Safety
We always wear these when doing an experiment
safety goggles
anything that can exist in differing amounts or types, anything that changes in an experiment
Variable
What is the last step in the scientific method?
Communicate the results/write a conclusion
The information (evidence) gathered from observations and experimentation is called
Data
The last thing you do before leaving the lab after doing an experiment
wash your hands!
The variable that is intentionally changed by the experimenter
independent variable
Data you record that includes numbers is referred to as ____________________observations
quantitative
Data you collect that is descriptive, such as "the dome was flat in the center"
Qualitative data
What you say
and
what you use
if someone is on fire
Say "Stop, drop, roll"
Use fire blanket
A scientist wants to see if adding salt to the water plants are grown in causes them to gain weight. What is the independent variable in this experiment?
Adding salt to the water
When something like a sugar pill, that has no reason to have an effect, affects people because they think it will have an effect
placebo effect
The group in an experiment that is used for comparison
Control group
What you do if a chemical gets in your eye (and for how long)
Run to the eyewash station and rinse for 15 minutes
A scientist wants to see if drinking Gatorade affected heart rate. What is the dependent variable in this experiment?
Heart rate
What are the first three steps of the scientific method?
Ask a question/make an observation
form a hypothesis
design an experiment
What three things are included when you communicate results
claim, evidence, reasoning
improvements
things to continue to test
What you do if you break a glass (3 things)
stay with the glass
send partner for broom and dustpan
place in broken glass container
tell teacher
A scientists wants to see if plants exposed to more light produce more bubbles. What are three control variables that are possible.
Soil
Plant type
environment
water amount given
The difference between a law and a theory
A theory explains, a law describes
When a hypothesis is supported over a long period of time and is the accepted explanation by the scientific community, we make a ______________.
theory