Scientific method and what is life Flashcards
(48 cards)
Life science
The study of all living in things
Observation
Information obtained by the senses. Done by direct measurement
Inference
An educate a guess about the data. Contains the word because
Meniscus
The curved portion of a liquid win in a container, Must read the bottom of the meniscus at eye level
Volume
The amount of space something occupies. True of solids, liquids, and gases
Mass
The amount of matter in a substance. True of solids, liquids, and gases.
Scientific method
Problem-solving procedures used by scientists to find answers to their questions
Hypothesis
A prediction that can be tested. It is written in the form of an if and then statement
Control group
The group that is the standard of comparison in any experiment
Variable
Factor being tested in an experiment
Experimental group
The group receiving the variable being tested
Control factors
The factors that are the same for both the control group and the experimental group
Organism
Any living thing. Whether it’s one cell or many cells
Cell
The basic unit of structure and function in an organism
unicellular
Single celled organisms. Example bacteria
Development
The process of change that occurs in organisms life
Stimulus
A change in organisms surroundings that causes the organism to react
Response
An action or change in behavior by an organism as a result of a stimulus
Reproduction
The ability to produce offspring
Spontaneous generation
The mistaken idea that living things arrive from non-living sources
Controlled experiment
When a scientist performs two tests(two groups) during an experiment
autotrophs
Organisms that make their own food. Autotroph – self feeder
Heterotrophs
Organisms I cannot make their own food. Heterotroph – other feeder
Homeostasis
Maintaining stable internal conditions despite changes in the surroundings
