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  • 1. 

    Which organisms belong to the same food chain?
    • A. 

      Clover, mouse, rabbit, owl

    • B. 

      Wheat, grasshopper, hawk

    • C. 

      Clover, dandelion, caterpillar, frog

    • D. 

      Wheat, mouse, snake, owl


  • 2. 
    SUN -> STRANGLER -> FIG -> CATERPILLAR -> LIZARD -> HARPY EAGLE What would happen if pesticides drastically reduced the number of caterpillars in this food chain?
    • A. 

      The strangler fig population would be unaffected; the lizard population would increase.

    • B. 

      The lizard population would remain the same; the strangler fig population would decrease.

    • C. 

      The strangler fig population would increase; the lizard population would decrease.

    • D. 

      The lizard population would adapt to eating the strangler fig.


  • 3. 
    Water, sunlight, and soil are ____________________ factors in an ecosystem.

  • 4. 
    Acquired or learned behaviors can not be passed on genetically. Which of the following is NOT an inherited trait?
    • A. 

      The flavor of a fruit

    • B. 

      Ability of a skunk to spray

    • C. 

      Shape of nose

    • D. 

      Ability to read


  • 5. 
    The Milky Way is an example of a galaxy with a _______________.
    • A. 

      Globular

    • B. 

      Irregular

    • C. 

      Spiral

    • D. 

      Elliptical


  • 6. 

    Where on the diagram should the student place the moon to accurately show its position relative to the Earth and the sun during a full moon?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4


  • 7. 
    Which of the following is an example of a chemical reaction?
    • A. 

      Tearing

    • B. 

      Evaporating

    • C. 

      Baking

    • D. 

      Coloring


  • 8. 
    Bees and flowers are abiotic factors in an ecosystem. _________________________
    • A. 

      True

    • B. 

      False


  • 9. 
    Decomposers obtain energy by breaking down wastes and the remains of dead organisms. _________________________
    • A. 

      True

    • B. 

      False


  • 10. 
    Second-level consumers may be either carnivores or omnivores. _________________________
    • A. 

      True

    • B. 

      False


  • 11. 
    The Sun provides radiant energy to ____________, which converts the suns energy to glucose and oxygen.

  • 12. 

    Based on the diagram above, which of the following is a major producer of energy in this ecosystem?
    • A. 

      Owl

    • B. 

      Mouse

    • C. 

      Grass

    • D. 

      Mushroom


  • 13. 

    Which statement best describes a relationship shown by this energy pyramid?
    • A. 

      The rabbits are secondary consumers in this energy pyramid

    • B. 

      The grass is a primary consumer in this energy pyramid

    • C. 

      Only the coyote is dependent on the rabbits for energy

    • D. 

      Only the rabbits are dependent on grass for energy


  • 14. 

    Refer to the diagram above. Which of the following is the MOST important energy source for grass in this ecosystem?
    • A. 

      Hydrogen (H)

    • B. 

      Sunlight

    • C. 

      Carbon (C)

    • D. 

      Oxygen (O)


  • 15. 
    A wheeled cart is moving eastward at a speed of 1 meter per second when it is acted on by a 30-newton force to the north and a 30-newton force to the south. Which of the following BEST explains why the cart’s speed and direction stay the same?
    • A. 

      The new forces are perpendicular to the main force.

    • B. 

      The new forces are balanced.

    • C. 

      The new forces are smaller than the main force.

    • D. 

      The new forces are in opposite directions.


  • 16. 

    Two dogs are pulling on opposite ends of a rope. The dog on the left is pulling with a force of 25 newtons. The dog on the right is pulling with a force of 60 newtons. What will be the resulting motion?
    • A. 

      The dogs will move toward the right.

    • B. 

      The dogs will move toward the left.

    • C. 

      The dogs will not move.

    • D. 

      Both dogs will move in the direction that they are pulling.


  • 17. 

    Like the one below, chemical equations must be balanced. This shows that
    • A. 

      the atoms on the reactant side are changed into different atoms on the products side.

    • B. 

      the chemical reaction is not reversible.

    • C. 

      the chemical reaction is reversible.

    • D. 

      The number of atoms in the reactants is equal to the number of atoms in the product.


  • 18. 

    In the chemical reaction between hydrochloric acid () and calcium carbonate (), which of the following elements cannot be part of the products?
    • A. 

      Carbon (C)

    • B. 

      nitrogen (N)

    • C. 

      Chlorine (Cl)

    • D. 

      hydrogen (H)


  • 19. 
    Which element on the periodic table has physical properties MOST similar to the physical properties of chlorine?
    • A. 

      Sodium

    • B. 

      Oxygen

    • C. 

      Carbon

    • D. 

      Florine


  • 20. 

    The diagram below illustrates the basic structure of an atom. What is wrong with the diagram?
    • A. 

      Neutrons should have a positive charge.

    • B. 

      Electrons are found outside the nucleus.

    • C. 

      Protons should have a negative charge.

    • D. 

      Neutrons are not found in the nucleus.


  • 21. 
    Xenon is a gas at room temperature. Because of the arrangement of the periodic table, which other element can BEST be predicted to share this physical property?
    • A. 

      Potassium

    • B. 

      Rubidium

    • C. 

      iodine

    • D. 

      krypton


  • 22. 
    Which of the following determines the identity of an element?
    • A. 

      atomic number

    • B. 

      mass number

    • C. 

      Atomic mass

    • D. 

      Overall change


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