science keywords Flashcards
natural science
the study of the natural world
two types of natural sciences
physical science and biological science
physical science
deals with inanimate (non living things)
subjects of physical science
physics, chemistry, astronomy, geology and computer science
biological science
deals with living things
two types of biological science
botany and zoology
botany
the study of plants
zoology
the study of animals
hypothesis
a proposed explanation of why certain events take place
theory
is an explanation of observations and is bases on hypothesis, laws and facts
scientific law
a description of observed occurrences and is based on repeated experiments
primary data
collected by the researcher themselves
secondary data
data that has not been collected by the scientist themselves
cell
smallest working unit of a living thing
organism
the name given to any living thing. for example, both plants and animals are organisms
multicellular
organisms made up of 2 or more cells
unicellular
organisms made up of only one cell
tissue
a group of cells of the same type working together to do a particular job
organ
a group of tissues working together to carry out a function
system
a number of organs working together to carry out a function
the seven characteristics of life
movement
reproduction
growth
response
respiration
excretion
nutrition
animal cell
has mitochondria, cytoplasm, cell membrane, nucleus, ribosome