Science and Scientific Investigations
What is science?
Science is the systematic study of natural events and conditions.
Science affects:
a. The way we think
b. The way we live our lives
c. a and b
C. The way we think and the way we live our lives
What is a scatter plot?
Scatter plot = a graph with points plotted to show a possible relationship between two sets of data.
What is measurement?
Measurement is a description including a number and
a unit.
What does a simulation do?
A simulation uses a model to imitate the function, behavior, or process of what a model is representing.
What are the characteristics of a scientist?
1. Careful observer
2. Curious
3. Creative
4. Logical
5. Skeptical
6. Objective
What is empirical evidence?
Empirical evidence is all the measurements and data scientists gather in support of a scientific explanation.
What is a bar graph?
Bar graph =used to display and compare data in a number of separate categories
What is scientific notation? Give an example.
Scientific notation is a short way of representing very large or very small numbers
ex. 300,000,000 = 3 x 108
What is the difference between a scale model and a life-size model?
A scale model is used to study objects/systems that are too small or too large too observe, while a life size model is the same size as a real world object.
What is an experiment?
An experiment is an organized procedure to study something under controlled conditions.
Why would a scientist want to work in a laboratory?
A scientist would want to work in a laboratory because they could control the conditions, and so they could use tools to help make better observations.
What is a model?
Model = representation of an object or process that allows scientists to study something in greater detail
What is the difference between accuracy and precision?
Accuracy is closer to the true value, while precision can be repeated with the same results.
What is a mathematical model?
A mathematical model uses different forms of data to represent the way a system or process works.
What is the difference between an independent variable and a dependent variable?
The independent variable is deliberately changed, and the dependent variable changes based on the results of the independent variable.
Why would a scientist want to work in the field?
A scientist would want to work in the field to collect data in nature.
What is the difference between a linear relationship and a nonlinear relationship?
A linear relationship is constant, while a nonlinear relationship is not.
Describe the SI units for length, mass, time, and temperature.
Length = meter(m)
Mass = kilogram(kg)
Time = second(s)
Temperature = kelvin(K)
What is a conceptual model?
A conceptual model is a representation of how parts of a system are related or organized.