SCIENCE

Question 1

Is a reaction wherein a heavy nucleus is bombarded by neutrons and thus becomes
unstable, which causes it to decompose into two nuclei with equivalent size and
magnitude, with a great detachment of energy and the emission of two or three
neutrons.

Answer 1

NUCLEAR FISSION

Question 2

It is a nuclear process, where energy is produced by smashing together light atoms. It is
the opposite reaction to fission, where heavy isotopes are split apart

Answer 2

NUCLEAR FUSSION

Question 3

A tectonic boundary where two plates are moving toward each other.

Answer 3

CONVERGENT PLATE

Question 4

Who discovered the the table of elements in 1869?

Answer 4

Dimitri Mendeleev

Question 5

An organism that has
complete or partial reproductive organs and produces gametes normally associated with both
male and female sexes.

Answer 5

HERMAPRODITE

Question 6

Everything we can see and study directly

Answer 6

CRUST

Question 7

Everything we know about the mantle we know indirectly

Answer 7

MANTLE

Question 8

It’s generally believed that the inner core is growing very slowly – as the core cools
down, more of the outer core solidifies and becomes a part of the inner core.

Answer 8

THE INNER CORE

Question 9

A low viscosity fluid (about ten times the viscosity of liquid metals at
the surface) – “liquid” is a rather improper term.

Answer 9

THE OUTER CORE

Question 10

How old is the universe?

Answer 10

13.8 billion years

Question 11

It is the smallest component of an element that
still has the properties of that element.

Answer 11

SMALL UNIT OF ATOM

Question 12

Which planet is gigantic?

Answer 12

JUPITER

Question 13

Which planet is not a gas gigantic?

Answer 13

A gas giant is a large planet composed mostly of gases, such as hydrogen and helium, with a relatively small rocky core.

Question 14

Which planet is a gas giant?

Answer 14

Jupiter, Saturn, Uranus and Neptune.

Question 15

This is known as the law of reflection.

Answer 15

REFLECTION OF WAVES

Question 16

Involves a change in the direction of waves as they pass from one medium to another.

Answer 16

REFRACTION OF WAVES

Question 17

Involves a change in direction
of waves as they pass through an opening or around a barrier in their path.

Answer 17

DIFFRACTION OF WAVES

Question 18

all boundary behaviors of waves associated with the
bending of the path of a wave.

Answer 18

REFLECTION, REFRACTION, AND DIFFRACTION

Question 19

With the exception of hydrogen, the elements on the left-hand side of the periodic table are ___

Answer 19

METALS

Question 20

There is a zig-zag line toward the right side of the periodic table that acts as a sort of border
between metals and nonmetals.

Answer 20

METALLIODS or SENTIMENTALS

Question 21

The elements on the right-hand side of the periodic table are the ____

Answer 21

NONMETALS

Question 22

The arrangement of the periodic table organizes elements with related properties.

Answer 22

PERIODS AND GROUPS IN THE PERIODIC TABLE

Question 23

Groups are the columns of the table.

Answer 23

ELEMENT GROUPS

Question 24

The rows in the periodic table are called periods.

Answer 24

ELEMENT PERIODS

Question 25

You can use the organization of elements in the periodic table to predict how elements will form bonds with each other to form compounds.

Answer 25

CHEMICAL BONDING TO FORM COMPOUNDS

Question 26

Form between atoms with very different electronegativity values.

Answer 26

IONIC BONDS

Question 27

This type of bond forms between nonmetal atoms.

Answer 27

COVALENT BONDS

Question 28

Metals also bond to other metals to share valence electrons in what becomes an electron sea surrounding all the affected atoms.

Answer 28

METTALIC BONDS

Question 29

What is the softest mineral?

Answer 29

Talc Mg3Si4O10 (OH)2

Question 30

"A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force."

Answer 30

FIRST LAW OF MOTION

Question 31

"The force acting on an object is equal to the mass of that object times its acceleration."

Answer 31

SECOND LAW OF MOTION

Question 32

"For every action, there is an equal and opposite reaction."

Answer 32

THIRD LAW OF MOTION

Question 33

What are the three different tiny particles that make up an atom?

Answer 33

PROTONS, NEUTRONS, AND ELECTRONS

Question 34

Which of these is in the center of the atom?

Answer 34

PROTONS AND NEUTRONS

Question 35

What zooms around the nucleus of an atom?

Answer 35

ELECTRONS

Question 36

Which one has a positive charge, a negative charge, and no charge?

Answer 36

Proton—positive; electron—negative; neutron—no charge

Question 37

Are a type of subatomic particle with a negative charge.

Answer 37

ELECTRONS

Question 38

Are a type of subatomic particle with a positive charge.

Answer 38

PROTONS

Question 39

Are a type of subatomic particle with no charge (they're neutral).

Answer 39

Neutrons

Question 40

the cup-shaped depression or cavity on the surface of the earth or other heavenly body marking the orifice of a volcano.

Answer 40

CRATER

Question 41

How to tell if a flower is complete or incomplete?

Answer 41

A flower that is missing male or female parts is an imper- fect flower. Plants may have flowers that are complete or incomplete. If a flower has sepals, petals, pis- tils, and stamens, it is a complete flower.

Question 42

A periodic disturbance that moves away from a source and carries energy with it.

Answer 42

WAVE

Question 43

Refers to the distance between any successive identical parts of the wave.

Answer 43

WAVELENGHT OF A WAVE

Question 44

a series of periodic waves is the number of waves that pass a particular point every one second.

Answer 44

FREQUENTCY OF A WAVE

Question 45

This is a wave wherein the particles of the medium move in the direction that is perpendicular to that of the wave.

Answer 45

TRANSVERSE WAVE

Question 46

One that moves parallel to the direction of waves of particles in motion.

Answer 46

LONGITUDINAL WAVE

Question 47

Periodic changes occur in electric and magnetic fields

Answer 47

ELECTROMAGNETIC WAVES

Question 48

Also termed as De Broglie waves.

Answer 48

MATTER WAVES

Question 49

carries the genetic information in all living organisms.

Answer 49

DNA

Question 50

is a protein molecule that catalyzes biochemical reaction.

Answer 50

Enzyme

Question 51

a single stranded type of nucleic acids that is mostly involved in protein synthesis.

Answer 51

RNA

Question 52

(also called genetic modification) is a process that uses laboratory-based technologies to alter the DNA makeup of an organism. Artificial manipulation, modification, and recombination of DNA or other nucleic acid molecules in order to modify an organism.

Answer 52

Genetic Engineering

Question 53

is the molecule that carries genetic information for the development and functioning of an organism. (Blueprint of Life)

Answer 53

Deoxyribonucleic Acid

Question 54

The technology used for producing artificial DNA through the combination of different genetic materials (DNA) from different sources.

Answer 54

Recombinant DNA Technology

Question 55

breeding involves selecting a parent that have characteristics of interest in the hope that their offspring inherit those desirable characteristics.

Answer 55

Classical breeding

Question 56

Different version of a gene resulting in contracting effect on a characteristic, e.g. tallness and shortness.

Answer 56

ALLELES

Question 57

Genes are made up of sequences of DNA and are arranged, one after another,at specific locations on chromosomes in the nucleus of cells.

Answer 57

GENE

Question 58

Observable characteristics of an individual with respect to the gene.

Answer 58

PHENOTYPE

Question 59

Allele processed by an individual for a particular gene.

Answer 59

GENOTYPE

Question 60

An individual with 2 different alleles for a gene.

Answer 60

HETEROZYGOUS

Question 61

An individual with identical alleles for a gene; also called PURE BREED.

Answer 61

HOMOZYGOUS

Question 62

One allele dominant trait in a pair may mask the other (recessive trait) preventing the other from having an effect.

Answer 62

Principle of Dominance

Question 63

Each allele pair segregates independently of other allele pairs.

Answer 63

Law of Independent Assortment

Question 64

Allele for a character is segregated into different gametes

Answer 64

Law of Segregation

Question 65

organisms made up of cells that possess a membrane-bound nucleus that holds genetic material as well as membrane-bound organelles.

Answer 65

Eukaryotes

Question 66

organisms made up of cells that lack a cell nucleus or any membrane-encased organelles.

Answer 66

Prokaryotes

Question 67

"geosphere"

Answer 67

land

Question 68

"hydrosphere"

Answer 68

water

Question 69

"biosphere"

Answer 69

living things

Question 70

"atmosphere"

Answer 70

air

Question 71

The comparison of an unknown quantity with a known standard of the same nature.

Answer 71

Measurement

Question 72

is a physical quantity that has only a magnitude (size)

Answer 72

scalar

Question 73

is a physical quantity that has both magnitude and a direction.

Answer 73

vector

Question 74

•an object that is falling under the sole influence of gravity. • Regardless of how light of heavy an object is , its velocity will increase by 9.8 m/s after every second.

Answer 74

FREE FALL

Question 75

can be demonstrated by objects or bodies whose position, velocity and acceleration moves along a straight line

Answer 75

RECTILINEAR MOTION

Question 76

•Vector quantity • The measure of an objects position relative to a reference point from the initial position to the final position

Answer 76

DISPLACEMENT

Question 77

•Scalar quantity • The total path taken or traveled by an object

Answer 77

DISTANCE

Question 78

concerned with how motions are affected by forces that act on objective

Answer 78

DYNAMICS

Question 79

Study of motion of points, objects, and groups of objects without considering of its motion

Answer 79

KINEMATICS

Question 80

is the field of physics dealing with the effects of forces on an object.

Answer 80

MECHANICS

Question 81

are organisms made up of cells that possess a membrane-bound nucleus that holds genetic material as well as membrane-bound organelles.

Answer 81

Eukaryotes

Question 82

are organisms made up of cells that lack a cell nucleus or any membrane-encased organelles.

Answer 82

Prokaryotes

Question 83

• Formed under conditions of heat and pressure similar to the environment in which igneous rocks are formed. They change while the rock is still solid. • Formed below the surface of the earth through the process of metamorphism with the recrystallization of minerals in rocks due to changes in pressure and temperature conditions.

Answer 83

METAMORPHIC ROCK

Question 84

• Formed by the cooling and crystallization of hot, molten rock material called magma. Igneous means “formed by fire”. It makes up about 95% of the Earth’s crust. • Differentiating magma and lava. Magma is a molten rock material beneath the surface of the earth. Lava is molten rock material extruded to the surface of the earth through a central vent (volcano) or as fissure eruption.

Answer 84

IGNEOUS ROCK

Question 85

The most common in the uppermost portion of the crust. These rocks account for about 75% of the rocks on the surface. • Sedimentary rocks are formed when weathered products are transported by running water and later deposited in the ocean where it is lithified. (compaction and cementation). • formed from pre-existing rocks or pieces of once living organisms.

Answer 85

SEDIMENTARY ROCK