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35 Cards in this Set
- Front
- Back
In order to make observations an observer must use....
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1 experiments
*2 the senses* 3 proportions 4 mathematical calculations |
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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
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*1 an inference*
2 a fact 3 a description 4 an observation |
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The general purpose of a scientific system of classification is to
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1 make better interpretations
2 eliminate observations *3 organize for easier study* 4 state theories |
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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 |
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Which descriptive term illustrates an inference?
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1 transparent
2 bitter *3 younger* 4 smooth |
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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. |
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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 |
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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?
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*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 |
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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.
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*1 15%*
2 18% 3 3% 4 85% |
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Density is usually expressed in
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1 cm/in squared
*2 g/cm cubed* 3 km/hr 4 N/m squared |
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The three basic dimensional qualities are
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1 time length and shape
2 density mass and volume *3 time length and mass* |
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Two measurements often used interchangeably are
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1 mass and length
2 density and volume 3 length and shape *4 weight and mass* |
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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
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1 1.0%
*2 2.0%* 3 1.5% 4 4.0% |
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What object is most probably the ice cube?
(diagram on page 8) |
1 A
*2 B* 3 C 4 D |
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Which object probably has the same density as the liquid?
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1 A
2 B *3 C* 4 D |
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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 |
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At which temperature does water have its greatest density?
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1 -7 degrees C
2 O degrees C 3 96 degrees C *4 4 degrees C* |
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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 |
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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 |
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If the sample were cut in half, the density would be
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1 twice as much
2 half as much *3 the same* |
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As a volume of air expands due to heating, the density of the air will
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*1 decrease*
2 increase 3 remain the same |
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In which phase (state) do most Earth materials have their greatest density?
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*1 solid*
2 liquid 3 gas |
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What is the density of an irregularly shaped object that has a volume of 3.0 mm and a mass of 12 grams?
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1 1.0 g/mL
2 2.0 g/mL 3 3.0 g/mL *4 4.0 g/mL* |
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What always happens when a change occurs?
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1 Pollution is produced
2 The temperature of as system increases *The properties of a system are altered.* 4 Dynamic equilibrium is reached. |
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A boundary between two regions of change is called a(n)
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1 transition zone
2 transfer zone *3 interface* 4 cycle boundary |
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Over several years, the apparent size of the Sun as viewed by an observer on Earth will probably
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*1 vary in a cyclic manner*
2 decrease at a regular rate 3 increase at a regular rate 4 vary in an unpredictable manner |
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Which graph best represents the greatest rate of temperature change?
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(diagram on page 12)
answer- 2 |
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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* |
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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
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Which energy source listed below is most nearly pollution free?
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1 nuclear
*2 solar* 3 coal 4 natural gas |
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Which pollutant is not usually produced or added to the environment by human activities?
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1 sound
*2 pollen* 3 radiation 4 smoke |
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People who live close to major airports are most likely to complain about which form of pollution?
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*1 sound*
2 heat 3 radioactivity 4 particulates |
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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?
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*1 equilibrium*
2 transpiration 3 hydration 4 saturation |
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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* |
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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 |