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Praxis II Middle School Science Test Questions

1. Which of the following is a scalar quantity?

  1. velocity

  2. displacement

  3. acceleration

  4. momentum

2. Which of the following is the smallest distance?

  1. 1 nm

  2. 1 m

  3. 1 km

  4. 1 mm

3. What is a name for a substance that cannot be broken down into other substances?

  1. molecule

  2. ion

  3. compound

  4. element

4. What type of bond joins most biological molecules?

  1. peptide

  2. hydrogen

  3. ionic

  4. covalent

5. What is another name for an atom or molecule that has gained or lost electrons?

  1. polymer

  2. acid

  3. ion

  4. base

6. What kind of tissue is on the outside of the body and the lining of the internal organs?

  1. muscle

  2. nervous

  3. epithelial

  4. connective

7. In an experiment, what is the name of the variable that is manipulated by the scientist?

  1. internal variable

  2. external variable

  3. independent variable

  4. dependent variable

8. What structure controls the inflow and outflow of materials in a cell?

  1. cell membrane

  2. nucleus

  3. ribosome

  4. mitochondria

9. Which of the following is a characteristic of an aneroid barometer?

  1. its metal chamber does not respond to changes in air pressure

  2. it displays air pressure on a dial

  3. it is composed of a glass tube partially filled with mercury

  4. it contains no liquid

10. What kind of air mass forms over an ocean?

  1. maritime

  2. polar

  3. continental

  4. oceanic

11. Areas of scientific study include:

  1. Natural

  2. Social

  3. Formal

  4. All of the above

12. Scientific method is used to:

  1. Memorize data

  2. Interpret information

  3. Integrate information

  4. All of the above

13. Which step is not part of the scientific method?

  1. Question posed

  2. Research done

  3. Earlier tests are ignored

  4. Analysis

14. The unifying principles of biology include:

  1. Chemical composition

  2. Evolution

  3. Algebraic equations

  4. All of the above

15. The disciplines of physics are:

  1. Condensed matter and high energy

  2. Gene Theories

  3. Evolution

  4. All of the above

16. Which of the following is not a law of physics?

  1. Newton’s Three Laws of Motion

  2. Equivalence and Balance

  3. Laws of Thermodynamics

  4. Invariance of the Speed of Light

17. Chemistry studies matter in relation to:

  1. Evolution

  2. Entropy

  3. The environment

  4. All of the above

18. Which of the following is not a discipline in chemistry?

  1. Organic

  2. Biochemistry

  3. Molecular

  4. Analytical

19. The solar system is composed of:

  1. Igneous rock

  2. Dwarf planets

  3. Marine wildlife

  4. All of the above

20. Students studying science should be assessed on their ability to:

  1. Memorize data

  2. Communicate scientific subject matter

  3. Get good grades

  4. All of the above

Praxis II Middle School Science Test Answer Key