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science study guide
1st semester study guide
Term | Definition |
---|---|
red | cold star |
blue | hot star |
red, orange, yellow, white, blue | coldest star to hottest star |
parallax | how are the distances to a star measured |
meteor | enters earths atmosphere |
meteorite | stricks the earth |
meteoroid | vaporizes and breaks appart |
constellation | patterns of stars, dust, and gas, held together by growing. can be elliptical, spiral, or irregular |
earths tilt, location of the constellation in the night sky | why can some constellations ge seen all year and others are only visible during certain seasons? |
variable | a test or result |
constant | variable that does not change in an experiment |
identify a problem | 1 step of scientific method |
gather information | 2 step of scientific method |
make hypotheses | 3 step of scientific method |
test hypothesis | 4 step of scientific method |
analyze the results | 5 step of scientific method |
draw conclusions | 6 step of scientific method |
sedimentary | compacted and cemented together |
metamorphic | temperature, pressure, or presence of hot watery fluids |
igneous | made from hot magma that cools and hardens |
minerals | luster, color, hardness, cleavage, streak |
continental drift | a theory that all continents slowly drifted to their current locations, pangea plate and plate tectonics |