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