ASVAB General Science Practice Test 124993 Results

Your Results Global Average
Questions 5 5
Correct 0 2.76
Score 0% 55%

Review

1

During continental drift, the drifting plates move across which of the following?

50% Answer Correctly

sediment

water

liquid mantle

fault lines
Solution

The crust and the rigid lithosphere (upper mantle) is made up of approximately thirty separate plates. These plates more very slowly on the slightly more liquid mantle (asthenosphere) beneath them. This movement has resulted in continental drift which is the gradual movement of land masses across Earth's surface. Continental drift is a very slow process, occurring over hundreds of millions of years.

2

Molecules and atoms that are inputs to a chemical reaction are known as which of the following?

63% Answer Correctly

reactants

components

products

fuel
Solution

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

3

Which of the following describes the Earth's outer core?

45% Answer Correctly

liquid

solid

makes up most of the Earth's volume

primarily solid
Solution

The Earth's core is divided into the liquid outer core (1,430 miles or 2,300 km radius) and the solid inner core (745 miles or 1,200 km radius).

4

In the Periodic Table of the Elements, atomic number is equal to which of the following?

63% Answer Correctly

number of neutrons in the nucleus

number of protons + neutrons in the nucleus

number of protons in the nucleus

number of electrons orbiting the nucleus
Solution

The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.

5

Which of these is a type of Earth's crust?

56% Answer Correctly

metamorphic

oceanic

terrestrial

sedimentary
Solution

The crust is the Earth's outermost layer and is divided into oceanic and continental types. Oceanic crust is 3 miles (5 km) to 6 miles (10 km) thick and is composed primarily of denser rock. Continental crust is 20 to 30 miles (30 to 50 km) thick and composed primarily of less dense rock. The crust makes up approximately one percent of the Earth's total volume.