ASVAB General Science Practice Test 52131 Results

Your Results Global Average
Questions 5 5
Correct 0 2.85
Score 0% 57%

Review

1

Molecules and atoms that are outputs from a chemical reaction are known as which of the following?

56% Answer Correctly

products

reactants

results

side effects
Solution

During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).

2

What part of the nervous system controls simple reflexes?

54% Answer Correctly

cerebrum

autonomic

spinal cord

medulla
Solution

The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.

3

The coldest point in the Earth's atmosphere is reached in which atmospheric layer?

53% Answer Correctly

thermosphere

troposphere

mesosphere

stratosphere
Solution

In the mesosphere, temperature again drops as altitude increases until the coldest point in the Earth's atmosphere, the mesopause, is reached where temperatures fall to −225 °F (−143 °C).

4

Water freezing or boiling is an example of which of the following?

80% Answer Correctly

heating

cooling

phase transition

sublimation
Solution

A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.

5

Neurons are part of the __________ nervous system.

42% Answer Correctly

somatic

autonomic

peripheral

central
Solution

The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.