click below
click below
Normal Size Small Size show me how
sciencech.6
Question | Answer |
---|---|
process of observation and analysis used to develop a reliable, consistent, and objective representation & understanding of our world | scientific method |
visible light into its component colors | spectroscope |
colors as a function of some property of a solution, solid, or gas | spectrophotometer |
observation,organization, experimental, inference, prediction | scientific experimentation |
observing and describing, formulating hypotheses, making predictions based on the hypotheses and testing those predictions, and deriving conclusions | scientific method |
teachers encourage students to study, conduct research, collect and analyze data, and then develop generalizations and rules based on their findings | inductive reasoning |
causes the seasons | the tilt ad revolution |
the northern hemisphere experiences ------ when it is tilted towards the sun | summer |
when the northern hemisphere is tilted away from the sun it experiences | winter |
Earth is not tilted away or toward the earth in the | fall and spring |
the study of the structure and composition of the earth | geology |
the 3 layers of earth | core, mantle, crust |
moving section of earth | plates |
cracks in the crust which result in movement | faults |
this occurs when plates slide past one another quickly | earthquakes |
molten rock beneath the earths crust | magma |
molten rock on the earths surface | lava |
creation of new oceanic crust | seafloor spreading |
everything that has mass and volume | matter |
the amount of matter in an object | mass |
amount of space an object occupies | volume |
ratio of mass to volume | density |
this affects the size, form, or appearance of a material | physical change |
alter the molecular structure of matter | chemical change |
when compounds break apart and recombine | chemical reaction |
study of living things | biology |
the basic structural unit of living things | cell |
smaller cell structures surrounded by cell fluid, or cytoplasm | organelles |
sunlight energy is made when plant cells convert it to chemical energy | photosynthesis |
absence of oxygen | fermentation |
growing new plants from cutting | fragmentation |
water is absorbed by a seed | germination |
evaporation of water from a plant | transpiration |
controls movement of the skeleton and movement within organs | muscular system |
has 2 division, voluntary and involuntary | nervous system |
eliminates waste from the body | excretory system |
to make food, plants take in carbon dioxide from the air, the waste the plants give off is oxygen, when animals breathe in oxygen to digest food, they give off carbon dioxide | carbon dioxide-oxygen cycle |