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! 

According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail-
It is a special area of the atmosphere that protects the Earth from harmful ultraviolet rays emitted by the sun.
The human body has 23 homologous pairs of chromosomes. How many chromosomes does a somatic cell have?
The Earth's diameter is approximately how many kilometers?
Isotopes of an element contain same number of:
The existence of microorganisms in the human gastric system is an example of:
Radioactivity is a phenomenon of the spontaneous emission of:
What is the curved path that an object follows when thrown or launched near the surface of the Earth?
Detergents used for cleaning clothes and utensils contain?
Who formulated the geocentric theory?
How many valence electrons do elements in group 17 have in their outer energy level?
If a car is rolling down a ramp, the force between the tires and the ramp is an example of:
Alex wants to mix two substances together and to find out if a chemical reaction happens. What should he do?
Your rocket eventually reaches an altitude of approximately 1,000 km (620 mi) above the Earth's surface. Here you will reach an area where belts of radiation surround the Earth. What are these belts called?
Rate of change of velocity is called:
Which of the following is true about the kingdom Bacteria?
Which particle contributes the negative charge to the atom?
Natural radioactivity was discovered by:
Sandra was burning a vanilla candle. Was there a chemical reaction?
The group number tells us how many _________ there are in an element.
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?
A student mixes apple juice, water, and cinnamon together. Did a chemical reaction occur?
Smoke is an example of a _____ because its suspended particles are just small enough not to layer out.
Which two substances can be mixed together to form a new substance through a chemical reaction?
Vitamin D can be obtained from _______________.
A body is taken from the earth to the moon:
Optic fibers are mainly used for which of the following?
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
What is the greenhouse effect?
A force is a ____________________
A battery operated DVD player uses 12 volts from AA batteries and draws a current of 3 amperes. What is the resistance?
Metamorphic rock can form from:
Kepler's second law or the equal area law states that the closer a planet is to the sun the ________ it travels.
Where are earthquakes most likely to occur?
Which layer of Earth has the GREATEST density and is solid?
Which of the following properties of water enables it to move from the roots to the leaves of plants?
Which rock will most likely contain fossils?
In animals, sexual reproduction depends on the production of gametes. Which of the following processes produces gametes in animals?
Organisms in temperate zones are able to time their activities to cues given by the photoperiod, since:
Which is/are the important raw material(s) required in cement industry?
The flower of a plant is involved in reproduction. Which parts are male and which are female?
Ptyalin is an enzyme produced in the:
Which one of the following is a source of methane emission into the atmosphere?
Scientists once thought that the continents had formed in their current locations. Alfred Wegener first published this theory of continental drift in 1915. Which of the following provides evidence for continental drift?
Why should we wear light colored clothes during summer?
Nucleotides are made up of a sugar, phosphate, and..?
The hardest form of carbon is?
The diagram shows two types of movements of Earth's crust. What feature of the ocean floor develops in the region labeled A?
Which component of a nucleotide contains the information needed to make proteins?
Distillation is the process of separating liquids by using _____.