Unit 1 Test


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




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




3. When change occurs, energy is exchanged at




4. Which descriptive term illustrates an inference?




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



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



7. An interpretation based on an observation is called




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




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




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




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




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?




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




14. Which statement is not true about Earth changes?




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?




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?




17. What statement is not true about change?




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




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




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?




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




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.




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




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




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



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