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  - Thermodynamics
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    - Kinetic Theory 42
    - Gas Laws 14
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    - Heat Engine 2
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  - Waves and Oscillations
    - Wave Motion 22
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    - Interference 5
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  - Optics
    - Optics Reflection 32
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    - Lenses 23
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    - Electric Charge 29
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    - Current Electricity 24
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    - Electric Power 18
    - Magnetic Field 29
    - Electromagnetic Induction 14
    - Alternating Current 6
    - Electromagnetic Waves 35
    - Circuit Theory 41
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  - Modern Physics
    - Atomic Physics 36
    - Quantum Theory 5
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    - Spectroscopy 1
  - Nuclear Physics
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    - Half Life 3
    - Physics Nuclear Reactions 3
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  - Quantum Physics
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    - Atomic Models 48
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  - Relativity
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  - Astrophysics
    - Stellar Physics 3
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    - Continuity Equation 1
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  - Measurement and Units
    - SI Units 9
    - Derived Units 7
    - Unit Conversion 11
    - Significant Figures 34
    - Scientific Notation 13
    - Dimensional Analysis 12
    - Accuracy 8
    - Precision 27
    - Error Analysis 29
    - Measuring Instruments 29
- Chemistry
  - Physical Chemistry
    - States of Matter 202
    - Physical Gas Laws 26
    - Chemical Equilibrium 18
    - Ionic Equilibrium 50
    - Solutions 10
    - Colligative Properties 66
    - Chemical Kinetics 18
    - Electrochemistry 12
    - Surface Chemistry 2
    - Physical Quantum Chemistry 1
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  - Inorganic Chemistry
    - Periodic Table 231
    - Chemical Bonding 112
    - Coordination Compounds 23
    - Metallurgy 2
    - s Block Elements 1
    - p Block Elements 1
    - d Block Elements 2
    - f Block Elements 5
    - Hydrogen 8
    - Halogens 10
    - Noble Gases 5
    - Acids and Bases 74
    - Salt Analysis 28
  - Organic Chemistry
    - Organic Compounds Classification 28
    - Structural Isomerism 13
    - Nomenclature 83
    - Hydrocarbons 6
    - Haloalkanes 6
    - Alcohols 10
    - Aldehydes 3
    - Ketones 4
    - Carboxylic Acids 9
    - Amines 3
    - Organic Biomolecules 17
    - Organic Reactions 15
  - Analytical Chemistry
    - Qualitative Analysis 9
    - Quantitative Analysis 5
    - Titrations 3
    - Gravimetric Analysis 5
    - Chromatography 5
    - Spectrophotometry 3
    - Electroanalytical Methods 10
    - Mass Spectrometry 5
    - Thermal Analysis 2
    - Separation Techniques 24
  - Biochemistry
    - Biomolecules 7
    - Bio Carbohydrates 22
    - Proteins 31
    - Enzymes 24
    - Lipids 49
    - Nucleic Acids 8
    - Metabolism 4
    - Bioenergetics 1
    - Vitamins 35
    - Hormones 17
    - Cell Signaling 16
    - Genetic Code 4
  - Environmental Chemistry
    - Air Pollution 18
    - Water Pollution 20
    - Soil Pollution 4
    - Waste Management 54
    - Ozone Depletion 9
    - Acid Rain 8
    - Eutrophication 2
    - Toxicology 52
    - Radioactive Pollution 3
  - Industrial Chemistry
    - Petrochemicals 1
    - Cement 7
    - Glass 1
    - Fertilizers 4
    - Dyes 2
    - Paints 1
    - Pharmaceuticals 2
    - Food Chemistry 13
    - Pulp and Paper 2
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    - Detergents 6
  - Nuclear Chemistry
    - Chemistry Radioactivity 2
    - Chemistry Nuclear Reactions 2
    - Radioisotopes 8
    - Nuclear Safety 51
  - Polymer Chemistry
    - Polymerization 1
    - Addition Polymers 1
    - Condensation Polymers 1
    - Natural Polymers 1
    - Synthetic Polymers 2
    - Thermoplastics 3
    - Polymer Properties 1
    - Polymer Applications 1
  - Theoretical Chemistry
    - Molecular Modeling 1
    - Computational Chemistry 1
    - Statistical Mechanics 12
    - Chemical Thermodynamics 13
    - Reaction Dynamics 125
    - Electronic Structure 57
    - Molecular Dynamics 18
    - Spectroscopy Theory 1
  - Medicinal Chemistry
    - Drug Design 4
    - Pharmacokinetics 42
    - Pharmacodynamics 19
    - Drug Metabolism 7
    - Enzyme Inhibition 26
    - Receptor Binding 12
    - Structure Activity 11
    - Prodrugs 5
    - Natural Products 19
    - Peptidomimetics 4
  - Green Chemistry
    - Principles 8
    - Sustainable Design 1
    - Waste Prevention 8
    - Energy Efficiency 13
    - Catalysis 1
    - Biodegradable Materials 1
    - Green Synthesis 1
    - Solvent Reduction 10
    - Atom Economy 2
    - Life Cycle Analysis 3
    - Pollution Prevention 4
  - Materials Chemistry
    - Crystal Structure 51
    - Band Theory 7
    - Materials Polymers 2
    - Ceramics 5
    - Composites 2
    - Nanomaterials 9
    - Biomaterials 3
    - Corrosion 28
    - Alloys 11
    - Superconductors 1
    - Thin Films 1
    - Magnetic Materials 4
    - Optical Materials 4
- Biology
  - Cell Biology
    - Cell Theory 100
    - Prokaryotic Cells 17
    - Eukaryotic Cells 26
    - Cell Organelles 63
    - Cell Membrane 70
    - Cell Wall 2
    - Cytoplasm 14
    - Nucleus 12
    - Mitochondria 16
    - Chloroplasts 15
    - Ribosomes 13
    - Endoplasmic Reticulum 2
    - Golgi Apparatus 15
    - Lysosomes 6
    - Cytoskeleton 12
    - Cell Division 113
    - Cell Cycle 37
    - Transport Mechanisms 93
    - Cell Communication 2
  - Genetics
    - DNA Structure 95
    - RNA Structure 38
    - Gene Expression 15
    - Biological Genetic Code 5
    - DNA Replication 36
    - Transcription 8
    - Translation 4
    - Mutation 43
    - Mendelian Inheritance 38
    - Non Mendelian Inheritance 87
    - Genetic Disorders 130
    - Genetic Mapping 3
    - Genetic Engineering 9
    - Genomics 9
    - Epigenetics 5
  - Evolution
    - Origin of Life 47
    - Theories of Evolution 13
    - Natural Selection 42
    - Variation 27
    - Adaptation 23
    - Speciation 9
    - Fossil Record 12
    - Comparative Anatomy 31
    - Molecular Evidence 44
    - Human Evolution 22
    - Coevolution 6
    - Extinction 12
  - Ecology
    - Ecosystem 53
    - Biomes 10
    - Population Ecology 30
    - Community Ecology 10
    - Food Chains 98
    - Food Webs 45
    - Ecological Energy Flow 24
    - Nutrient Cycles 57
    - Biodiversity 183
    - Ecological Conservation 95
    - Habitat 119
    - Succession 24
    - Ecological Adaptation 38
    - Human Impact 37
    - Ecological Climate Change 16
  - Human Anatomy and Physiology
    - Skeletal System 252
    - Muscular System 161
    - Nervous System 340
    - Endocrine System 186
    - Circulatory System 207
    - Respiratory System 177
    - Digestive System 128
    - Excretory System 73
    - Reproductive System 139
    - Immune System 99
    - Integumentary System 51
    - Sensory Organs 213
  - Botany Plant Biology
    - Plant Anatomy 5
    - Plant Morphology 119
    - Plant Physiology 74
    - Photosynthesis 104
    - Plant Reproduction 32
    - Plant Growth 9
    - Plant Hormones 28
    - Plant Taxonomy 93
    - Plant Ecology 32
    - Plant Pathology 12
    - Economic Botany 48
    - Seed Biology 6
    - Plant Genetics 5
    - Plant Adaptations 53
  - Zoology Animal Biology
    - Classification 267
    - Porifera 10
    - Cnidaria 21
    - Platyhelminthes 34
    - Nematoda 17
    - Annelida 16
    - Arthropoda 26
    - Mollusca 16
    - Echinodermata 19
    - Chordata 13
    - Fish 27
    - Amphibians 28
    - Reptiles 41
    - Birds 61
    - Mammals 38
    - Anatomy 30
    - Physiology 29
    - Reproduction 40
    - Development 16
    - Behavior 170
  - Microbiology
    - Microbial Structure 58
    - Bacteriology 7
    - Virology 18
    - Mycology 23
    - Parasitology 45
    - Microbial Genetics 2
    - Microbial Physiology 15
    - Microbial Ecology 27
    - Pathogenic Microbiology 177
    - Microbial Biotechnology 2
    - Food Microbiology 16
    - Industrial Microbiology 4
    - Environmental Microbiology 2
  - Biotechnology
    - Bio Genetic Engineering 4
    - Recombinant DNA 9
    - Cloning 6
    - PCR 8
    - Gel Electrophoresis 21
    - DNA Sequencing 6
    - Gene Therapy 3
    - CRISPR 9
    - Stem Cells 9
    - Bioreactors 5
    - Fermentation 5
    - Bioinformatics 6
    - GMOs 12
    - Proteomics 1
    - Metabolomics 3
  - Molecular Biology
    - Biological Biomolecules 17
    - Carbohydrates 29
    - Biochemical Lipids 2
    - Bio Proteins 12
    - Bio Enzymes 3
    - Bio Nucleic Acids 21
    - Biochemical Vitamins 36
    - Bio Minerals 5
    - Bio Metabolism 47
    - Cellular Respiration 112
    - Nitrogen Metabolism 9
    - Bio Hormones 13
    - Signal Transduction 6
  - Immunology
    - Innate Immunity 16
    - Adaptive Immunity 12
    - Antigens 11
    - Antibodies 10
    - Lymphatic System 26
    - B Cells 31
    - T Cells 6
    - Immune Response 26
    - Cytokines 16
    - Vaccination 17
    - Immunodeficiency 23
    - Hypersensitivity 30
    - Autoimmunity 20
    - Transplant Immunology 8
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  - Developmental Biology
    - Gametogenesis 10
    - Fertilization 48
    - Cleavage 20
    - Gastrulation 5
    - Organogenesis 25
    - Metamorphosis 15
    - Regeneration 3
    - Growth 18
    - Aging 30
- Earth and Space Science
  - Geology
    - Minerals 52
    - Rocks 18
    - Geological Rock Cycle 45
    - Plate Tectonics 107
    - Geological Volcanoes 34
    - Geological Earthquakes 22
    - Weathering 14
    - Erosion 35
    - Soil 8
    - Fossils 8
    - Geological Time 23
    - Geomorphology 10
    - Natural Resources 28
  - Meteorology
    - Metrological Atmosphere 12
    - Metrological Weather 52
    - Climate 5
    - Clouds 14
    - Precipitation 2
    - Air Pressure 21
    - Wind 4
    - Storms 8
    - Hurricanes 7
    - Metrological Tornadoes 15
    - Weather Forecasting 7
    - Metrological Climate Change 3
  - Oceanography
    - Ocean Basins 21
    - Waves 6
    - Tides 4
    - Currents 5
    - Marine Life 30
    - Coral Reefs 19
    - Seafloor Spreading 8
    - Salinity 7
    - Marine Resources 14
    - Ocean Pollution 9
    - Climate Impact 6
  - Environmental Geoscience
    - Environmental Climate Change 1
    - Natural Hazards 26
    - Pollution 13
    - Environmental Impact 31
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    - Renewable Energy 76
    - Sustainability 41
    - Conservation 37
    - Land Use 6
  - Paleontology
    - Fossilization 6
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    - Stratigraphy 13
    - Extinction Events 17
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  - Climate Science
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  - Hydrology
    - Hydro Water Cycle 5
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    - Runoff 6
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    - Watersheds 2
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    - Water Quality 27
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  - Natural Disasters
    - Earthquakes 6
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    - Floods 6
    - Droughts 1
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    - Tornadoes 4
    - Landslides 3
    - Avalanches 2
    - Wildfires 12
    - Heatwaves 3
    - Blizzards 1
  - Earth Systems and Cycles
    - Geosphere 4
    - Hydrosphere 3
    - Atmosphere 11
    - Biosphere 5
    - Rock Cycle 15
    - Earthy Water Cycle 9
    - Carbon Cycle 5
    - Nitrogen Cycle 14
    - Energy Flow 5
    - Climate System 3
  - Soil Science
    - Soil Formation 3
    - Soil Profile 16
    - Soil Properties 4
    - Soil Fertility 14
    - Soil Physics 1
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    - Soil Erosion 4
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- Astronomy
  - Observational Astronomy
    - History of Astronomy 17
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  - Solar System
    - Sun 3
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    - Earth 2
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    - Asteroids 14
    - Comets 10
    - Meteoroids 5
    - Kuiper Belt 2
  - Stars and Stellar Evolution
    - Star Formation 1
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    - Red Giants 2
    - Black Holes 5
    - Stellar Nucleosynthesis 2
    - Variable Stars 2
  - Galaxies
    - Nebulae 1
    - Quasars 4
    - Galaxy Black Holes 2
  - Cosmology
    - Big Bang 22
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    - Dark Energy 1
    - Cosmic Microwave 3
    - Large Scale 1
    - Galaxy Formation 5
    - Universe Expansion 2
    - Cosmological Models 4
  - Exoplanets
    - Detection Methods 1
    - Planet Types 6
    - Atmospheres 1
  - Astrobiology
    - Extremophiles 1
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    - Biosignatures 4
    - Life Detection 2
    - Mars Life 3
    - Space Missions 5
  - Astronomical Instruments
    - Radio Telescope 2
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    - Photometer 4
    - Planetarium 1
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  - Space Exploration and Missions
    - Spacecraft 3
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    - Space Probes 3
    - Space Telescopes 1
    - Manned Missions 2
    - Lunar Missions 6
    - Mars Missions 2
    - Space Stations 3
    - Space Agencies 3
  - Celestial Mechanics and Orbits
    - Orbital Motion 7
    - Kepler Laws 3
    - Newton Laws 60
    - Orbital Gravity 1
    - Eclipses 7
    - Retrograde Motion 3
    - Perturbations 5
    - Orbital Resonance 5
Math

Classification Quizzes, Questions & Answers

Recent Classification Quizzes

Are You An Animal Expert?

Are you an Animal expert?

Do you know enough about Animals? Take this quiz and find out

Questions: 15 | Attempts: 928 | Last updated: Jan 18, 2023

Sample Question
Which species can be described as "fierce solitary cats that are fast hunters"?

Northern Cardinal

Emperor Penguin

African Wild Cat

Ladybug

Test Your Knowledge On Animal

Test your knowledge on Animal

It’s time to answer some cool questions about Animals

Questions: 15 | Attempts: 205 | Last updated: Mar 18, 2023

Sample Question
Which of the following is a insect?

Junco

Jackass Penguin

Gerbil

Grasshopper

Animal Trivia Quiz: Can You Identify Mammals?

Are you ready for the most challenging trivia quiz on animals? Animals offer us pure, unconditional love, and even wild animals can keep us grounded. There are so many different kinds of animals. During this quiz, you will be...

Questions: 15 | Attempts: 2312 | Last updated: Mar 22, 2023

Sample Question
Which of the following animals is a mammal?

Otter

Silkworm

Moray Eel

Water Stride

Classification Quiz

Explore the Classification Quiz to understand species classifications, traits of mammals, and characteristics of dinosaurs. Assess your knowledge on biological classifications and animal characteristics, enhancing your...

Questions: 10 | Attempts: 1516 | Last updated: Mar 21, 2023

Sample Question
What are the four different classifications of species?

Flowers, Dogs, Trees, Cats

Plants, Mammals, Insects, Birds

People, Animals, Plants, Trees

Plants, People, Animals, Bugs

Chapter 6 Introduction To Animals Vocabulary Test

Chapter 6 Introduction to Animals Vocabulary Test

This 'Chapter 6 Introduction to Animals Vocabulary Test' assesses key biological concepts about animals. It covers terms like herbivore, omnivore, and invertebrate, enhancing understanding of animal biology and classification,...

Questions: 21 | Attempts: 148 | Last updated: Mar 22, 2023

What Forest Animal Are You?! :)

What Forest Animal are you?! :)

This quiz will determine what forest creature you are in the personality of you and that creature. If you don't want to find out what forest animal you are, then just do this to learn facts about animals! :)

Questions: 6 | Attempts: 2358 | Last updated: Mar 20, 2022

Sample Question
Which of these describes you?

I am shy.

I am very smart.

I am exciting.

Chapter 5 Quiz Bio 201

A quiz that goes over some questions that we discussed over our chapter 5 unit. The test is quite basic for the most part, it refreshes students over most of the main concepts that we went over. It should not come off as...

Questions: 11 | Attempts: 207 | Last updated: Mar 21, 2023

Sample Question
The study of tissues (microscopic anatomy) is known as

Hematology

Arthrology

Histology

Pathology

Unit 8 Target 1: Classification And Cladograms

Unit 8 Target 1: Classification and Cladograms

Explore the intricacies of evolutionary biology in 'Unit 8 Target 1: Classification and Cladograms'. This quiz assesses understanding of species relationships through cladograms, protein sequences, and morphological traits,...

Questions: 12 | Attempts: 724 | Last updated: Mar 20, 2023

Sample Question
Cytochrome C is a protein used in the electron transport chain. This table shows short sections of Cytochrome C’s amino acid sequences (using single letter abbreviations) for 5 different organisms.Use this data to determine which organism most likely shares the most recent common ancestor with humans.

Organism 1

Organism 2

Organism 3

Organism 4

Rare Breeds Quiz!

Explore the Rare Breeds Quiz! Identify unique and lesser-known dog breeds such as Shikoku, Finnish Spitz, Azawakh, Finnish Hound, Tosa Inu, and Boerboel. Enhance your knowledge of canine diversity and breed characteristics in an...

Questions: 10 | Attempts: 744 | Last updated: Mar 21, 2023

Sample Question
What Breed is this?

Shikoku

Shiba Inu

East Siberian Laika

West Siberian Laika

Vet Science Volume Quiz

Veterinary science is the study of the diagnosis, treatment and medication of animals. Are you a Vet or training to be one? Have you well mastered this science? The quiz below gauges how much and how good you are.

Questions: 12 | Attempts: 631 | Last updated: Mar 20, 2023

Sample Question
How many pints are in a quart?

1 1

2

3

4

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