Science glossary films index
- Absolute zero
- Absorption
- Accuracy
- Acid
- Acid rain
- Activation energy
- Adaptive divergence
- Addiction
- Aerobic respiration
- Aerosol
- Agar
- Alcohol
- Algae
- Alkali
- Alkali metal
- Alkaline earth metal
- Allele Glossary video
- Allotropes
- Alloy
- Alpha particle
- Altitude Glossary video
- Alveoli Glossary video
- Amino acid
- Amniotic fluid
- Amorphous
- Amplification of DNA
- Amplify
- Amplitude Glossary video
- Amylase
- Anaerobic respiration
- Analog
- Angiosperm
- Angle of incidence
- Angle of reflection
- Angstrom
- Anode
- Antagonistic muscles
- Antenna
- Antibiotic
- Antibiotic resistance
- Antibody
- Anticyclone
- Antigen
- Antimatter
- Antioxidant
- Aorta
- Apoptosis
- Appendix
- Aqueous
- Aquifer
- Archaea
- Artificial propagation
- Asexual Reproduction Glossary video
- Asteroid
- Astronomy
- Atmosphere Glossary video
- Atom
- Atomic mass
- Atomic number
- Atomic weight
- ATP
- Aurora
- Autoimmune disease
- Autosomal
- Autotroph
- Auxin
- Axon Glossary video
- Bacteria Glossary video
- Baryons
- Basalt
- Base (biology)
- Base (chemistry)
- Big Bang
- Bile
- Billion
- Biochemistry
- Biodegradable
- Biodiversity
- Biomass
- Biosphere Glossary video
- Black hole
- Blastocyst
- Blood pressure
- Boiling point
- Boyle's law
- Brittle
- Bronchi Glossary video
- Bronchiole Glossary video
- Buffer
- Bunsen burner
- Buoyancy
- Caldera
- Calibrate
- Carbohydrate
- Carbon dating
- Carbonate
- Carpel
- Catabolism
- Catalyst
- Cathode
- Cathode ray
- Cell cycle
- Cell division
- Cell Glossary video
- Cell wall
- Cellulose
- Cervix
- Chemical bond
- Chemical energy
- Chemical reaction
- Chemical synthesis
- Chemiluminescence
- Chlorofluorocarbons
- Chlorophyll
- Chloroplast
- Chordate
- Chromatin
- Chromosome
- Classification
- Climate
- Climatology
- Clone
- Coke
- Combustion
- Comet
- Compound
- Compound microscope
- Concave
- Concentration
- Conception
- Condensing
- Conduction
- Continental crust
- Continental Drift Glossary video
- Control
- Convection Glossary video
- Convex
- Core (biology)
- Core (Earth sciences)
- Corona
- Correlation video
- Corrosion
- Cortisol
- Cosmic dust
- Cosmic rays
- Cosmology
- Coulomb
- Covalent bond
- Crater Glossary Video
- Crude oil
- Crust
- Crystal
- Crystallization
- Cytoplasm
- Dark energy
- Dark matter
- Data
- Decomposition
- Delocalized electrons
- Delta
- Denature
- Denitrification
- Density
- Deoxygenated Glossary video
- Depression
- Desertification
- Diabetes
- Diatomic
- Diffraction
- Diffusion
- Digestion
- Diode
- Diploid
- Dissociate
- Dissolve
- Distillation
- Divergence
- DNA
- DNA profile
- DNA replication
- Dominant Allele Glossary video
- Doppler shift
- Earth
- Earthquake
- Echo
- Echolocation Glossary video
- Ecosystem
- Elastic
- Electric Current
- Electric force
- Electrical charge
- Electrode
- Electrolysis
- Electrolyte
- Electrolytic cell
- Electromagnetic radiation
- Electromagnetic Spectrum Glossary video
- Electron
- Electron shell
- Electrostatic attraction
- Element
- Elliptical orbit
- Embryo
- Emission
- Endangered Glossary video
- Endocytosis
- Endothermic Glossary video
- Energy Glossary video
- Energy level
- E-Number
- Enzyme
- Epicenter
- Epidemiology
- Epinephrine
- Equilibrium
- Erosion
- Eukaryote
- Evaporation
- Evolution Glossary video
- Exothermic Glossary video
- Extinction
- Extraction
- Extrusion
- Magma
- Magnetic Field Glossary video
- Magnetic force
- Mantle
- Mass Glossary video
- Mass spectrometer
- Matter
- Mean
- Mechanical Wave Glossary video
- Median
- Medium
- Meiosis
- Melting point
- Mesosphere
- Metabolism
- Metal
- Metallic bond
- Metalloid
- Metamorphic Rock Glossary video
- Metamorphism
- Meteor
- Meteor shower
- Meteorite
- Methane
- Microorganism Glossary video
- Microwave
- Migration
- Milky Way
- Millibar (mb)
- Mineral (biology)
- Mineral (chemistry)
- Mitosis
- Modulation
- Molecular mass
- Molecular weight
- Molecule
- Molten
- Monomer
- Moon
- Motion
- Mutation Glossary video
- Myoglobin
- Pangaea Glossary video
- Particle(s) Glossary video
- Peer review
- Peptide
- Periodic table
- pH
- Phagocyte
- Phenotype Glossary video
- Phloem
- Phospholipid
- Photon
- Photosynthesis Glossary video
- Pigment
- Pitch
- Planet
- Planetary nebula
- Plasma (biology)
- Plasma (physics)
- Plate boundary
- Polarity
- Polarization
- Pole
- Pollen
- Polymer
- Polyunsaturated
- Positive charge
- Potash
- Potential Energy Glossary video
- Power
- Precipitate
- Precision
- Predator
- Pregnancy
- Preservative
- Pressure
- Prey
- Primeval soup
- Prism
- Product Glossary video
- Prokaryote
- Propulsion
- Protein
- Proton
- Pure
- P-wave
- Pyroclastic flows
- Radiation
- Radio Waves Glossary video
- Radioactivity
- Rate of reaction
- Reactant Glossary video
- Reaction
- Reactivity
- Receiver
- Receptor
- Recessive Allele Glossary video
- Recombination
- Red giant
- Redox reaction
- Reduction
- Reflection
- Reflex arc
- Refraction
- Refractive index
- Renewable energy
- Resolution
- Resonance
- Resonant frequency
- Respiration
- Reversible reaction
- Ribosomes
- RNA
- Robot
- Rotation
- Salt
- Satellite
- Saturated fats
- Saturated solutions
- Saturn's rings
- Seafloor Spreading Glossary video
- Sediment
- Sedimentary Rock Glossary video
- Seismic waves
- Semiconductor
- Sensory
- Shockwaves
- SI
- Smog
- Solar cell
- Solar Eclipse Glossary video
- Solar flare
- Solar storm
- Solar System
- Solar wind
- Solid
- Soluble
- Solute
- Solution
- Solvent
- Sonic boom
- Source
- Spacecraft
- Species Glossary video
- Spectrometer
- Spectroscopy
- Spectrum
- Sperm
- Spontaneous
- Spontaneous emission
- Stable
- Star
- Starch
- Static electricity
- Stationary
- Stimulated emission
- Stratosphere
- Strong acid
- Strong material
- Strong nuclear force
- Subatomic particles
- Subduction
- Substance
- Substrate
- Sun
- Sunspot
- Superconductivity
- Supernova
- Supersonic
- Surface tension
- Sustainable
- S-wave
- Symbiosis
- Symptom Glossary video
- Synthetic Glossary video
- 500+ key scientific terms visualized in stunning images and concise textual definitions
- Short 30–60 second films using memorable visual and written learning cues
- Clear and engaging, Twig Science Glossary reinforces the learning of key curriculum terms
Analog
An analog signal is one in which any variation in amplitude or frequency is continuous.
