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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 39
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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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7th Grade Chemistry Quizzes, Questions & Answers
Recent Chemistry Quizzes
Do you like chemistry? Chemistry is the systematic discipline concerned with elements and compounds that are made up of matter. It studies their composition, structure properties, behavior, and transformations during exposure...
Questions: 50 | Attempts: 736 | Last updated: Mar 19, 2025
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Sample QuestionThe rapid oxidation of a substance, accompanied by the production of heat and light is called?
This quiz, titled 'Chemistry of the atom,' assesses key concepts related to atomic structure, focusing on the locations and charges of protons, neutrons, and electrons. It is designed for Biology students to understand...
Questions: 8 | Attempts: 101 | Last updated: Feb 23, 2025
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Sample QuestionWhere are protons located?
Explore fundamental chemistry concepts in 'Chemistry Revision - 1'. This quiz assesses knowledge on chemical reactions, periodic table elements, and essential properties of substances. Enhance your understanding of chemistry...
Questions: 15 | Attempts: 79 | Last updated: Feb 23, 2025
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Sample QuestionThe reactants of the reaction “hydrogen + oxygen → water” is / are
In the field of Chemistry, a chemical change is referred to as an occurrence where one substance combines with a different substance and forms a new substance or where the mixture brings about two or more substances.
What do you...
Questions: 10 | Attempts: 190 | Last updated: Mar 18, 2025
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Sample QuestionWhat can reverse a chemical change?
Chemical change means either reaction between two or more substances to form a new compound or the break down of a compound to simpler compounds. Chemical changes are usually influenced by condition which speeds up or slows...
Questions: 10 | Attempts: 206 | Last updated: Mar 22, 2025
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Sample QuestionWhich of these is not an inorganic change?
Since we are familiar with how chemical changes happen, there are aftermath of the combination of two substances to form a new substance. Effects of chemical changes can be beneficial or harmful to surroundings. What are the...
Questions: 10 | Attempts: 218 | Last updated: Mar 21, 2025
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Sample QuestionWhich of these is not a characteristic of chemical changes?
Chemical Changes occur as a result of combination of two substances through chemical reactions to form new substances. These changes occur after there is a reaction which may gives out heat or absorb heat. Chemical change exists...
Questions: 10 | Attempts: 259 | Last updated: Mar 22, 2025
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Sample QuestionWhich of these is the reaction where heat is absorbed?
Mixtures can occur in different forms, and sometimes they create a solution that can be separated and other times the separation is not so easy. What have you learned so far about mixtures from your 7th-grade science class? Take...
Questions: 49 | Attempts: 978 | Last updated: Apr 2, 2025
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Sample QuestionA mixture is ...
Chemistry is branch of science that deals with the study of matter and changes that matter undergoes under different conditions. This branch is applied in industries operating on petroleum, pharmaceutical, breweries etc. This...
Questions: 10 | Attempts: 167 | Last updated: Mar 19, 2025
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Sample QuestionWhat is the symbol of the element named Iron?
What is water chemistry? This quiz may be a challenge for a beginner in chemistry, but it is worth a try. Water is an inorganic, transparent, odorless, tasteless, and almost colorless chemical substance. Water is essential for...
Questions: 15 | Attempts: 486 | Last updated: Mar 22, 2025
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Sample QuestionIdentify the statement that is correct about the number of protons and electrons in an atom:
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