Mr. Gillam Honors Physical Science Midterm

what represents 125.7 in scientific notation

1.257 x 10^2

12.7 cc is equal to

12.7 ml

an aquatic ecologist collects date about water quality of an ohio lake throughout the year. in the summer, the ecologist shares data with a public health official from a nearby town. which data would a public health official use to determine whether the water was safe for swimming?

A & D- the temp of the surface water and the concentration of E. coli bacteria near the surface of the lake

two identical graduated cylinders with the same volume contains different liquids are placed on balances. based only on what you can observe from the picture, what property differs between the two liquids?

A. density

if you were working for the Center of Disease control and discovered a new, highly dangerous pathogen, what information should be presented to the public that may prevent a widespread epidemic of the disease?

a report on how the pathogen is transmitted from one organism to the other

a visual display of data or information that shows a change over time is a

b- line graph

what was the independent variable in this experiment?

b- the amount of ice added to each beaker

which measuring instrument would give readings in milligrams?

c- balance

which was the dependent variable in this experiment

c- the initial amount of water in each beaker

during the first 5 minutes of the experiment...

c- thermal energy is transferred from the ice to the water

what is the term for "anything that has mass and takes up space"?

d- matter

Food cooked in boiling water in the mountains cooks slower than when cooked at sea level. If the temperature under the pot is increased, the food will cook

d- none of these