GED Science Practice Questions
An alpha particle is composed of two protons and _______ neutrons. correct answerstwo
(An alpha particle is also a helium nucleus.)
10 inches is equivalent to _____ cm. correct answers25.4 (1 inch is 2.54 cm)
When a moving charged particle is placed in a magnetic field, its direction will _____. correct
answerschange (The charge will feel a force, known as the Lorentz force, which will cause the particle to
deviate.)
A _______ bond is formed when atoms share electron pairs. correct answerscovalent
Microtubules are found in a cell's _____. correct answerscytoskeleton (Microtubules help maintain the
cell's structure and are involved in many cellular processes.)
Organic compounds always contain ____. correct answersCarbon
Vitamins B and C are ____ soluble vitamins. correct answerswater (These vitamins can be easily excreted
through the urinary system.)
The invisible, hypothetical matter that makes up most of the universe is known as ____ matter. correct
answersdark
The Milky Way is classed as a ____ galaxy. correct answersspiral
21% of the Earth's atmosphere is ____. correct answersoxygen
The transfer of heat from objects that are in direct contact with one another is called ____. correct
answersconduction
An alpha particle is composed of two protons and _______ neutrons. correct answerstwo
(An alpha particle is also a helium nucleus.)
10 inches is equivalent to _____ cm. correct answers25.4 (1 inch is 2.54 cm)
When a moving charged particle is placed in a magnetic field, its direction will _____. correct
answerschange (The charge will feel a force, known as the Lorentz force, which will cause the particle to
deviate.)
A _______ bond is formed when atoms share electron pairs. correct answerscovalent
Microtubules are found in a cell's _____. correct answerscytoskeleton (Microtubules help maintain the
cell's structure and are involved in many cellular processes.)
Organic compounds always contain ____. correct answersCarbon
Vitamins B and C are ____ soluble vitamins. correct answerswater (These vitamins can be easily excreted
through the urinary system.)
The invisible, hypothetical matter that makes up most of the universe is known as ____ matter. correct
answersdark
The Milky Way is classed as a ____ galaxy. correct answersspiral
21% of the Earth's atmosphere is ____. correct answersoxygen
The transfer of heat from objects that are in direct contact with one another is called ____. correct
answersconduction
