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States of Matter 107
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Solutions 61
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Nomenclature 15
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Hydrocarbons 13
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Alcohols 3
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Amines 2
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Polymers 5
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Biomolecules 13
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Proteins 26
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Enzymes 4
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Lipids 14
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Metabolism 40
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Vitamins 5
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Hormones 1
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Alloys 1
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Nucleus 1
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Cell Cycle 18
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Genomics 1
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Ecosystem 35
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Biomes 24
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Food Chains 15
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Biodiversity 23
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Habitat 4
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Skeletal System 116
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Nervous System 111
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Porifera 6
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Cnidaria 6
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Nematoda 6
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Annelida 7
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Arthropoda 12
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Mollusca 4
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Chordata 5
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Fish 76
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Amphibians 10
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Reptiles 14
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Birds 2
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Mammals 106
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Anatomy 17
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Physiology 20
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Reproduction 23
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Behavior 63
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Bacteriology 32
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Virology 33
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Mycology 16
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Parasitology 50
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GMOs 4
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Bio Enzymes 21
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Bio Hormones 32
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B Cells 1
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Clouds 1
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Marine Life 47
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Wetlands 5
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Tsunamis 1
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6th Grade Circulatory System Quizzes, Questions & Answers
Recent Circulatory System Quizzes
Do you know about blood vessels that are present in the human body? Take our informative quiz on Blood Vessels and answer the questions properly. Welcome to this scientific quiz, where we'll take a look under the surface of...
Questions: 10 | Attempts: 2284 | Last updated: Aug 2, 2025
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Sample QuestionWhich vessel is highlighted?
They’re the vessels on which your blood embarks on the journey from your heart to the rest of the organs in your body, so you’d be doing well to educate yourself on what they do exactly and how they operate. Take the...
Questions: 53 | Attempts: 10931 | Last updated: Feb 22, 2025
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Sample QuestionBlood vessels are composed of and it what order?
This quiz covers key aspects of blood functions within the human circulatory system, focusing on its roles in oxygen transport, immune defense, and clotting processes.
Questions: 8 | Attempts: 957 | Last updated: Mar 21, 2025
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Sample QuestionDarah yang berfungsi mengangkut oksigen ke seluruh jaringan tubuh adalah….
The heart is a very important organ in the human body as it is responsible for pumping blood throughout the body. The heart valves function like one-way doors which allow blood flow through in the forward direction but prevent...
Questions: 36 | Attempts: 199 | Last updated: Mar 22, 2025
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Sample QuestionThis is the mass of tissue from the sternum to the vertebral column between the lungs.
Explore the functions of the circulatory system in this engaging 5th grade science quiz from Free World U. Students will learn about the transportation of blood, the vascular system, and other vital functions related to the heart...
Questions: 15 | Attempts: 4071 | Last updated: May 9, 2025
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Sample QuestionRelating to the vessels, veins and arteries that pump blood throughout the body.
This quiz will test your knowledge of the heart. It is one of the most important muscles of the body. Be sure you respect it and eat well and exercise. Remember, it is okay to treat yourself now and then, but a proper diet makes...
Questions: 15 | Attempts: 3195 | Last updated: Oct 4, 2025
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Sample QuestionThe heart weighs ________________________________________.
We welcome you to take this biology quiz to learn more about the human heart. Our hearts keep our bodies moving and grooving throughout our daily lives, pumping blood to all of our vital organs and keeping them functioning....
Questions: 19 | Attempts: 9040 | Last updated: Apr 23, 2025
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Sample QuestionIs smoking good for your heart?
The heart is the most important part of the human body and being that we just learnt the parts that make up the heart and aid it in meeting its targets, you may be in need for revision material to help you understand it better....
Questions: 8 | Attempts: 3021 | Last updated: Apr 22, 2025
Welcome to our Heart Labeling Quiz, where you'll dive into the intricate anatomy of one of the body's most vital organs. This quiz offers an engaging opportunity to explore the structures and functions of the heart in...
Questions: 12 | Attempts: 131568 | Last updated: Dec 28, 2025
There is a lot we are told about the heart, and some of these are misconceptions and some pure facts. Why do you know about the most important organ in your body? Can you answer these trivia questions about the heart? Take up the...
Questions: 15 | Attempts: 687 | Last updated: Oct 16, 2025
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Sample QuestionYour heart pumps 8,000 gallons of blood every day.
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