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- Chemistry
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    - States of Matter 202
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    - Periodic Table 231
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    - Coordination Compounds 23
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    - s Block Elements 1
    - p Block Elements 1
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    - Acids and Bases 74
    - Salt Analysis 28
  - Organic Chemistry
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    - Structural Isomerism 13
    - Nomenclature 83
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    - Alcohols 10
    - Aldehydes 3
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    - Amines 3
    - Organic Biomolecules 17
    - Organic Reactions 15
  - Analytical Chemistry
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    - Titrations 3
    - Gravimetric Analysis 5
    - Chromatography 5
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    - Electroanalytical Methods 10
    - Mass Spectrometry 5
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    - Separation Techniques 24
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    - Proteins 31
    - Enzymes 24
    - Lipids 49
    - Nucleic Acids 8
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    - Vitamins 35
    - Hormones 17
    - Cell Signaling 16
    - Genetic Code 4
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    - Water Pollution 20
    - Soil Pollution 4
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    - Acid Rain 8
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  - Polymer Chemistry
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    - Polymer Properties 1
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    - Statistical Mechanics 12
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    - Reaction Dynamics 125
    - Electronic Structure 57
    - Molecular Dynamics 18
    - Spectroscopy Theory 1
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    - 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
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  - 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
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    - Cell Theory 100
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    - Cell Organelles 63
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    - Ribosomes 13
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    - Cytoskeleton 12
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    - Transport Mechanisms 93
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  - Evolution
    - Origin of Life 47
    - Theories of Evolution 13
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    - Variation 27
    - Adaptation 23
    - Speciation 9
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    - Comparative Anatomy 31
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    - Food Chains 98
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    - Ecological Energy Flow 24
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    - Biodiversity 183
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    - Succession 24
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    - Human Impact 37
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    - Skeletal System 252
    - Muscular System 161
    - Nervous System 340
    - Endocrine System 186
    - Circulatory System 207
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    - Digestive System 128
    - Excretory System 73
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  - Botany Plant Biology
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    - Economic Botany 49
    - Seed Biology 6
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    - Plant Adaptations 53
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    - Classification 267
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    - Platyhelminthes 34
    - Nematoda 17
    - Annelida 16
    - Arthropoda 26
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    - Echinodermata 19
    - Chordata 13
    - Fish 27
    - Amphibians 28
    - Reptiles 41
    - Birds 61
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    - Parasitology 45
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    - Recombinant DNA 9
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    - 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
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    - Signal Transduction 6
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    - Growth 19
    - Aging 30
- Earth and Space Science
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    - Geological Rock Cycle 45
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    - Soil 8
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    - 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
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    - Metrological Tornadoes 15
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  - Oceanography
    - Ocean Basins 21
    - Waves 6
    - Tides 4
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    - Marine Life 30
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    - Wildfires 12
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  - Earth Systems and Cycles
    - Geosphere 4
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    - 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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- Astronomy
  - Observational Astronomy
    - History of Astronomy 17
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  - Solar System
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    - Earth 2
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    - Asteroids 14
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    - Galaxy Black Holes 2
  - Cosmology
    - Big Bang 22
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    - Dark Energy 1
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    - Large Scale 1
    - Galaxy Formation 5
    - Universe Expansion 2
    - Cosmological Models 4
  - Exoplanets
    - Detection Methods 1
    - Planet Types 6
    - Atmospheres 1
  - Astrobiology
    - Extremophiles 1
    - Habitable Zones 1
    - Biosignatures 4
    - Life Detection 2
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    - Space Missions 5
  - Astronomical Instruments
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    - Planetarium 1
    - Sextant 4
  - Space Exploration and Missions
    - Spacecraft 3
    - Satellites 4
    - Space Probes 3
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    - 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
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4th Grade Waste Management Quizzes, Questions & Answers

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The All You Need To Know About Earth Day/Recycling Quiz

Take this quiz and find out how much you know about recycling and Earth Day!

Questions: 10 | Attempts: 475 | Last updated: Mar 21, 2023

Sample Question
How much pollutants can one tree filter from the air each year?

30 pounds

Depends on if the tree enjoys sucking up the tons of deadly, disgusting, dirty air that us humans give out...

10 pounds

60 pounds