NAME: _____________________________________________ DATE: ___________________ PD: __________
INSTRUCTIONS: Write the letter of the correct answer to the questions in the space before the number.
_____ 1. An interpretation based upon an observation is called
D) an inference A) a fact B) a classification C) a measurement
_____ 2. As a volume of air expands due to heating, the density of this air will
A) remain the same B) increase C) decrease
_____ 3. Which of the following statements about a rock is an observation?
A) The rock cooled very rapidly. B) The rock is black and shiny.
D) all of the above
C) The rock formed deep in the Earth's interior. D) The rock dates from the Precambrian Era.
_____ 4. A prediction of next winter's weather is an example of
A) a measurement B) an inference C) a classification D) an observation
_____ 5. Which statement about a rock sample is an inference?
A) The rock was formed 100 million years ago. B) The rock has no visible crystals and is red.
C) A balance indicates the rock's mass is 254 grams. D) The rock scratches a glass plate.
_____ 6. Which conclusion about the relative density of a rock floating in a liquid and the liquid is true?
A) The rock and the liquid have the same density. B) The rock is less dense than the liquid.
C) The rock is more dense than the liquid. D) all of the above
_____ 7. As water cools from 4°C to 0°C, its density
A) increases B) decreases C) remains the same D) all of the above
_____ 8. What is the density of a rock which has a mass of 35 grams and a volume of 7.0 cubic centimeters?
A) 42 g/cm 3 B) 0.20 g/cm 3 C) 28 g/cm 3 D) 5.0 g/cm 3
_____ 9. In which state of matter do most Earth materials have their greatest density?
A) gas B) solid C) liquid
_____ 10. How much heat energy is released when liquid water is converted to solid ice?
A) 2260 J/g B) 334 J/g C) 2.11 J/g
D) all of the above
D) 4.18 J/g

NAME: _____________________________________________ DATE: ___________________ PD: __________
The graph shows temperatures as a sample of water was heated at a constant rate from -50°C to 100°C during a 20-minute period.
_____ 11. How long did the temperature stay at 100°C?
A) 12 minutes B) 11 minutes
C) 8 minutes D) 20 minutes
_____ 12. What state of matter is the water in between Point D and Point E?
A) gas
C) liquid
B) solid
D) plasma
_____ 13. The water temperature reached 65°C after the sample had been heated for how many minutes?
A) 9 min B) 5 min C) 7 min D) 3 min
_____ 14. Between which two points was the temperature change the greatest?
A) C and D B) B and C C) D and E D) A and B
_____ 15. Based on the graph to the left, what is the density of this mineral?
A) 30 g/cm3 B) 9.0 g/cm3 C) 6.0 g/cm3 D) 4.5 g/cm3
_____ 16. What is the volume of the mineral when its mass is 18 g?
A) 3.5 cm 3 B) 2.5 cm 3 C) 3 cm 3 D) 2 cm 3
_____ 17. What is the mass of the mineral when its volume is 1.5 cm 3 ?
A) 3 grams B) 9 grams C) 6 grams D) 12 grams
_____ 18. The statement “There are three windows.” is an example of a(n)
A) qualitative observation B) inference C) quantitative observation D) objective fact
_____ 19. The statement “I planted white roses in my garden.” is an example of a(n)
A) qualitative observation B) inference C) quantitative observation D) objective fact
_____ 20. The statement “Ms. Brown really likes cheesecake and other unhealthy foods.” is an example of a(n)
A) qualitative observation B) inference C) quantitative observation D) objective fact