1.1 What is Science? Flashcards
What is science?
Science is an organized way of using evidence to learn about the natural world.
The body of knowledge that scientific studies have gathered over the years.
Science
What are the goals of science?
To give
explanations for natural events, to understand patterns, and to make predictions.
What are the parts of the scientific Methodology?
-Observing and Asking Questions
-Making Inferences and forming a hypothesis
-Doing Controlled Experiments
-Collecting and Analyzing Data
-Drawing conclusions
A process of noticing and describing events or processes in a careful, orderly way.
Observation
Is a proposed scientific explanation for a set of observations.
Hypothesis
An experiment in which only one variable is changed is called a
Controlled Experiment
Why are variables controlled?
Because if more than one variable is changed in an
experiment, scientists cannot easily tell which variable caused
the results.
The variable that is changed is called?
Independent variable or manipulated variable
The variable that is observed and that changes because of modifications to the independent variables is called?
Dependent variable or responding variable
The group in an experiment that is
exposed to the same conditions as the experimental group except for one independent variable
Control group
What means replicating the experiment?
When scientists need to repeat their experiment several times to see if they got the same result.
Evidence; information gathered from observations
Data
What are the two main kinds of data?
-Quantitative Data
-Qualitative Data
In this data, are numbers found by counting or measuring
Quantitative Data
In this data, describe things that cannot be counted
-Qualtitative Data
A(n) ________ is a possible explanation for a set of observations.
hypothesis
If you measure the width of this book with a ruler, you are collecting ______.
data
A good experiment should have an experimental group and a(n) ____________.
Contral Group
Scientists use data to make_______.
Interference
Is a conclusion or logical interpretation based on
prior knowledge or experience.
Interference
Scientists generate hypotheses using?
Prior knowledge, logical interference and informed, creative imagination.
Some hypotheses are tested by performing
Controlled experiments
Other hypotheses are tested by?
Gathering more data
