Scientific Methods
Scientists notice something around them. They use their 5 senses.
Observation
Metersticks or rulers and done in meters.
The factor that the scientist changes.
Independent Variable
A possible explanation for an observation.
Hypothesis
A prediction and a hypothesis are based on....
Observations
Based on their observation scientists ask.....
Ask a question
Scientists measure volume using this and measuring in these units
A graduated cylinder and liters
The group that stays the same
Control Group
11.2 is the __________ of this set of numbers: 10.1, 12.6, 11.2, 10.1, 16.0
Median
The units of measurement accepted internationally
Scientists develop an investigation to see if their hypothesis is correct or not.
Test the hypothesis
A balance measures this and it is usually recorded in grams.
Mass (weight)
The factor the scientist is measuring.
Dependent variable
This number is the mode of the following set:
11.2, 10.1, 12.6, 16.0, 10.1
10.1
Hypothesis
After the data is reviewed scientists state if their hypothesis is correct or not.
Conclusion
This helps to identify minerals.
A streak plate
Any factor in an experiment
Variable
In this set of data, 5.2 is the ______________
10.2, 12.6, 16.0, 11.2
Range
A gummy worm has 18 segments. Is this qualitative or quantitative data?
Quantitative
During the experiment the scientists record and measure their observations.
Collect Data
This measures wind speed
Anemometer
In an experiment, the ________ group receives the independent variable, and the dependent variable is measured.
Experimental
Gravity is an example of this
The number of digits in a measurement scientists know with a certain degree of certainty
Significant Digits