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  1. Mitochondria and Energy Production
    by Dr. Osama M. Khaled — published Jun 15, 2026 — last modified Jun 15, 2026 08:03 AM — filed under: Year 8, Year 11
    This quiz covers the powerhouse of the cell: ATP production, the roles of cristae and matrix, the outer and inner membranes, fat droplet storage, and why ...
    Located in Biology / Cell Structure
  2. Movement through the Cell Membrane
    by Dr. Osama M. Khaled — published Nov 07, 2022 — last modified Aug 02, 2024 10:59 PM — filed under: Year 8
    In addition to providing protection, shape, and strength to the cell, the membrane helps regulate the flow of materials in and out of the cell
    Located in Biology / Cell Structure
  3. Multiply two integers that have different signs
    by Dr. Osama M. Khaled — published Apr 29, 2026 — last modified Apr 29, 2026 08:57 PM — filed under: Year 8
    To multiply a positive integer and a negative integer,multiply their absolute values.Then make the final answer negative.
    Located in Mathematics / … / Integers / Multiplying Integers
  4. Multiply two integers that have the same sign
    by Dr. Osama M. Khaled — published Apr 30, 2026 — last modified Apr 30, 2026 09:09 PM — filed under: Year 8
    To multiply two integers that have the same sign,multiply their absolute values.The final answer is positive.
    Located in Mathematics / … / Integers / Multiplying Integers
  5. Order of Operations and Estimation (vocabulary)
    by Dr. Osama M. Khaled — published May 08, 2026 — last modified May 09, 2026 04:26 AM — filed under: Year 8
    Learn important vocabulary for order of operations and estimation for integers
    Located in Mathematics / … / Integers / Order of Operations and Estimation
  6. Organelles – Structure and Function
    by Dr. Osama M. Khaled — published Jun 15, 2026 — last modified Jun 15, 2026 06:30 AM — filed under: Year 8, Year 11
    This quiz covers the major organelles found in animal and plant cells: nucleus, nucleolus, endoplasmic reticulum (rough and smooth), ribosomes, Golgi ...
    Located in Biology / Cell Structure
  7. Perform several multiplications to evaluate expressions
    by Dr. Osama M. Khaled — published May 02, 2026 — last modified May 05, 2026 08:05 AM — filed under: Year 8
    To evaluate expressions that contain several multiplications,we make repeated use of the rules for multiplying two integers.
    Located in Mathematics / … / Integers / Multiplying Integers
  8. Plant Cell vs. Animal Cell
    by Dr. Osama M. Khaled — published Jun 15, 2026 — last modified Jun 15, 2026 09:07 AM — filed under: Year 8, Year 11
    Compare-and-contrast quiz on structures exclusive to plant cells (cell wall, chloroplasts, large central vacuole, plasmodesmata, tonoplast) vs. animal cells ...
    Located in Biology / Cell Structure
  9. Pressure
    by Dr. Osama M. Khaled — published Sep 09, 2024 — last modified Sep 09, 2024 08:38 PM — filed under: Year 8, Year 11, Year 12
    Pressure is the force divided by the area over which the force is applied
    Located in Physics / Solids
  10. Pressure in a liquid
    by Dr. Osama M. Khaled — published Jul 16, 2025 — last modified Jul 19, 2025 10:28 PM — filed under: Year 7, Year 8
    Pressure in a liquid increases with depth below the surface
    Located in Physics / Liquids and Gases
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