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Quizzes > Science

Hydro meaning in biology: 7th grade science prefix quiz

Quick hydro prefix quiz to test your science vocab. Instant results.

Editorial: Review CompletedCreated By: Varun Das AghoriUpdated Aug 28, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration of layered science icons and text for free 7th grade prefixes roots suffixes quiz on teal background

This quiz helps you understand the hydro meaning in biology and use the prefix to break down science terms. As you practice, you will get quick feedback each time and can explore related roots like chlor prefix meaning or build skills with a broader prefix quiz.

What does the prefix bio- mean?
Earth
Life
Water
Heat
The prefix bio- is derived from the Greek word bios, which means life. It appears in many scientific terms such as biology, biomechanics, and biosphere. Understanding this prefix helps decode vocabulary related to living organisms. .
What does the prefix photo- mean?
Light
Sound
Heat
Movement
The prefix photo- comes from the Greek word ph?tos, meaning light. It is used in words like photography (writing with light), photosynthesis (using light to synthesize food), and photon. Recognizing this prefix helps in understanding terms related to light. .
What concept is indicated by the root thermo-?
Cold
Light
Motion
Heat
The root thermo- originates from the Greek word thermos, meaning heat. It is used in terms such as thermometer (measure of heat), thermodynamics (study of heat and energy), and geothermal (heat from the earth). This root indicates a relationship with temperature and heat processes. .
What does the suffix -logy signify?
Study of
Process of
Disease of
Dislike of
The suffix -logy is from the Greek word logia, meaning study or discourse. It is used in subjects like biology (study of life), geology (study of the earth), and zoology (study of animals). Recognizing -logy helps identify fields of study. .
What does the prefix hydro- mean?
Water
Air
Earth
Fire
The prefix hydro- comes from the Greek word hyd?r, meaning water. It appears in words like hydrology (study of water), hydrogen (water-former), and hydroelectric (electricity from water). Understanding this prefix helps in identifying terms related to water. .
What does the suffix -phobia mean?
Love of
Movement of
Study of
Fear of
The suffix -phobia originates from the Greek word phobos, meaning fear. It is used in terms like arachnophobia (fear of spiders), hydrophobia (fear of water or rabies), and claustrophobia (fear of confined spaces). This suffix indicates an irrational fear of something. .
What does the prefix micro- mean?
Large
Water
Small
Light
The prefix micro- is derived from the Greek word mikros, which means small. It appears in words like microscope (instrument for viewing small objects), microorganism (tiny organism), and microprocessor (small processor). Recognizing this prefix helps in understanding small-scale concepts. .
What does the suffix -itis indicate?
Fear of
Death of
Study of
Inflammation
The suffix -itis comes from the Greek word itis, meaning inflammation. It is used in medical terms like arthritis (inflammation of joints), bronchitis (inflammation of the bronchial tubes), and tonsillitis (inflammation of the tonsils). Knowing this suffix helps identify diseases involving inflammation. .
What does the prefix hetero- mean?
Same
False
Different
Small
The prefix hetero- originates from the Greek word heteros, meaning different or other. It is used in terms like heterogeneous (composed of different kinds), heterosexual (attraction to the opposite sex), and heterotroph (organism that consumes other organisms for food). Recognizing this prefix helps understand diversity or difference. .
What does the prefix homo- mean?
Large
Same
Outside
Different
The prefix homo- comes from the Greek word homos, meaning same. It is seen in words like homogeneous (of the same kind), homozygous (having identical alleles), and homeostasis (same or stable state). This prefix indicates similarity or uniformity. .
What does the suffix -scopy mean?
Fear of
Viewing or examining
Breakdown of
Study of
The suffix -scopy is derived from the Greek word skopos, meaning to look or examine. It appears in terms like microscopy (examining small objects), endoscopy (viewing internal organs), and spectroscopy (study of interaction with electromagnetic radiation). Understanding this suffix helps identify examination techniques. .
What concept does the root cardio- represent?
Kidney
Lung
Heart
Liver
The root cardio- comes from the Greek word kardía, meaning heart. It is used in words like cardiology (study of the heart), cardiovascular (relating to heart and vessels), and pericardium (membrane around the heart). Recognizing this root helps in identifying terms related to the heart. .
What does the prefix pseudo- mean?
Self
False
True
After
The prefix pseudo- is derived from the Greek word pseud?s, meaning false. It appears in terms like pseudoscience (false science), pseudonym (false name), and pseudopod (false foot). This prefix indicates something that is not genuine or is deceptive. .
What does the suffix -lysis mean?
Fear
Movement
Breakdown
Study of
The suffix -lysis comes from the Greek word lysis, meaning loosening or breakdown. It is used in words like hydrolysis (chemical breakdown by water), dialysis (separation of substances), and autolysis (self-decomposition). Understanding this suffix helps identify processes of decomposition or separation. .
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Study Outcomes

  1. Understand Key Prefixes -

    Recognize and explain the meaning of common science prefixes such as bio- and geo- in 7th grade science vocabulary.

  2. Identify Roots and Suffixes -

    Pinpoint essential roots and suffixes in biology and earth science terms to build a stronger word base.

  3. Apply Word-Building Skills -

    Use prefixes, roots, and suffixes to decode and construct new scientific terms confidently.

  4. Differentiate Similar Terms -

    Distinguish between terms with similar components and clarify their distinct scientific meanings.

  5. Analyze Term Structure -

    Break down complex vocabulary into its parts to infer definitions and improve comprehension.

  6. Enhance Quiz Performance -

    Leverage your vocabulary knowledge to answer 7th grade science quiz questions more accurately and efficiently.

Cheat Sheet

  1. Understanding "bio-" and "geo-" -

    According to Merriam-Webster, the prefix "bio-" means life and "geo-" refers to earth, which forms words like "biology" (bio+logy = study of life) and "geology" (geo+logy = study of earth). A handy mnemonic is "BIOfuel keeps life going" and "GEOsats circle the ground" to recall these prefixes.

  2. Key Root "therm" Means Heat -

    The National Science Teaching Association notes that the root "therm" signifies heat, evident in words like "thermometer" (temperature measure) and "thermostat" (heat controller). Remember that "therm" rhymes with "warm" for quick recall.

  3. Suffixes "-logy" vs. "-graphy" -

    In academic definitions, "-logy" means study of and "-graphy" means writing or representation, turning "biology" into the study of life and "biography" into the written life story. A mnemonic is "oLOGists study, GRAPHers write."

  4. Combining Forms Like "hydro-" and "-phobia" -

    Hydro- means water and -phobia means fear, so "hydrophobia" literally translates to fear of water, demonstrating how scientific terms are constructed from basic building blocks. Dissecting terms into prefixes, roots, and suffixes reveals definitions instantly.

  5. Use Mnemonics for Lasting Memory -

    Create a story linking parts, such as "Bio Bob studies logs" to recall "biology," and color-code flashcards for each prefix, root, and suffix. Regular self-quizzing taps into active recall, proven by educational research to strengthen retention.

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