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GED SCIENCE PRACTICE QUESTIONS EXAM QUESTIONS
Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -15 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: The invisible, hypothetical matter that makes up most of the universe is known as ____ matter.
Answer:
dark Question 2: The giant parts of the Earth's crust which move around on the planet's surface are ____ plates.
Answer:
tectonic
Question 3: 21% of the Earth's atmosphere is ____.
Answer:
oxygen Question 4: According to the second law of thermodynamics, the entropy of a system must always ____.
Answer:
increase (Systems always become more disordered as time increases.)
Question 5: The Milky Way is classed as a ____ galaxy.
Answer:
spiral Question 6: The transfer of heat from objects that are in direct contact with one another is called ____.
Answer:
conduction
Question 7: The water cycle involves evaporation, condensation and ____.
Answer:
precipitation
Question 8: An alpha particle is composed of two protons and _______ neutrons.
Answer:
two (An alpha particle is also a helium nucleus.)
Question 9: A _______ bond is formed when atoms share electron pairs.
Answer:
covalent
Question 10: Organic compounds always contain ____.
Answer:
Carbon Question 11: When a moving charged particle is placed in a magnetic field, its direction will
_____.
Answer:
change (The charge will feel a force, known as the Lorentz force, which will cause the particle to deviate.)
Question 12: Vitamins B and C are ____ soluble vitamins.
Answer:
water (These vitamins can be easily excreted through the urinary system.)
Question 13: A rock which is exposed to extreme heat or pressure will become a ____ rock.
Answer:
metamorphic
Question 14: 10 inches is equivalent to _____ cm.
Answer:
25.4 (1 inch is 2.54 cm)
Question 15: Microtubules are found in a cell's _____.
Answer:
cytoskeleton (Microtubules help maintain the cell's structure and are involved in many cellular processes.)
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