Unit 1 Test


1. Which event would be most predictable one year in advance of the event?

A hurricane in Florida.
An earthquake in California.
A volcanic eruption in Japan.
An eclipse of the sun.

2. As viewed from the Earth, the moon's phases have shown which type of change over the past 50 years?

Noncyclic and predictable.
Noncyclic and unpredictable.
Cyclic and predictable.
Cyclic and unpredicatble.

3. When change occurs, energy is exchanged at

A transition.
A transfer zone.
An interface.
An isozone.

4. Which descriptive term illustrates an inference?

Smooth
Bitter
Younger
Transparent

5. A substance is cut into several pieces. As compared to the density of the original sample, the density of each piece will be

Greater
Less
The Same

6. As the temperature of water changes from 4 degrees C. to 0 drgrees C., the volume of the water will

Increase
Decrease
Remain the same

7. An interpretation based on an observation is called

A fact
An inference
A classification
A measurement

8. What is the main reason why scientists classify objects and events?

To make better observations.
To organize materials for easier study.
To make better measurements.
To eliminate errors.

9. What is the length of any one side of a cube with a mass of 81g. and a volume of 27 cubic centimeters?

1 cm
2 cm
3 cm
8 cm

10. Which statement is true about the environment of most of the Earth?

It is usually greatly unbalanced.
It is usually in equlibrium and difficult to change.
It is usually in equlibrium but easy to change on a small scale.
It is normally heavily polluted by natural occurrences.

11. What is the density of a 3.0 cm. cube if it's mass is 54 grams?

18 g/cm3
2.0 g/cm3
6.0 g/cm3
9.0 g/cm3

12. A student determines the volume of a cubic crystal to be 8.6 cubic centimeters. What is her percent deviation if the correct volume of the crystal is 8.0 cubic centimeters?

6.0%
6.5%
7.0%
7.5%

13. A student measures the length of a room and determines that it is 6.9 meters long. If the actual length of the room is 7.5 meters, the student's percent deviation (percent error) is

20%
14%
8%
6%

14. Which statement is not true about Earth changes?

Most changes are cyclic.
The scope and direction of most changes are not predictable.
Change is the natural state of the environment.
A change in the environment also involves a change in time and space.

15. While on a field trip to a large lake in New York State, an observer records four statements about this lake. Which of these statements is most likely an inference?

The lake was formed by glacial action
The water is clear enough to see the bottom of the lake.
A log is floating in the lake.
The surface temperature of the lake is 18.5 degrees C.

16. An empty 250 milliliter beaker has a mass of 60 grams. When 100 milliliters of oil is added to the beaker, the total mass is 140 grams. What is the density of the oil?

1.7 g/ml
1.4 g/ml
0.8 g/ml
0.6 g/ml

17. What statement is not true about change?

Some changes occur without the exchange or use of energy.
Some rates of change of Earth processes are difficult to measure
Change can be described as the occurrence of an event.
Time and space are frames of reference by which change is described.

18. A number of objects are grouped on the basis of common properties. What is this process called?

Observation.
Inference.
Classification.
Measurements.

19. A student is asked to classify some rocks. He ought to base his classification on

Inference.
Opinions.
Hypotheses.
Observations.

20. A student measured the mass of a rock sample and recorded it as 51 grams. Later it is determined that the accepted value for the rock's mass is 60 grams. According to the Reference Tables, what was the percent deviation?

7%
9%
15%
18%

21. The main reason for the use of instruments in scientific work is to

Eliminate errors in observation.
Save time.
Extend the human senses.
Eliminate errors in measurement.

22. Which property was probably used to classify the following: Group A: Water vapor, Air, Oxygen. Group B: Aluminum, Ice, Iron. Group C: Water, Gasoline, Alcohol.

Chemical composition.
Specific heat.
State (phase) of matter.
Abundance within the Earth.

23. Which characteristic of an object will always change as the object travels from the Earth to the moon?

Mass
Volume
Density
Weight

24. Two solid cubes have equal mass. Which cube would occupy the greatest volume?

Aluminum (density = 2.7 g/cm3)
Glass (density = 3.6 g/cm3)
Tin (density = 7.3 g/cm3)
Lead (density = 11.4 g/cm3)

25. In which phase (state) do most Earth materials have their greatest density?

Solid
Liquid
Gas

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