Nature of Science Flashcards
Attributes of science
- Discovers and documents natural phenomena
- Constructs and evaluates explanations of phenomena
- Objective
- Testable
- Public
Attributes of Pseudoscience
- Cannot be tested
- Not backed by facts or data
- Based on dogma
- Lack of evidence against it serves as evidence for it
What is an observation?
An observation is something noted or perceived using one or more of the five senses.
What is an inference?
An inference is a conclusion reached by using prior observations. Inferences may change as new observations are made.
What is biology?
From words “bios” and “logia”. Means “study of life”.
What is chemistry?
The branch of science that deals with the changes and reactions between substances.
What is physics?
The branch of science concerned with the nature and properties of matter and energy.
What is geology?
The study of the structure of the earth and its origin.
What is astronomy?
The study of the observable universe beyond the atmosphere of Earth.
What is an atom?
The smallest amount of matter that can exist while being recognized as pertaining to a certain substance. Makes up all matter.
What is a proton?
A positive sub-atomic particle.
True or False: Neutrons are positive sub-atomic particles.
False. Neutrons are neutral.
True or False: Electrons are negative sub-atomic particles.
True.
True or False: Atomic mass depends on the amount of protons in the nucleus of an atom.
False. Atomic mass is roughly the number of protons and neutrons in an element (explanation: they both weigh about 1u).
True or False: The Atomic number depends on the amount of protons an element has.
True.
What is the periodic table of elements?
A form of classification for all the known elements. Grouped based on atomic mass.
What are the columns in the periodic table known as?
Groups or families.
What are the rows in the periodic table known as?
Periods.
What are elements?
Pure substances that cannot be broken down by physical or chemical means.