ASVAB Practice Test – General Science (Multiple Choice)

A vascular plant absorbs water from its roots and circulates the water to its stems and leaves. A nonvascular plant absorbs water through its surfaces.

The scientific method is a process for experimentation that utilizes extensive background research, multiple iterations of experiments based on the conclusions drawn from past experiments, and the eventual communication of validated results.

The correct order is Crust, Mantle, Outer Core, Inner Core.

Taiga is the Russian word for forest and is the largest biome in the world. Existing just below the Tundra biome in the Northern Hemisphere, it’s characterized by cold and lonely expanses of boreal forest filled with evergreen trees.

Radiation is the transfer of energy to or from a body by means of the emission or absorption of electromagnetic radiation.

Cell division and reproduction can occur in two ways – through mitosis or meiosis. Mitosis is a process of cell duplication during which one cell gives rise to two genetically identical daughter cells. Mitosis is used by single celled organisms to reproduce and is also used for the organic growth of tissues, fibers, and membranes. The function of Meiosis is sexual reproduction and it only occurs in humans, animals, plants, and fungi. After division, the resulting cells are genetically different and it’s possible that they can mix chromosomes.

The Mesozoic Era was from between 251 million and 65 million years ago and was when dinosaurs were dominant.

Jupiter, Saturn, Uranus, and Neptune are the four planets in our solar system that have rings.

In the periodic table, elements are arranged by order of atomic number which is the number of protons in the nucleus.

Sound travels in regular longitudinal waves away from the source. Frequency is a measure of how many wave cycles occur per second, wavelength is a measure of the distance between corresponding points on adjacent wave cycles, and amplitude is the maximum height (strength) of the wavelength above the mean value of the wave.

The correct order by increasing distance from the Sun is : Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto which makes Mars, Jupiter, Saturn the correct answer.

The inner core of the Earth makes up less than 2% of the Earth’s mass and is solid made primarily of nickel and iron. It is suspended by a liquid outer core that is also made primarily of nickel and iron and has a temperature approaching that of the sun. The outer core is more massive than the inner core making up approximately 30% of the Earth’s mass and its motion is responsible for the Earth’s magnetic field. Together, the inner and outer core are approximately 1,400 miles across.

Kinetic energy is energy possessed by an object due to its motion or movement.

Flat, layered clouds are stratus clouds, cumulus clouds have elongated tall shapes, cirrus clouds are striped, wispy, high-altitude clouds, and cumulonimbus clouds are thunderstorm clouds.

An anemometer is used to measure wind speed.

The scientific method is a process for experimentation that utilizes extensive background research, multiple iterations of experiments based on the conclusions drawn from past experiments, and the eventual communication of validated results.

Herbivores are primary consumer plant-eaters that feed on the organisms that make up the bottom of the food chain. Herbivores feed secondary consumer omnivores and carnivores.

Organelles are specialized parts of a cell that perform functions necessary for the cell’s survival. Examples of organelles are the cell nucleus and mitochondria.

Taiga is the Russian word for forest and is the largest biome in the world. Existing just below the Tundra biome in the Northern Hemisphere, it’s characterized by cold and lonely expanses of boreal forest filled with evergreen trees.

A taproot system has one sturdy main root with just a few branching roots while a fibrous root system has many branched roots.

The scientific method is a process for experimentation that utilizes extensive background research, multiple iterations of experiments based on the conclusions drawn from past experiments, and the eventual communication of validated results.

Only plant cells have cell walls.

An anemometer is used to measure wind speed.

Symbiosis is any relationship between individuals of different species where both individuals benefit. Commensalism describes a relationship where one species benefits and the other is not significantly affected. In amensalism, one species is harmed and the other is not significantly affected and parasitism is a relationship where one species benefits and the other is harmed.

The order of biological classifications from the most broad to the narrowest is: Life > Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species.

Deciduous trees lose their leaves in the winter while evergreen trees keep their leaves or needles throughout the year.

The proper order of the food chain from bottom to top is: Primary producer, Primary consumer, Secondary consumer, Tertiary consumer, Quaternary consumer.

The symbol for carbon dioxide indicates that there is one atom of carbon (C) and two atoms of oxygen (O2) for a total of 3 atoms in each molecule of CO2. Therefore, there are 7 x 3 = 21 atoms in 7 molecules of CO2.

Only a certain amount of solute can be dissolved by a solvent into a stable solution. This limit is called the saturation point. Unsaturated solutions contain less than the maximum amount of solute while supersaturated solutions contain more than the maximum which makes them unstable. When disturbed, supersaturated solutions undergo a process called precipitation in which all the excess solute settles out of the solution.

pH is a measure of the relative acidity or alkalinity of a solution based on the concentration of hydrogen ions. It ranges from 0 to 14 with values less than 7 being considered acids and values higher than 7 labeled as alkalis. The middle value, 7, is considered neutral and is the pH measure of pure distilled water.