 | Term | Definition |
| |
unit for length |
meter |
| |
unit for volume |
liter |
| |
unit for mass |
gram |
| |
kilo |
1000 |
| |
centi |
1/100 |
| |
milli |
1/1000 |
| |
independent variable |
a variable that is controlled and changed by the researcher. factor in experiment that is changed |
| |
dependent variable |
the factor, or outcome, that will be measured in an experiment. result of experiment |
| |
constants |
the factor that stays the same or sample that is treated like other experimental grouops except the independent variable is not applied to it |
| |
genotype |
organisms genetic makeup in chromosons (Aa). |
| |
phenotype |
organisms visible genetic makeup and the environments influence on that makeup. |
| |
hetero, homo |
different, same gene. hetero has 1 dominant and recessive gene |
| |
structure and function of dna |
looks like double helix with 4 nitrogen base paris as rungs on stairs. function is to carry genetic info for organism |
| |
isotope |
atoms of same element that have diff numbers of neutrons |
| |
metals |
solids. highmelting points. luster. malleable. ductile |
| |
nonmetals |
gases. brittle solids at room temp. poor conductors of heat and electricity. |
| |
metalloids |
share properties with metals and nonmetals |
| |
most reactive |
1(alkaline) |
| |
least reactive |
18(noble gases) |
| |
law of conservation of momentum |
total momentum of a group of objects remains constant unless outside forces act on the group |
