 40 minutes, 2 hours are all examples of ______ data.
a. estimation
b. qualitative
c. experimentation
d. quantitative
d. quantitative
300
True or False? Horseplaying is allowed in the lab?
False
300
When is a brief summary of the findings from an experiment given?
a. Conclusion
b. Design an experiment
c. Pose a question
d. Communicate results
a. Conclusion
300
Data that involves numbers.
a. qualitative data
b. observation data
c. quantitative data
d. prediction data
c. quantitative data
300
A forecast about the future.
a. Inference
b. prediction
c. solution
d. Observation
b. prediction
300
A factor that can change an experiment.
a. observations
b. estimation
c. variable
d. data
c. Variable
400
If an accident occurs in the lab, what is the first thing a student should do?
a. Fix what happen
b. continue working
c. stop and go tell a teacher
d. call 911
c. stop and go tell a teacher
400
A statement that is testable and an explanation for a scientific question.
a. Question
b. Law
c. hypothesis
d. Conclusion
c. hypothesis
400
The variable that is purposely changed by the scientist
a. Controlled variable
b. manipulated variable
c. responding variable
d. dependent variable
b. manipulated variable
400
The accepted value of a number or a measurement
a. Precise
b. Estimate
c. Accurate
d. Absolute Value
c. Accurate
400
Explaining things based on prior knowledge or evidence
a. inference
b. observation
c. prediction
d. hypothesis
a. inference
500
What four things does lab safety involve?
1. Knowing lab safety rules
2. Knowing what to do in case of an emergency
3. Being prepared for labs
4. Knowing how to use laboratory tools
500
To test a hypothesis a scientist must_________.
a. Pose a question
b. Collect data
c. Make an experiment
d. design an experiment
d. design an experiment
500
How many variables should be changed at a time?
a. 0
b. 1
c. 2
d. 3
b. 1
500
The variable that changes due to the manipulated variable.
a. the responding variable
b. The corresponding variable
c. The independent variable
d. the observation variable
a. the responding variable
500
Gathering information through seeing, hearing, touching, tasting, or smelling.
a. Accuracy
b. observing
c. inferring
d. predicting