Types of Variables
What is the independent variable in an experiment?
the variable deliberately being changed
What are the 5 senses you use to make observations?
sight, taste, hearing, touch, smell
What is a primary goal of science?
To investigate and understand nature.
To explain events in nature.
To use explanations to make useful predictions.
When should you report accidents or injuries in the lab?
Immediately
What do you need to do when leaving the classroom?
Take the pass
What is the term for conditions that remain the same for both the experimental and control groups?
constants or controlled variables
Which of the following is NOT a type of data scientists collect?
A) Quantitative data
B) Qualitative data
C) Observational data
D) Opinional data
D) Opinional data
Which of the following best describes the scientific method?
A) A rigid set of rules for conducting experiments
B) A framework for investigating problems
C) A way to prove hypotheses correct
D) A system for organizing scientific laws
B) A framework for investigating problems
What should you do if you notice damaged equipment or unsafe conditions in the lab?
Tell the teacher
What should you do when you enter the class?
put phone in holder
start warm-up
In the following scientific question identify the DEPENDENT VARIABLE:
Does tomato juice make hair grow faster?
rate of hair grow
What type of data involves numbers and measurements?
quantitative data
Which statement about scientific laws is correct?
a) They are the same as scientific theories
b) They can never be revised or replaced
c) They are simple, true, universal, and absolute
d) They only apply to specific situations
c) They are simple, true, universal, and absolute
What is the correct action if a chemical splashes on your skin or in your eyes?
Rinse thoroughly with water for at least 15 minutes
What are THREE rules of the classroom?
No eating or drinking at lab stations
Put cellphones in holder
Follow all safety guidelines
Maintain a respectful environment
In a controlled experiment, what is the purpose of the control group?
To observe differences between the experimental groups
What is an example of qualitative data?
It's cold outside, the snake is large, the pizza smells good, etc.
True or False
Scientific theories explain individual occurrences.
False
What is the proper way to use a fire extinguisher?
P.A.S.S. method
Pull the pin
Aim the fire extinguisher at base of fire
Squeeze the handle
Sweep from side to side
What should you do if you are absent?
Talk to teacher and check schoology
Why is it important to only change one variable in an experiment?
Changing only one variable allows scientists to determine the specific cause-and-effect relationship between that variable and the observed results.
Name THREE tools you can use to collect quantitative data.
ruler, scale, thermometer, graduated cylinder, etc.
What must a scientists do with the results of their experiment before drawing a conclusion?
They must analyze and interpret their results.
What should you do before starting any experiment?
Read all instructions, check equipment for damage, and put on proper PPE.
What percent of your grade comes from assessments?
70%