question

chemical energy is converted into _____________ your brain uses to thnk

answer

electrical energy

question

the 2 glands located on top of each kidney; also called "emergency glands"

answer

adrenal glands

question

depressant that has anesthetic effect on the nervous system

answer

alcohol

question

are building blocks of matter, the smallest particle of an element

answer

atom

question

refers to the total number of protons and neutrons in the nucleus of an atom

answer

atomic mass

question

a pair of stars that exist together; they appear as one star when seen from earth

answer

binary stars

question

is the property of a material to be easily broken into pieces

answer

brittleness

question

is heating the food and sealing it in a sterile airtight container

answer

canning

question

the basic structural and functional unit of all living things

answer

cell

question

an outward force that pulls an object away from the center of rotation

answer

centrifugal force

question

an inward force that keeps an object moving in a circle

answer

centripetal force

question

the part of the brain which controls all voluntary muscular movements

answer

cerebellum

question

the part of the brain which controls all conscious and thinking activities

answer

cerebrum

question

is an attractive force that holds atoms and ions together

answer

chemical bond

question

is the energy stored in matter due to the arrangement of atoms in the molecules of substances

answer

chemical energy

question

is adding chemicals to food to enhance flavor, provide color, improve nutrition, protect food against microorganisms and oxygen and to adjust acidity or tartness

answer

chemical preservation

question

is the branch of science that studies matter, its composition and the changes it undergoes under different conditions

answer

chemistry

question

the flow of nutritive fluids, gases waste materials and water in the body

answer

circulation

question

the clashing of 2 bodies in a certain place or space

answer

collision

question

a material composed of two or more elements that are chemical combined in definite proportions

answer

compound

question

is the movement of energy from a source to an object by direct contact between them

answer

conduction

question

groups of stars that form patterns

answer

constellations

question

the crusts on which the continents are located

answer

continental plates

question

is the transfer of heat energy when a large mass of liquid or gas with a different temperature moves from one place to another.

answer

convection

question

the innermost part of the earth, believed to be consisting of molten iron.

answer

core

question

is sharing electrons between two atoms

answer

covalent bond

question

the outer layer of the earth on which man lives; it varies in depth.

answer

crust

question

organisms that decompose matter

answer

decomposers

question

is the amount of matter in a given volume of an objects

answer

density

question

is used in getting the volume of irregularly shaped objects by immersing it in water and the amount of water that overflows is measured

answer

displacement method

question

is the ability of a material to be drawn into a fine wire without breaking

answer

ductility

question

the study of the interactions of living organisms with their environment

answer

ecology

question

is the ability of a material to return to its original shape and size after it has been stretched, twisted or compressed

answer

elasticity

question

is produced by the movement of electrons

answer

electrical energy

question

are the basic kinds of matter; they are substances that cannot be broken up into simpler form by ordinary chemical methods.

answer

elements

question

ductless glands that discharge their secretions directly into the bloodstream

answer

endocrine glands

question

is the capacity to do work

answer

energy

question

the red corpuscles or red blood cells

answer

erythrocytes

question

the minimum speed a spacecraft much reach to overcome the pull of gravity

answer

escape velocity

question

a systematic way of obtaining information to confirm a hypothesis

answer

experimentation

question

a prediction beyond the range of observable data

answer

extrapolation

question

are the characteristics of a substance which describes its outside appearance

answer

extrinsic properties

question

the union of the ovum and the sperm

answer

fertilization

question

is the ability of matter to be rolled or bent without breaking

answer

flexibility

question

the repeated transfer of chemical energy in food through a series of organisms by eating and being eaten

answer

food chain

question

the repeated process of using food substances by living organisms

answer

food cycle

question

a schematic or quantitative representation of a food chain with the food producers forming at the base and top consumers at the apex

answer

food pyramid

question

an overlapping system of food dependency

answer

food web

question

a cluster of stars, constellations and nebulae

answer

galaxy

question

is the resistance of a material from being scratched easily

answer

hardness

question

results from the rapid movement of molecules in matter

answer

heat energy

question

they are the internal secretions produced by the endocrine glands

answer

hormones

question

produces electricity by waterpower

answer

hydroelectric power

question

means that things cannot be on the same spot at the same time

answer

impenetrability

question

is the tendency of matter not to move unless it is moved by some outside force; also the tendency of matter to keep moving until stopped by an outside force.

answer

inertia

question

the space between planets

answer

interplanetary space

question

a prediction within the range of given data

answer

interpolation

question

are permanent characteristics of a substance which are inherent in the material itself.

answer

intrinsic properties

question

electrons are transferred from atom to atom

answer

ionic bonds

question

is the energy possessed by moving objects

answer

kinetic energy

question

the white corpuscles or white blood cells

answer

leucocytes

question

the distance traveled by light in one year; = to 9.46 km

answer

light year

question

is the ability of materials to be hammered or pounded into tin sheets or beaten into various shapes without breaking

answer

malleability

question

the layer which surrounds the core of the earth; made up of a thick layer of rocks

answer

mantle

question

is the amount of matter in an object which is measured in grams or kilograms

answer

mass

question

is anything that occupies space and has mass and weight

answer

matter

question

is energy shown in moving objects which when applied to another object will cause it to move

answer

mechanical energy

question

the part of the brain which controls the involuntary muscles of the heart, intestines, stomach, diaphragm, etc.

answer

medulla oblongata

question

is the sharing of electrons of many atoms

answer

metallic bond

question

a combination of 2 or more materials physically combined and can be separated by ordinary means

answer

mixtures

question

are the units that contain 2 or more atoms, which are constantly moving

answer

molecules

question

highly dangerous drugs that affect the mind; often addictive and in large doses can cause stupor, coma or death

answer

narcotics

question

a process where nitrogen gas from the atmosphere is fixed in the soil or roots of leguminous plants as nitrogen compounds for plants to use

answer

nitrogen-fixation

question

energy resources that cannot be replaced quickly once they are used up

answer

non-renewable

question

is energy released from the nucleus of an atom

answer

nuclear energy

question

produces nuclear energy by splitting the nuclei of heavy atoms into fragments

answer

nuclear fission

question

produces nuclear energy by combining the nuclei of light elements to form heavier and more stable nuclei

answer

nuclear fusion

question

the gland that has a special group of cells, the islet of Langerhans, which secretes the hormone insulin.

answer

pancreas

question

hormone secreted by the gland pancreas, which enables the liver to store sugar as glycogen and oxidize sugar efficiently

answer

insulin

question

the gland that secretes a hormone which controls the metabolism of calcium and phosphorus

answer

parathyroid gland

question

is the process of killing bacteria by heating food at 60?-66?C for 30-40 minutes and cooking it immediately

answer

Pasteurization

question

is a chart, which shows the many facts about elements and their atoms

answer

periodic table

question

the liquid part of the blood

answer

plasma

question

synthetics that can be pressed, melted or molded into any desired shape

answer

plastics

question

is the ability to absorb or hold much water or liquid

answer

porosity

question

is stored energy

answer

potential energy

question

foretelling the probable outcome or result

answer

predicting

question

plants that provide food for the community

answer

producers

question

states that the universe expanded from a ball of matter

answer

pulsating theory

question

comes in the form of light, infrared and ultraviolet rays, x-ray, radio waves and cosmic rays

answer

radiant energy

question

is the transfer of energy through waves

answer

radiation

question

is the simplest nervous reaction

answer

reflex action

question

is keeping food at low temperature where microorganisms become less active

answer

refrigeration

question

is the property of materials to be dissolved in liquid

answer

solubility

question

is the material being dissolved

answer

solute

question

is the dissolving medium

answer

solvent

question

is produced by vibrating objects

answer

sound energy

question

the region beyond the Earth's atmosphere

answer

space

question

an unmanned device sent out to explore space

answer

space probe

question

a reusable space vehicle which takes off like a rocket and lands like an airplane

answer

space shuttle

question

an orbiting spacecraft designed to be occupied by teams of astronauts and cosmonauts over long periods.

answer

space station

question

the measure of how fast an object moves

answer

speed

question

a huge shining ball in space that produces a tremendous amount of light and energy

answer

star

question

states that the universe had a beginning and it will have no end

answer

steady-state theory

question

an exploding star

answer

supernova

question

elements which are created in laboratories because they are not found in nature

answer

synthetic elements

question

are artificially prepared materials by putting together new compounds

answer

synthetics

question

are heated until they are soft then molded and cooled

answer

thermoplastic plastics

question

are placed in molds where heat and pressure are applied until the plastic set hardens

answer

thermosetting plastics

question

the gland that produces the hormone thyroxin which regulate the rate of metabolism

answer

thyroid gland

question

the measure of how fast an object moves towards a particular direction

answer

velocity

question

is the amount of space that an object occupies which is expressed in cubic units

answer

volume

question

is the pull of gravity on an object which is expressed in Newton or dyne

answer

weight

question

the change in velocity during a given period of time

answer

acceleration

question

type of precipitation like rain or snow; contains compounds that result from the reaction of oxides of sulfur, nitrogen and carbon with water

answer

acid rain

question

a volcano that has shown frequent eruptions with recent history

answer

active volcano

question

the mixture of gases that surrounds the earth

answer

air

question

the force that air exerts on a surface

answer

air pressure

question

a weather instrument that indicates wind speed

answer

anemometer

question

a living thing that cannot manufacture its own food; depends on plants for food

answer

animal

question

the brightness of a star that depends on its distance from the observer

answer

apparent brightness

question

a blood vessel that carries blood away from the heart

answer

artery

question

a rock layer in the lithosphere that may be characterized as weak, soft, and plastic-like

answer

asthenosphere

question

the belief that heavenly bodies have a great influence on human lives

answer

astrology

question

the air part of the earth

answer

atmosphere

question

the smallest particle of an element

answer

atom

question

the slender extension of a neuron that carries nerve impulses away from a cell body

answer

axon

question

forces that do not cause a change in an object's state of motion; the net force that acts on the object is zero

answer

balanced forces

question

a weather instrument that measures air pressure

answer

barometer

question

the ability of a material to be broken down into simpler forms by the action of microorganisms

answer

biodegradability

question

the living part of the earth; made up of plants and animals

answer

biosphere

question

the ratio of the number of births to the total population in a specified community during a given period of time

answer

birthrate

question

a cold, dark star that results when a white dwarf has totally lost its energy

answer

black dwarf

question

the pressure exerted by the blood upon the walls of blood vessels and especially the arteries.

answer

blood pressure

question

the air part of the earth

answer

atmosphere

question

the smallest particle of an element

answer

atom

question

the slender extension of a neuron that carries nerve impulses away from a cell body

answer

axon

question

forces that do not cause a change in an object's state of motion; the net force that acts on the object is zero

answer

balanced forces

question

a weather instrument that measures air pressure

answer

barometer

question

the ability of a material to be broken down into simpler forms by the action of microorganisms

answer

biodegradability

question

the living part of the earth; made up of plants and animals

answer

biosphere

question

the ratio of the number of births to the total population in a specified community during a given period of time

answer

birthrate

question

a cold, dark star that results when a white dwarf has totally lost its energy

answer

black dwarf

question

the pressure exerted by the blood upon the walls of blood vessels and especially the arteries.

answer

blood pressure

question

the circular depression formed whether by explosion or collapse of a volcano

answer

caldera

question

a tiny blood vessel in tissues and organs that makes exchange of nutrients and gases between the blood and tissues possible

answer

capillary

question

an animal that feeds on the meat of other animals

answer

carnivore

question

the number of organisms that the resources of an ecosystem can support

answer

carrying capacity

question

part of the nervous system that consists of the brain and the spinal cord

answer

central nervous system

question

the outward force exerted on a body in circular motion

answer

centrifugal force

question

the inward force exerted on a body in circular motion

answer

centripetal force

question

second largest part of the brain; refines and coordinates muscular movements

answer

cerebellum

question

largest and most complex structure of the brain

answer

cerebrum

question

the form of potential energy found in fuels, batteries and food

answer

chemical energy

question

a volcano made of loose rock fragments given off from the central vent forming a slope of about 30?

answer

cinder cone

question

the movement of a body along a circular path

answer

circular motion

question

one of the geographic belts that encircles the Pacific Ocean and includes the west coasts of North and South America, Japan and the Philippines

answer

circum-Pacific belt

question

the average weather condition of a place over a long period of time.

answer

climate

question

the relationship of cooperation in which one organism is helped while the other organism is neither helped nor harmed

answer

commensalism

question

groups of plants and animals living together

answer

community

question

the transfer of heat energy by direct contact between the particles of solid materials

answer

conduction

question

a material through which heat or electricity passes readily

answer

conductor

question

wise use of resources to preserve or protect them

answer

conservation

question

a group of stars that appears to form a picture or pattern

answer

constellation

question

an animal that feeds on plants or other animals

answer

consumer

question

the method of planting across instead of up and down a slope. this method prevents soil being washed down the hill.

answer

contour plowing

question

the transfer of heat by the movement of liquid or gas due to a temperature difference.

answer

convection

question

the innermost layer of the earth made up of two sublayers

answer

core

question

the practice of growing different plants on the same piece of land at different times of the year. this practice helps maintain the soil's fertility.

answer

crop rotation

question

the soli9d outermost part of the earth; made of rocks, soil and different landforms

answer

crust

question

an atmospheric disturbance characterized by masses of air rapidly rotating about a low-pressure center

answer

cyclone

question

a construction that serves as a barrier to control water flow in a waterway

answer

dam

question

the ratio of the number of organisms that die to the total population in a specified community during a given period of time

answer

death rate

question

an organism that feeds on dead organic matter and breaks it down to simpler substances

answer

decomposer

question

a short, threadlike extension of the cell body of a neuron; conducts nerve impulses toward the cell body

answer

dendrite

question

a volcano that has not erupted during the last 500 to 5000 years.

answer

dormant volcano

question

the shaking or trembling of the earth's crust

answer

earthquake

question

a sound that is reflected from a surface

answer

echo

question

a group of living things interacting with one another and with the nonliving environment

answer

ecosystem

question

the form of energy associated with electric charges

answer

electricity

question

a negatively charged particle in an atom

answer

electron

question

force that comes from within the earth

answer

endogenic force

question

the capacity to do work, that is, to exert a force on an object and cause it to move through a distance

answer

energy

question

a diagram that shows the flow of energy in a community

answer

energy pyramid

question

the change of energy from one form to another

answer

energy transformation

question

the sum of all the living and nonliving things that surround and affect an organism

answer

environment

question

the point on the earth's surface directly above the focus

answer

epicenter

question

force that comes from outside the surface of the earth

answer

exogenic force

question

a volcano that has remained dormant or inactive for more than 5000 years

answer

extinct volcano

question

a break or fracture formed when a land plate slips or slides

answer

fault

question

a chemical or natural mixture added to soil to help plants grow

answer

fertilizer

question

the ability to be burned

answer

flammability

question

a substance that helps make some food tastier or more appetizing

answer

flavor enhancer

question

a point within the earth from which earthquake waves originate

answer

focus

question

an arrangement of organisms according to a feeding order

answer

food chain

question

interacting food chains in a community

answer

food web

question

a kind of fuel that comes from the remains of plants and animals that have been buried over a long period of time.

answer

fossil fuel

question

a material that can be burned or used to produce heat and light

answer

fuel

question

the process in which two or more light atoms combine to form a heavy atom and release a large amount of energy

answer

fusion

question

the state of matter characterized by indefinite shape and volume

answer

gas

question

the form of energy that originates from the interior of the earth

answer

geothermal energy

question

the periodic to-and-fro motion of a vibrating objects

answer

harmonic motion

question

the iron-containing protein found in red blood cells; transports oxygen and carbon dioxide from the lungs

answer

hemoglobin

question

an animal that feeds on plants

answer

herbivore

question

the amount of moisture in the air

answer

humidity

question

a cyclone with heavy rains and with winds exceeding 120 kph

answer

hurricane

question

the energy obtained from fast-moving water that falls from a waterfall or a high dam

answer

hydroelectric power

question

the water part of the earth

answer

hydrosphere

question

"warming effect" due to trapping of heat energy in the earth's atmosphere.

answer

greenhouse effect

question

a structure that makes use of geothermal energy to produce electricity

answer

geothermal plant

question

a rock that is formed from hardened lava

answer

igneous rock

question

a sublayer of the core made of solid iron and nickel

answer

inner core

question

material that does not conduct heat or electricity

answer

insulator

question

a measure of the strength of an earthquake

answer

intensity

question

energy associated with motion

answer

kinetic energy

question

mudflow or moving mass of soil containing volcanic ash; behaves like wet concrete

answer

lahar

question

a circle drawn around a globe; measured in degrees north or south of the equator

answer

latitude

question

hot molten rock that issues from a volcano or a fissure in the earth's surface

answer

lava

question

states that energy changes its form but is neither created nor destroyed. The total of energy in a system remains the same.

answer

law of conservation of energy

question

states that an object at rest tends to remain at rest and an object in motion tends to move at a constant speed in the same direction unless acted upon by an imbalanced force.

answer

law of inertia

question

the distance traveled by light in one year; the unit used to express distance between heavenly bodies.

answer

light year

question

motion in a straight line.

answer

linear motion

question

the state of matter characterized by an indefinite shape and a definite volume.

answer

liquid

question

the land part of the earth

answer

lithosphere

question

a measure of the total amount of light energy a star gives off

answer

luminosity

question

part of the circulatory system that collects and drains fluid that seeps from the blood and accumulates in the space between cells

answer

lymphatic system

question

hot molten rock inside the earth

answer

magma

question

layer of the earth below the crust; made up of solid bedrock

answer

mantle

question

a star that has a mass at least 50 times greater than that of the sun

answer

massive star

question

anything that occupies space and has mass

answer

matter

question

the energy that an object possesses due to its motion or movement

answer

mechanical energy

question

earthquake belt that runs through the Mediterranean Sea, crosses the Mideast and the Himalayas, and passes through the East Indies to meet the circum-Pacific belt north of Australia

answer

Mediterranean-Himalayan Belt

question

a spiral type of galaxy where the planet Earth is found

answer

Milky Way

question

a measure of earthquake intensity expressed in Roman numerals from I to XII

answer

modified Mercalli scale

question

the boundary separating the crust from the mantle; also called Moho

answer

Mohorovicic discontinuity

question

a wind system that influences large climatic regions and reverses direction seasonally

answer

monsoon

question

the change in position of an object in relation to a reference point

answer

motion

question

a relationship of cooperation in which two different organisms help each other

answer

mutualism

question

a great cloud of dust and gas in space

answer

nebula

question

a cell specialized to transmit impulses

answer

neuron

question

the neutral particle of an atom; located in the nucleus

answer

neutron

question

the tiny core that is left after a supernova explosion

answer

neutron star

question

the star above the North Pole; also known as Polaris

answer

North Star

question

the energy that is released from nuclear fission or fusion or from radioactive decay

answer

nuclear energy

question

the small, dense central part of an atom

answer

nucleus

question

part of food that nourishes

answer

nutrient

question

tectonic plates found under the ocean

answer

oceanic plates

question

an organism that feeds on both plants and animals

answer

omnivore

question

layer of the earth between the mantle and the inner core; made up of liquid iron and nickel

answer

outer core

question

the three-atom molecule of oxygen that forms a protective layer in the upper atmosphere

answer

ozone

question

nerves and fibers that connect the central nervous system with other parts of the body

answer

peripheral nervous system

question

a chemical used to kill insects that are harmful to crops and other plants

answer

pesticide

question

a living thing that can manufacture its own food

answer

plant

question

the theory that states that our planer is made up of slowly moving land plates

answer

plate tectonics theory

question

the condition of the air, land and water that threatens the health and life of organisms due to the presence of harmful substances in these parts of the earth

answer

pollution

question

a group of the same kind of organisms living in the same area

answer

population

question

energy due to the position or composition of matter

answer

potential energy

question

an organism that can make its own food

answer

producer

question

the positively charged particle of an atom; located in the nucleus

answer

proton

question

the nearest star to the sun

answer

Proxima Centauri

question

a weather instrument that measures relative humidity

answer

psychrometer

question

blood circuit between the heart and lungs

answer

pulmonary circulation

question

the transfer of energy by heat waves

answer

radiation

question

a fixed point used to determine if there is a change in position

answer

reference point

question

the movement of the earth in its elliptical orbit around the sun

answer

revolution

question

a numerical measurement of an earthquake's strength

answer

Richter Scale

question

another name for the circum-Pacific earthquake belt that encircles the Pacific Ocean

answer

Ring of Fire

question

motion of a body that rotates about an axis

answer

rotary motion

question

the movement of the earth about its tilted axis

answer

rotation

question

an instrument that detects an earthquake and measures its strength

answer

seismograph

question

a heart valve that prevents blood from flowing back into the ventricles

answer

semilunar valve

question

a volcano with a broad cone gently sloping between 6? to 12?

answer

shield volcano

question

a meteor that is vaporized by heat of friction as it enters the atmosphere

answer

shooting star

question

any atmospheric disturbance with strong winds at a speed of 63 to 118 kph; often accompanied by heavy rain, snow or hail

answer

storm

question

also known as composite volcano; made alternately of pyroclastic materials and rock from solidified lave flow

answer

stratovolcano

question

massive stars that have become even bigger in size

answer

supergiants

question

the brilliant explosion of a supergiant

answer

supernova

question

the space between a neuron and the next neuron in an impulse pathway

answer

synapse

question

the study of the earth's crust

answer

tectonics

question

a measure of the average kinetic energy of molecules

answer

temperature

question

an instrument that measures temperature

answer

thermometer

question

a heavy storm accompanied by lightning and thunder

answer

thunderstorm

question

a violently whirling column of air accompanied by a funnel-shaped thundercloud moving over a narrow path

answer

tornado

question

a weather disturbance known as hurricane in the United States and typhoon if it occurs in the Pacific Ocean

answer

tropical cyclone

question

an atmospheric disturbance that has a wind speed of less than 63 kph

answer

tropical depression

question

an atmospheric disturbance that has a wind speed of 63 to 118 kph

answer

tropical storm

question

latitude that is located 23.5? north above the equator

answer

Tropic of Cancer

question

latitude that is located 23.5? south below the equator

answer

Tropic of Capricorn

question

a huge sea wave produced by an earthquake

answer

tsunami

question

a severe atmospheric disturbance in the Pacific; has a wind speed greater than 118 kph

answer

typhoon

question

forces that cause a change in an object's state of motion; the net force that acts on the object is not equal to zero

answer

unbalanced forces

question

blood vessel that carries blood from the body to the heart

answer

vein

question

the change in displacement of a body during a period of time

answer

velocity

question

the process or activity by which a volcano gives off gases and other volcanic materials

answer

volcanism

question

a vent on the earth's crust

answer

volcano

question

a compound that is made up of two atoms of hydrogen and one atom of oxygen

answer

water

question

the condition of the atmosphere within a short period of time

answer

weather

question

the remnant of a red giant that has lost its outer surface

answer

white dwarf

question

moving air

answer

wind

question

a weather instrument that tells the direction of the wind

answer

wind vane

question

a measure of how fast or how slow the wind moves

answer

wind speed

question

a funnel-shaped bag with holes at both ends; used to tell the direction of the wind

answer

wind sock

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