2. 1. The diagram above shows Earth as viewed from space. Which season is the northern hemisphere experiencing? a. Winter b. Spring c. Summer d. Autumn

3. 2. T he ocean water near the equator absorbs more heat throughout the year than ocean water near the North Pole. Which of the following best explains this difference? a. The equator is closer to the sun b. The equator has higher seal levels c. The equator receives less direct sunlight d. The equator rotates more quickly on Earth’s axis

4. 3. Texas is closer to the sun in the winter than in the summer. However, the average Texas temperatures are much colder in the winter months. Which answer represents the best explanation for this? a. Earth is tilted so that there is less direct sunlight on Texas during the winter than during the summer b. The Sun itself is not as hot during the winter as it is during the summer c. There are more particles in space that soak up the sunlight during the witner than during the summer d. Earth orbits faster during the winter than during the summer.

5. 4. Only one side of the moon faces Earth because: a. The moon does not rotate b. the moon does not revolve c. the moon rotates at the same rate it revolves d. the moon rotates twice as fast as it revolves 5. What causes the Earth’s seasons? a. tilt only b. tilt and revolution c. gravitational pull of the moon d. revolution only

6. 6. During phase Y of the lunar cycle above, the moon reflects -- a. large amounts of light b. same amount of light as in phase X c. a crescent shape of light d. little to no light

7. 7. A student observed the apparent shape of the moon every night for a period of 60 days. On DAY 10 the student observed a full moon. On which other day did the student most likely observe a full moon? a. Day 10 b. Day 30 c. Day 40 8. Using the periodic table; which elements react similarly? a. Boron & Carbon b. Carbon & Aluminum c. Boron & Aluminum d. Aluminum & Silicon

8. 9. A. D. B. C.

9. 10. Using the diagram above, The Northern Hemisphere would most likely experience winter conditions when the Earth is at - a. Position A b. Position B c. Position C d. position D 11. The diagram above, shows four possible positions of the Earth as it travels around the Sun. One complete trip of the Earth around the Sun - a. is a rotation b. is a revolution c. occurs in a day d. occurs in a season

10. 12. Sequence the phases of the moon in the order that they should occur, beginning with the new moon, H as the FIRST phase in the sequence: a. b.

11. 13. If the object Z is the earth, what is the effect of the motion indicated by the arrow? a. Days and Nights b. Months c. Years d. Seasons

12. 14. If an object starts to accelerate - a. a balanced force is acting on it b. gravity is acting on it c. velocity is acting on it d. an unbalanced force is acting on it

13. 15. The phase of the moon that could replace letter Y in the diagram is -- A. B. C. D.

14. 16. Two liquids of the same temperature are mixed in an open beaker to produce one liquid that has escaping gas bubbles. The gas produced is evidence of what event? a.Phase change b.Solution formation c.Chemical reaction d.Mixture separation

15. 17. Three students use their bodies to show how the sun, the moon, and Earth are aligned during the phases of the moon. What is ONE LIMITATION of this model? a. It cannot show the relative motion of the three objects b. It cannot be safely used in the classroom c. It cannot show how the Sun’s light affects the moon’s appearance d. it cannot be used to show the direction of Earth’s revolution

16. 18. What phase of the moon is being illustrated above? a. 1st quarter b. 3rd quarter

17. 19. According to the law of conservation of mass, how does the mass of the products in the chemical reaction shown below compare to the mass of the reactants? Reactants Products H 2 + Cl 2 2HCl a. There is no relationship. b. The mass of the products is greater. c. The mass of the reactants is greater. d. The masses are equal.

18. 20. The diagram above shows the orbit of the moon around the earth. At which point in the moon’s orbit will a person standing on earth see a waxing crescent moon? a. 1 b. 2 c. 3 d. 4

19. 21. In the following equation, what does the number 4 in 4H 2 O tell you? 2NH 4 NO 3 —> 2N 2 + O 2 + 4H 2 O a. The reaction produces 4 atoms of hydrogen. b.The NH 4 NO 3 molecule has been doubled. c.The reaction produces 4 water molecules. d.The reaction produces 4 atoms of water.

20. 22. The diagram shows one element on the Periodic Table. How many protons does a carbon atom have? a. 0.0111 b. 6 c. 12.0111 d. 18

21. 23. What is the average speed of the object? a. 0.5 meters/minute b. 2 meters/minute c. 25 meters/minute d. 50 meters/minute The graph below shows the movement of an object at several points in time.

22. ObjectMassAcceleration Soccer ball40g5m/s Tennis ball5g100m/s Marble1g1000m/s 24. Patrick collected the above data during his experiment. Based on this data, which ball would have the most force? a. Soccer Ball b. Tennis Ball c. Marble d. All would have equal force

23. Please grid your answer to the following question: 25. It takes approximately how many hours for the earth to rotate once fully around? 24