Scientific Method
What is the 1st step of the scientific method?
Ask a Question
When a scientist shares her findings with other scientists, this is called?
peer review
Before you can form a hypothesis, you need to
a. state the problem or question
b. perform an experiment
c. state a conclusion
a. state the problem or question
What is part of proper lab safety?
a. | Safety apparel is to be worn when specified by the teacher. | c. | No horseplay or other inappropriate behavior during a lab. |
b. | Report all accidents, no matter how minor. | d. | All of the choices |
All of the choices.
A ball is dropped from several distances above the floor (in meters) and the height it bounces is then measured (in centimeters).
The height it bounces would go on which axis?
The Y axis
What is the Scientific Method?
A step-by-step process used to answer questions
A testable explanation to a problem?
Hypothesis
This explains the WHAT of natural phenomenon
Scientific Law
In an experiment, the factor that we measure is called the
dependent variable.
Is there a relationship between the numbers of hours a student studies and the score s/he gets on the weekly quiz?
What is the dependent variable?
The score on the weekly quiz
Using your 5 senses would help you do what?
Make observations
This explains the why of a natural phenomenon
Scientific Theory
In an experiment this is kept the same throughout the experiment to minimize errors.
Constants
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the plants that can live in the water.
In this experiment the independent variable is?
the amount of salt in the water
A fisherman used fishing lines of several different gauges (test pounds) and recorded the number of fish caught on each gauge.
What would be the best title for this graph?
How different gauges affects the number of fish caught
What step involves collecting or taking data?
Experimenting
If I look in the sky and notice large grey cumulonimbus clouds and the air growing suddenly cooler, what might I infer?
That it is going to storm
This is often referred to as a comparison group?
Control group
In the experiment, this variable is manipulated by the scientist.
Independent variable
A candle was burned under glass jars of different volumes (in mL) to see if the volume of the jar affects the length of time (in seconds) the candle burns.
Which part of the statement goes on the X axis?
Different volumes of the jar
Name at least 5 steps in scientific method
Ask Question, Background Research, Form Hypothesis, Experiment, Analyze Data, Form Conclusion, Peer review
A goat is seen next to a boy who is in the water and looks unhappy. What inference can be made about the observation?
The goat more then likely kicked the boy in the water.
Which of the following hypotheses is written most correctly?
A) If a tennis ball is frozen, it won't bounce as high
B) If I heat up a tennis ball it will bounce high.
C) Frozen tennis balls will not bounce as high.
D) If I freeze a tennis ball, then it will not bounce as high.
D) If I freeze a tennis ball, then it will not bounce as high.
Francesco placed pieces of meat in several jars. He divided the jars into two groups. He covered the first group of jars with fine cloth. He left the second group of jars uncovered. He observed the jars for several days. Maggots appeared only on the meat in the group of jars left uncovered.
Which jar is the control group?
The non covered jar
Which of the variables would be the independent variable?
Distance (m) Time (s)
10.3 1.5
20.2 2.9
29.8 4.3
40.4 5.8
Distance