jaktin science rocks
chapter 1
Section 1 what is scinene?
A.science-an organized way of atuding things to find ansewers to qustionsB.critical thinking-a process that uses certain skills to solve prolems
C.scientific method-an organized way to slove a problem usng a series of procrdurs
1.state the problem
2.gather information
3.form a hypothesis
4.test hypothesis with an experiment
5.analyze data
6.draw concluion
7.report conlustion
D.theories and laws
1.scientific theory-an explanation of things or events based on science knowledge;the result of many observations and experiments
2.scientific law-a statement abouthow things work in nature
E.international system of units (SI)-standard system of measurements used by scientists
Section 2 living things
A.how are living things,ororganism alike?
1.living things are oranized
a.cell-the smallest unitof an organism
b.each cell have an orderly structure and contains hereditarymaterial
2.living things respond
a.stimulus-anything that causes some change in an organism
b.response-the way an oranism rects to a stimuls, oftenresults on movement
3. living things use energy
4.living things grow and develop
a.growth of may-celled orgnism is due to an increase in the numbers of cells.
b.growth of one-celled organisms is due to an increase in the cellsize of the cell
c.development-change that take place during the life of an oranism
5.living things reproduce
B.what do living things need?
1.a surroundings that provides for all of the organism's needs
2.substances, like water,proteins, fats, and sugars
Section 3 where does life come from?
A.spontaneous generation-early theory that living things could come from nonliving things;disproved by louis pastrur in mid 1800s
B.biogenesis-theory that living things come only from other living things
C. alexander I. oparin's hypothesis on the of life-gases in earth's early atmosphere combined to from compley compoundsfound in living things
1.gases:
a.ammonia
b.hydrogen
c.methane
d.water vapor
2.Stanstanley L. Miller and Harold Urey testedOparin's hypotheseis and showed that chicals found in living things could be produced.
Section 4 how are livings things classified?
A. classification systems
1.aristotle classified organisms more than 2'000 years ago
2.caroulus linnaeus introduced a system based on grouping of organisms
3.modern systems based on phylogeny- the evolutionary history of an oraniam.
A.science-an organized way of atuding things to find ansewers to qustionsB.critical thinking-a process that uses certain skills to solve prolems
C.scientific method-an organized way to slove a problem usng a series of procrdurs
1.state the problem
2.gather information
3.form a hypothesis
4.test hypothesis with an experiment
5.analyze data
6.draw concluion
7.report conlustion
D.theories and laws
1.scientific theory-an explanation of things or events based on science knowledge;the result of many observations and experiments
2.scientific law-a statement abouthow things work in nature
E.international system of units (SI)-standard system of measurements used by scientists
Section 2 living things
A.how are living things,ororganism alike?
1.living things are oranized
a.cell-the smallest unitof an organism
b.each cell have an orderly structure and contains hereditarymaterial
2.living things respond
a.stimulus-anything that causes some change in an organism
b.response-the way an oranism rects to a stimuls, oftenresults on movement
3. living things use energy
4.living things grow and develop
a.growth of may-celled orgnism is due to an increase in the numbers of cells.
b.growth of one-celled organisms is due to an increase in the cellsize of the cell
c.development-change that take place during the life of an oranism
5.living things reproduce
B.what do living things need?
1.a surroundings that provides for all of the organism's needs
2.substances, like water,proteins, fats, and sugars
Section 3 where does life come from?
A.spontaneous generation-early theory that living things could come from nonliving things;disproved by louis pastrur in mid 1800s
B.biogenesis-theory that living things come only from other living things
C. alexander I. oparin's hypothesis on the of life-gases in earth's early atmosphere combined to from compley compoundsfound in living things
1.gases:
a.ammonia
b.hydrogen
c.methane
d.water vapor
2.Stanstanley L. Miller and Harold Urey testedOparin's hypotheseis and showed that chicals found in living things could be produced.
Section 4 how are livings things classified?
A. classification systems
1.aristotle classified organisms more than 2'000 years ago
2.caroulus linnaeus introduced a system based on grouping of organisms
3.modern systems based on phylogeny- the evolutionary history of an oraniam.
