General Science (DOST Reviewer)

This General Science Practice Test is comprised of 50 random questions from General Biology, Chemistry, Physics, and Earth Science that will test your ability in accomplishing various important scientific tasks. Please read the questions carefully and choose the correct answer from the choices below. The correct answer will be marked green, otherwise, red. After answering all the questions, share it on Facebook to view the results. Good luck! 

The lithosphere combines what two layers?
Isotopes of an element contain same number of:
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
Smoke is an example of a _____ because its suspended particles are just small enough not to layer out.
Carbon dioxide is called a greenhouse gas because:
The roller coaster has the most kinetic energy at position-
Which rock will most likely contain fossils?
It is a special area of the atmosphere that protects the Earth from harmful ultraviolet rays emitted by the sun.
Ptyalin is an enzyme produced in the:
Any force that causes an object to move in a circle is called a(n)
The current explanation for the geologic processes behind the Ring of Fire is that large pieces of the Earth's surface, called plates, are moving around. What is the name for the field of study which investigates this motion?
What happens when two forces act in the same direction?
Who formulated the geocentric theory?
Which particle contributes the negative charge to the atom?
Natural radioactivity was discovered by:
A woman lifts 20 bricks, each of weight 6N. What other information is needed to calculate the useful work done in lifting the bricks?
What level does the mice primarily eat in?
If a car is rolling down a ramp, the force between the tires and the ramp is an example of:
Optic fibers are mainly used for which of the following?
Radioactivity is a phenomenon of the spontaneous emission of:
When velocity is doubled:
A student mixes apple juice, water, and cinnamon together. Did a chemical reaction occur?
Sandra was burning a vanilla candle. Was there a chemical reaction?
The force of __________________ is a type of friction that works against the motion of falling objects.
The gas used for artificial ripening of green fruit is:
Which statement is correct?
Which occurs when atoms link together in new ways to create a substance different from the original substances?
The weight of a body is:
Which correctly places the stages of mitosis in order?
Sound of frequency below 20 Hz is called:
During summer, we feel comfortable under a fan because it:
Most of the mass in an atom is made up of _____________________?
In vulcanization, natural rubber is heated with:
How many valence electrons do elements in group 17 have in their outer energy level?
Rate of change of velocity is called:
Deep blue color is imparted to glass by the presence of:
The diagram shows two types of movements of Earth's crust. What feature of the ocean floor develops in the region labeled A?
One should not connect a number of electrical appliances to the same power socket because:
According to Newton’s third law of motion, the strength of a reaction force is ____________________ the strength of the action force.
The universal law of gravitation was propounded by:
Distillation is the process of separating liquids by using _____.
A force is a ____________________
Which is/are the important raw material(s) required in cement industry?
Alex wants to mix two substances together and to find out if a chemical reaction happens. What should he do?
The Earth's diameter is approximately how many kilometers?
According to the law of conservation of momentum, when two objects collide in the absence of outside forces,
Which one of the following is a source of methane emission into the atmosphere?
The mass number of a nucleus is:
In animals, sexual reproduction depends on the production of gametes. Which of the following processes produces gametes in animals?
One finds it more difficult to walk on ice than on a concrete road because: