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91 Cards in this Set

  • Front
  • Back
What are saftey symbols used from?
Alert u of possible dangers & remind u to work carefully.
What are 2 things u should always do before begining a lab?
read all directions and review lab with teacher.
What is a manipulated veriable ?
one thing that is changed from the begining of the experiment.
What is a responding veriable?
the result you are looking for in a experiment;responds to minipulated veriable.
What format is hypothesis?
If.....Then
What is a systematic observation?
all veriables are kept the same and u have a plan & record observations.
What is a experiment?
making comparison between 2 or more situations.
What is qualitative?
Color,shape,texture,smell taste,feel
what is a quantitative?
using #'s
What is basic S.I unit for mass?
gram
What is the basic S.I unit of length?
meater
What is the basic S.I unit for volume?
liter
What is the basic S.I unit of temprature?
degrees celcius
What is weight?
measure of the force of gravity on a object.
what is mass?
amount of matter in a object.
What is the tool used to measure mass?
triple beam balance
what is volume?
amount of space a object takes up.
what is the tool to measure volume?
graduated cylinder
What is temprature?
average amount of kinetic energy in the molecules of a substance.
What is the tool to measure temprature?
thermomeater
what is centi?
0.01
what is milli
0.001
what is kilo
1,000
who invented firt compound microscope?
Hans and Zacharias Jansses
Who recorded findings in Micrographia?
Robert Hooke
what is centi?
0.01
what is milli
0.001
what is kilo
1,000
who invented firt compound microscope?
Hans and Zacharias Jansses
Who recorded findings in Micrographia?
Robert Hooke
what is centi?
0.01
what is milli
0.001
what is kilo
1,000
who invented firt compound microscope?
Hans and Zacharias Jansses
Who recorded findings in Micrographia?
Robert Hooke
what is centi?
0.01
what is milli
0.001
what is kilo
1,000
who invented firt compound microscope?
Hans and Zacharias Jansses
Who recorded findings in Micrographia?
Robert Hooke
What is the tool used to measure mass?
triple beam balance
what is volume?
amount of space a object takes up.
what is the tool to measure volume?
graduated cylinder
What is temprature?
average amount of kinetic energy in the molecules of a substance.
What is the tool to measure temprature?
thermomeater
Who discovered bacteria & protist using more powerful simple microscopes?
Anton von Leeuwenhoek
2 types of simple microscopes?
hand lens & microviewer
How do u get magnification of compound microscropes?
Eye piece X objective
3 parts of cell theory?
all living things are made of cells
9 things that cell do to keep organisms alive?
repair,reproduction,fighting invaders,comunication,transportation of oxygen,fuel supply,energy production,waste removal,temprature control
What is the diffrence beetween eukaryotic and prokaryotic?
prokaryotic cells have no nucleus and eukaryotic have nucleus
what is microcondira?
produces energy for the cell
what is lysosomes?
digest old organelles and breaks down larger food particles into smaller ones.
What levels of organization within a organism, beginning with cell
cell ,tissue ,organ,organ system,organism
difine structure?
way object is constructed or how it works.
What is function?
the job something preforms or what it is used for.
Structure of DNA ?
long strands connected with 2 nitrogen bases.
Which nitrogen bases go togather?
A to T C to G
In which phase does a cell spend most of his life?
interphase
What happens in interphase?
cell grows to full size,replicates DNA,prepares to divide
What was Gregor Mendal contributation to study inheritance?
stuided pea plants and there off spring the Father of Genetics.
What is heridity?
passing from parent to off spring
What is genitics?
the study of herdity
how are genes are related to traits?
genes give instrucations to traits.
Where is the genitic located?
necleus
selective breeding
having organism reproduce for disired traits
Who do offspring inherit characteristics?
parents
what present of water covers the earth?
75%
point source is?
you can point to the one sorce
saturated zone is?
area of perable rock filled with water.
What was Gregor Mendal contributation to study inheritance?
stuided pea plants and there off spring the Father of Genetics.
What is heridity?
passing from parent to off spring
What is genitics?
the study of herdity
how are genes are related to traits?
genes give instrucations to traits.
Where is the genitic located?
necleus
what is permeable?
water can pass through easily
what is a water shed?
land where all water falls and drains to same river
what are biotic factors?
living things
what is a population?
Flower Mound
what is a limiting factor?
envirmental factor that keeps populaton from incrasing
people who use compost piles take advantage of what process?
decay of biomass
where do producers get there energy?
sunlight
where do deconposers get there energy?
breaking down remains of organisms
ecology is?
how living things enteracte with each other and there enviorment.
what are levals of organization starting with smallest unit?
organism population community ecosystems
How is carbon dixoide and oxygen cycled?
carbon taken from plants and oxygen is relesed oxygen taken from animals and used during respiration and carbon is realesed.
why does pure oxygen have to be fixed?
because pure nitrogen can not be used by organisms
What process combines free oxygen in the air with other elements?
niterogen fixation
What role does nitrogen fixing bacteria in the nitrogen cycle?
nitrogen fixing take in nitrogen gas and combinde with other elements to form nitrogen compounds.
What is stimulus?
causes phsical response in organism
what is diffrent between enternal and external stimulus?
internal happens inside and external happens out side of the organism