Praxis Middle School Science (5440): Practice & Study Guide Final Exam

Free Practice Test Instructions:

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

Question 1 1. A student finds that for a particular buffer solution, Ka = 4.54 x 10-6 and [H+] = 8.25 x 10-6. What's the pH of the solution?

Question 2 2. In humans, which of the following is considered the 'male hormone?'

Question 3 3. What is the frequency of a wave?

Question 4 4. A scientist is performing an experiment with an electrochemical cell, and notices a chemical process taking place at the anode, whereby electrons are lost. What chemical process is the scientist observing?

Question 5 5. What is the equilibrium expression?

Question 6 6. Two dinosaurs, one small and one large, both die in similar conditions and are both rapidly buried in the same material. Which dinosaur is more likely to be preserved as a fossil?

Question 7 7. Which of the following stars will have the shortest life?

Question 8 8. How does the Bohr Model differ from the Rutherford model?

Question 9 9. Which of the following defines osmosis?

Question 10 10. What is the definition of pressure?

Question 11 11. Energy that can be collected from sources that are naturally replenished (such as sunlight, wind, rain, ocean waves, etc.) without human intervention is called _____.

Question 12 12. If the theoretical yield of a reaction is 20 g and the actual yield is 15 g, what is the percent yield of the reaction?

Question 13 13. Which of the following best defines an autotroph?

Question 14 14. Which scientist studied genetics using pea plants?

Question 15 15. What kind of front is a cold-warm-cold sandwich?

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Praxis Middle School Science (5440): Practice & Study Guide Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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