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1st semester science
Question | Answer |
---|---|
what are the steps to the scientific method | observe,hypothisis,plan,data,conclusion,next steps |
why do scientist use the scientific method | scientist use the scientific method because it is easier tho experiment and is more orginized |
what is another word for hand lens | magnifying glass |
what are some diffrentces in microscope | some are compound, some use light their speciment |
what are the observable characteristics of an object | physical proporties |
what are peices of information that come to you directly through your senses | observations |
where are places where you find information such as the internet,books,or experts | resorces |
what are true information from which the resorce can be cited | facts |
we can only see objects as they reflect _____ back to our eyes | light |
what kind of lens is curved inward,and it makes what is seen appear smaller | concave |
what kind of lens is curved outward and magnafies or make objects appear larger | convex |
magnification is directly related to how curved the ______ is | lens |
what would be used as a magnafier | a curved lens |
who invented the single lens microscope | antovanleeweenhoek |
what is the field of veiw as seen through the microscope | you see more of specimen |
as power is increased on a microscope,what happens to the feild of veiw | it increases |
what part of a microscope do you look through | the eyepeice |
name the part of a microscope that you lay your specimen on | the stage |
what type of microscope has 2 or more lens | compound microscope |
who improved the compound microscope and drew the objects that he could see | robert hooke |
what 2 cell parts do plant cells have that animal cells do not have | cell wall,chloroplasts |
what is the smallest living body part | cells |
which cell part surrounds the cell allowing matirials to come in and out of the cell | cell membrane |
what cell part contains chromosomes | nucleous |
in a plant,which cell part uses energy from the sun to make food | chloroplasts |
which cell part is the power house of the cell | mitochondria |
cells have differant shapes to fit their ______. | jobs |
cells make tissues,tissues make ______,and _____ make organ _____ | organs,organs make organ systems |
what is the bodys inner transportation system | circulatory |
what is the major organ associated with the circulatory system | the heart |
what system allows the exchange of gasses between the outside air and your body | respitory |
what system breaks down food into smaller peices | digestive |
what system allows waste to leave the body in a form of urine | urinary |
what system works with the bones allowing the bones to move | muscular |
what system is made up of bones | skeletal |
the trachia and the alvoli work together as of what body system | respitory |
what is the main function of the urinary system | to rid body of wast |
what are the bodys chemical messangers | hermones |
what is the name of the bodys finalle journey to adulthood | puborty |
what are the muscles of the heart called | cardiacs |
what are the three vessels of the circulatory system | arteries,capilaries,veins |
what is the largest organ of the human body | the skin |
what is natures way of recycling natural products in the environment | composting |
what are the living and nonliving things in an area | ecosystems |
biotic factors are all of the _______ things in an ecosystem | living |
abiotic factors are all of the _______ things in an ecosystem | nonliving |
a rabbitt eating grass is an example of | biotic factors |
what are some differant areas in the world that have been split up because they are all very alike | biomes |