this Subject is for STEM students

1. EARTH SCIENCE

2.  Instruction: Choose the correct answer.
 _______ is also known as ordinary matter consisting of
protons, electrons, and neutrons.
 Dark Matter b. Baryonic Matter c. Dark
Energy d. Protostar
 ______ is the matter that has gravity but not emit light.
 Dark Matter b. Baryonic Matter c. Dark
Energy d. Protostar
 The Following are the most abundant elements on the
universe except:
 Hydrogen b. Helium c. Lithium
d. Oxygen

3.  Which of the following is the study of the entire
universe?
 Bryology b. Cosmology c.
Cosmetologist d. Biologist
 The name of the galaxy in which our solar system is
situated is the:
 Andromeda b. Milky Way c. Nebulae
d. Super Nova
 The distance that light travels in one year is called:
 Light year b. Light Ray c. Astronomical
Unit d. Microwave
 The redshift in the spectral lines of light, reaching us
from other galaxies implies that these galaxies___.

4.  Edwin Hubble discovered that the universe is
expanding from his observation of
 A Proto planets b. Redshift c. Steady State d.
Oscillating universe
 A scientific theory…..
 Is based on lots of evidence c. is not valid
 Is not reliable d. has not been
tested many times
 Which statement is true?
 The galaxies are moving towards us c. Universe
remains static
 The galaxies are moving away from us d. None of
the above

5.  About how long ago does scientist believe the universe
began?
 13 – 14 billion years ago c. 12 – 13 years billion
years ago
 13 – 14 million years ago d. 12 – 13 years
million years ago
 Part of the atmosphere that protects us from the direct
hit of solar radiation?
 Air b. Ozone Layer c. Gasses d. Water
 The Lithosphere is?
 All liquid water on earth c. a 100 km thick
layer of gasses
 Frozen water on earth d. earth’s entire solid

6.  The earth four subsystems are?
 Independent from one another c. All part of the
atmosphere
 All connected d. not important for
life on earth
 What is the largest subsystem?
 Biosphere b. Lithosphere c. Hydrosphere
d. Atmosphere
 Photosynthesis is an example of an interaction between
the biosphere and the:
 Biosphere b. Lithosphere c. Hydrosphere
d. Atmosphere

7.  Animals and plants needing water to survive show
which two systems?
 Lithosphere & Biosphere c. Hydrosphere &
Lithosphere
 Biosphere & Hydrosphere d. Atmosphere &
Biosphere
 What is the Earth’s outermost system?
 Biosphere b. Lithosphere c. Hydrosphere
d. Atmosphere
 Most of the earth’s water is?
 Fresh water from underground c. in the
Atmosphere
 Salt water d. in rivers and