Quiz about Life Science Vocabulary and Physical Science Vocabulary

Question 1

What is the smallest structural and functional unit of an organism?

Accepted Answer

Cell

Answer

Tissue

Answer

Organ

Answer

Organism

Question 2

What are specialized structures within a cell that perform specific tasks called?

Accepted Answer

Organelle

Answer

Enzyme

Answer

Chromosome

Answer

Membrane

Question 3

What is the 'powerhouse' of the cell that produces energy via cellular respiration?

Accepted Answer

Mitochondria

Answer

Nucleus

Answer

Ribosome

Answer

Chloroplast

Question 4

What is the process plants use to convert sunlight into chemical energy (glucose)?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Transpiration

Answer

Fermentation

Question 5

What is the chemical process where cells break down glucose to release energy called?

Accepted Answer

Respiration

Answer

Photosynthesis

Answer

Fermentation

Answer

Transpiration

Question 6

What is the molecule that carries genetic information?

Accepted Answer

DNA

Answer

RNA

Answer

Protein

Answer

Lipid

Question 7

What is a specific characteristic of an organism, often inherited, called?

Accepted Answer

Trait

Answer

Habitat

Answer

Enzyme

Answer

Cell

Question 8

What is a complex network of feeding relationships in an ecosystem called?

Accepted Answer

Food Web

Answer

Energy Pyramid

Answer

Habitat Chain

Answer

Nutrient Cycle

Question 9

What is a trait that helps an organism survive and reproduce in its environment called?

Accepted Answer

Adaptation

Answer

Mutation

Answer

Migration

Answer

Extinction

Question 10

What is the smallest unit of a chemical element?

Accepted Answer

Atom

Answer

Molecule

Answer

Cell

Answer

Proton

Question 11

What do you call two or more atoms chemically bonded together?

Accepted Answer

Molecule

Answer

Element

Answer

Ion

Answer

Compound

Question 12

What is a pure substance made of only one type of atom called?

Accepted Answer

Element

Answer

Compound

Answer

Mixture

Answer

Solution

Question 13

What is a substance made from atoms of different elements bonded together called?

Accepted Answer

Compound

Answer

Element

Answer

Mixture

Answer

Solution

Question 14

What is a process that changes substances into new ones called?

Accepted Answer

Chemical Reaction

Answer

Physical Change

Answer

Evaporation

Answer

Condensation

Question 15

________ are substances present before a chemical reaction occurs.

Accepted Answer

Reactants

Answer

Products

Answer

Catalysts

Answer

Solvents

Question 16

________ are substances formed as a result of a chemical reaction.

Accepted Answer

Products

Answer

Reactants

Answer

Catalysts

Answer

Solvents

Question 17

A reaction where a substance reacts with oxygen, often producing heat and light. ________ is a reaction where a substance reacts with oxygen, often producing heat and light.

Accepted Answer

Combustion Reaction

Answer

Decomposition Reaction

Answer

Neutralization Reaction

Answer

Displacement Reaction

Question 18

________ is a reaction where a substance loses electrons, often involving oxygen.

Accepted Answer

Oxidation

Answer

Reduction

Answer

Sublimation

Answer

Condensation

Question 19

A reaction where a substance gains electrons. ________ is a reaction where a substance gains electrons.

Accepted Answer

Reduction

Answer

Oxidation

Answer

Combustion

Answer

Hydrolysis

Question 20

A chemical reaction that absorbs heat. ________ is a chemical reaction that absorbs heat.

Accepted Answer

Endothermic Reaction

Answer

Exothermic Reaction

Answer

Combustion Reaction

Answer

Neutralization Reaction

Question 21

A chemical reaction that releases heat. ________ is a chemical reaction that releases heat.

Accepted Answer

Exothermic Reaction

Answer

Endothermic Reaction

Answer

Neutralization Reaction

Answer

Decomposition Reaction

Question 22

The principle stating that mass is neither created nor destroyed in a chemical reaction. ________ is the principle stating that mass is neither created nor destroyed in a chemical reaction.

Accepted Answer

Conservation of Mass

Answer

Law of Acceleration

Answer

Theory of Relativity

Answer

Principle of Buoyancy

Question 23

________ refers to the types and numbers of atoms in a substance.

Accepted Answer

Atomic Composition

Answer

Molecular Weight

Answer

Physical State

Answer

Chemical Reaction

Question 24

The arrangement of atoms in a molecule. ________ is the arrangement of atoms in a molecule.

Accepted Answer

Molecular Structure

Answer

Atomic Number

Answer

Ionic Bond

Answer

Electron Cloud

Question 25

The outermost electrons of an atom, important in bonding. ________ are the outermost electrons of an atom, important in bonding.

Accepted Answer

Valence Electrons

Answer

Core Electrons

Answer

Protons

Answer

Neutrons

Question 26

Forces that hold atoms together in a compound. ________ are forces that hold atoms together in a compound.

Accepted Answer

Chemical Bonds

Answer

Ionic Currents

Answer

Physical Forces

Answer

Magnetic Fields

Question 27

The substance that is completely used up first in a reaction. ________ is the substance that is completely used up first in a reaction.

Accepted Answer

Limiting Reagent

Answer

Excess Reagent

Answer

Catalyst

Answer

Product

Question 28

________ is the ratio of actual product obtained to the theoretical amount possible, expressed as a percentage.

Accepted Answer

Percent Yield

Answer

Molarity

Answer

Limiting Reactant

Answer

Empirical Formula

Question 29

________ is the energy of motion.

Accepted Answer

Kinetic Energy

Answer

Potential Energy

Answer

Thermal Energy

Answer

Chemical Energy

Question 30

________ is stored energy based on position or condition.

Accepted Answer

Potential Energy

Answer

Kinetic Energy

Answer

Thermal Energy

Answer

Chemical Energy

Question 31

The total energy of motion in the particles of a substance. ________ is the total energy of motion in the particles of a substance.

Accepted Answer

Thermal Energy

Answer

Potential Energy

Answer

Chemical Energy

Answer

Nuclear Energy

Question 32

Heat transfer through direct contact is called ________.

Accepted Answer

Conduction

Answer

Radiation

Answer

Evaporation

Answer

Convection

Question 33

Heat transfer through the movement of fluids (liquids or gases) is called ________.

Accepted Answer

Convection

Answer

Conduction

Answer

Radiation

Answer

Insulation

Question 34

Heat transfer through electromagnetic waves is called ________.

Accepted Answer

Radiation

Answer

Conduction

Answer

Convection

Answer

Insulation

Question 35

The amount of heat required to raise the temperature of a substance is called ________.

Accepted Answer

Specific Heat

Answer

Latent Heat

Answer

Thermal Conductivity

Answer

Heat Capacity

Question 36

The measurement of heat changes in physical and chemical processes is called ________.

Accepted Answer

Calorimetry

Answer

Thermometry

Answer

Electrolysis

Answer

Photometry

Question 37

Forces of attraction or repulsion between molecules are called ________.

Accepted Answer

Intermolecular Forces

Answer

Ionic Bonds

Answer

Covalent Bonds

Answer

Nuclear Forces

Question 38

A push or pull on an object is called a ________.

Accepted Answer

Force

Answer

Energy

Answer

Friction

Answer

Weight

Question 39

Equal forces acting on an object in opposite directions, causing no motion, are called ________.

Accepted Answer

Balanced Forces

Answer

Unbalanced Forces

Answer

Frictional Forces

Answer

Gravitational Forces

Question 40

Forces that cause a change in motion are called ________.

Accepted Answer

Unbalanced Forces

Answer

Balanced Forces

Answer

Frictional Forces

Answer

Gravitational Forces

Question 41

The overall force acting on an object after all forces are combined is called ________.

Accepted Answer

Net Force

Answer

Friction

Answer

Gravity

Answer

Mass

Question 42

The force of attraction between all masses in the universe is called ________.

Accepted Answer

Gravitational Force

Answer

Electrostatic Force

Answer

Magnetic Force

Answer

Nuclear Force

Question 43

A force that keeps an object moving in a circular path is called ________.

Accepted Answer

Centripetal Force

Answer

Frictional Force

Answer

Gravitational Force

Answer

Electrostatic Force

Question 44

What is the term for waves that can travel through space and matter; includes light, radio, and X-rays?

Accepted Answer

Electromagnetic Waves

Answer

Sound Waves

Answer

Seismic Waves

Answer

Mechanical Waves

Question 45

What is the term for the distance between two consecutive peaks or troughs in a wave?

Accepted Answer

Wavelength

Answer

Frequency

Answer

Amplitude

Answer

Velocity

Question 46

What is the term for the height of a wave; related to energy?

Accepted Answer

Amplitude

Answer

Frequency

Answer

Wavelength

Answer

Period

Question 47

What is the term for how many wave cycles pass a point in a given time?

Accepted Answer

Frequency

Answer

Amplitude

Answer

Wavelength

Answer

Velocity

Question 48

What is the term for signals represented by discrete values (binary), often more reliable?

Accepted Answer

Digitized Signals

Answer

Analog Signals

Answer

Continuous Signals

Answer

Noisy Signals

Question 49

What is the term for a cable that transmits data using light through glass or plastic fibers?

Accepted Answer

Fiber Optic Cable

Answer

Coaxial Cable

Answer

Twisted Pair Cable

Answer

Ethernet Cable

Question 50

What is the theory explaining the movement of Earth's plates and related phenomena like earthquakes called?

Accepted Answer

Plate Tectonics

Answer

Continental Drift

Answer

Seafloor Spreading

Answer

Volcanic Theory

Question 51

What is the breakdown of rocks into smaller pieces by natural processes called?

Accepted Answer

Weathering

Answer

Melting

Answer

Condensation

Answer

Evaporation

Question 52

What is the movement of rock particles by wind, water, or ice called?

Accepted Answer

Erosion

Answer

Condensation

Answer

Evaporation

Answer

Photosynthesis

Question 53

What are preserved remains or traces of ancient organisms called?

Accepted Answer

Fossil

Answer

Mineral

Answer

Crystal

Answer

Sediment

Question 54

What is the term for the average weather conditions of a region over a long period?

Accepted Answer

Climate

Answer

Weather

Answer

Forecast

Answer

Temperature

Question 55

What is a massive system of stars, gas, and dust held together by gravity called?

Accepted Answer

Galaxy

Answer

Asteroid

Answer

Comet

Answer

Nebula

Question 56

What is the force that pulls objects toward each other called?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Answer

Electricity

Question 57

What is the sun and all objects that orbit it, including planets and moons, called?

Accepted Answer

Solar System

Answer

Galaxy

Answer

Universe

Answer

Asteroid Belt

Question 58

What is the spinning of Earth on its axis (causes day and night) called?

Accepted Answer

Rotation

Answer

Revolution

Answer

Orbiting

Answer

Tilting

Question 59

What is the orbit of Earth around the sun (causes seasons) called?

Accepted Answer

Revolution

Answer

Rotation

Answer

Precession

Answer

Oscillation

Question 60

What do we call any factor that can change in an experiment?

Accepted Answer

Variable

Answer

Constant

Answer

Theory

Answer

Law

Question 61

What is the variable that is intentionally changed in an experiment?

Accepted Answer

Independent Variable

Answer

Dependent Variable

Answer

Control Variable

Answer

Constant

Question 62

What is the variable being measured or observed in an experiment?

Accepted Answer

Dependent Variable

Answer

Independent Variable

Answer

Control Variable

Answer

Constant

Question 63

What do we call facts and statistics collected for reference or analysis?

Accepted Answer

Data

Answer

Theory

Answer

Opinion

Answer

Hypothesis

Question 64

What is a judgment based on the results of an experiment called?

Accepted Answer

Conclusion

Answer

Hypothesis

Answer

Variable

Answer

Observation

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