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35 Cards in this Set

  • Front
  • Back
In order to make observations an observer must use....
1 experiments
*2 the senses*
3 proportions
4 mathematical calculations
A pebble found in a dry field has rounded edges. An instructor says that the pebble has been rolled over in a flowing stream. His comment can be classified as
*1 an inference*
2 a fact
3 a description
4 an observation
The general purpose of a scientific system of classification is to
1 make better interpretations
2 eliminate observations
*3 organize for easier study*
4 state theories
Which property was probably used to classify the substances below?

(diagram on page 2)
1 chemical composition
2 specific heat
*3 physical state (phase)*
4 abundance within Earth
Which descriptive term illustrates an inference?
1 transparent
2 bitter
*3 younger*
4 smooth
The graph below shows the amount of noise pollution caused by factory machinery during a one-week period. Which is best supported by the graph?
(graph on page 6)
1 The machinery ran 24 hours a day.
*2 The machinery was turned off Sat. and Sun.*
3 The level of pollution remained constant during work hours.
4 The noise volume reached a peak on Friday.
A student recorded the times of three successuve high tides at one location as:
9:12 am
9:38 pm
10:04 am
What is the approximate time of the next high tide?
1 10:12 pm
*2 10:30 pm*
3 10:38 pm
4 11:04 pm
While on a field trip to a large lake in NYS an observer recorded four statements about this lake. Which of these statements is most likely and inference?
*1 The lake was formed by glacial action*
2 The water is clear enough to see the bottom of the lake.
3 A log is floating in the lake.
4 The surface temperature of the lake is 18.5 degrees C
A student measures the volume of a rock sample to be 17 cubic centimenters The student later finds that the actual volume of the rock is 20 cubic centimeters. Calculate the percent deviation of the student's measurement.
*1 15%*
2 18%
3 3%
4 85%
Density is usually expressed in
1 cm/in squared
*2 g/cm cubed*
3 km/hr
4 N/m squared
The three basic dimensional qualities are
1 time length and shape
2 density mass and volume
*3 time length and mass*
Two measurements often used interchangeably are
1 mass and length
2 density and volume
3 length and shape
*4 weight and mass*
A student determines the mass of a rock to be 196 grams but the actual mass of the rock is 200 grams . The student's approximate percent deviation (percentage of error) is
1 1.0%
*2 2.0%*
3 1.5%
4 4.0%
What object is most probably the ice cube?
(diagram on page 8)
1 A
*2 B*
3 C
4 D
Which object probably has the same density as the liquid?
1 A
2 B
*3 C*
4 D
Which choice lists the object d in the order of lowest density to highest density?
(diagram on page 8)
*1 A B C D*
2 A D C B
3 D C B A
4 C B A D
At which temperature does water have its greatest density?
1 -7 degrees C
2 O degrees C
3 96 degrees C
*4 4 degrees C*
Which two minerals samples have the same density?
(diagram on page 9)
1 A and D
*2 A and E*
3 C and D
4 B and E
What is the density of the object?
(diagram on page 9)
1 0.5 g/cm cubed
*2 2.0 g/cm cubed*
3 5.0 g/cm cubed
4 6.0 g/cm cubed
If the sample were cut in half, the density would be
1 twice as much
2 half as much
*3 the same*
As a volume of air expands due to heating, the density of the air will
*1 decrease*
2 increase
3 remain the same
In which phase (state) do most Earth materials have their greatest density?
*1 solid*
2 liquid
3 gas
What is the density of an irregularly shaped object that has a volume of 3.0 mm and a mass of 12 grams?
1 1.0 g/mL
2 2.0 g/mL
3 3.0 g/mL
*4 4.0 g/mL*
What always happens when a change occurs?
1 Pollution is produced
2 The temperature of as system increases
*The properties of a system are altered.*
4 Dynamic equilibrium is reached.
A boundary between two regions of change is called a(n)
1 transition zone
2 transfer zone
*3 interface*
4 cycle boundary
Over several years, the apparent size of the Sun as viewed by an observer on Earth will probably
*1 vary in a cyclic manner*
2 decrease at a regular rate
3 increase at a regular rate
4 vary in an unpredictable manner
Which graph best represents the greatest rate of temperature change?
(diagram on page 12)

answer- 2
A student measures the distance from a bridge to a rock every day for a week. What is indicated by the grpah of these measurements as shown below
(diagram on page 12)
1 no change in time or distance took place
2 as distance decreased, time increased
3 as distance increased, time decreased
*4 as time increased, distance remained the same*
Based on this data table which graph best represents the general relationship between population and concentration of dust particles?
(diagram on page 14)
answer- 4
Which energy source listed below is most nearly pollution free?
1 nuclear
*2 solar*
3 coal
4 natural gas
Which pollutant is not usually produced or added to the environment by human activities?
1 sound
*2 pollen*
3 radiation
4 smoke
People who live close to major airports are most likely to complain about which form of pollution?
*1 sound*
2 heat
3 radioactivity
4 particulates
Which condition exsists when the rates of water flowing into and out of a lake are balanced so that the lake's depth appears to be constant?
*1 equilibrium*
2 transpiration
3 hydration
4 saturation
What is likely cause for the increase of pollutants of 8am and 5pm on the two days?
(diagram on page 15)
1 change in insolation
2 occurence of precipitation
3 high wind velocity
*4 heavy car traffic*
On the basis of the trends indicated by the graph at what time on Thursday July 12 will th greatest amount of pollutants probably be observed?
(diagram on page 15)
1 12 noon
*2 5pm*
3 3am
4 8am