Go Math Science

by Dr. Osama M. Khaled — published Aug 19, 2026 — last modified Aug 21, 2026 11:23 AM — filed under: Year 9

Explore irrational numbers, the real number system, and the property of denseness.

Located in Mathematics / Calculus / Discovery of Real Numbers: Through Traditional Algebra

Algebraic Properties and Order Relations of Real Numbers

by Dr. Osama M. Khaled — published Aug 19, 2026 — last modified Aug 21, 2026 11:23 AM — filed under: Year 9, Year 10

Covers the algebraic properties of real numbers (commutative, associative, identity, inverse, distributive) and the order properties used to work with ...

Located in Mathematics / Calculus / Discovery of Real Numbers: Through Traditional Algebra

Cell Division Review

by Dr. Osama M. Khaled — published Jun 16, 2026 — last modified Jun 16, 2026 06:25 PM — filed under: Year 8, Year 9, Year 11, Year 12

Comprehensive mixed quiz spanning binary fission, mitosis, and meiosis

Located in Biology / Cell Division

Water absorption and transmission

by Dr. Osama M. Khaled — published Oct 18, 2021 — last modified Jul 13, 2024 10:49 PM — filed under: Year 9

Absorption and transmission of water and mineral salts in plants is a very important process for plant survival. How much do you know about it?

Located in Biology / Botany

Plant parts

by Dr. Osama M. Khaled — published Oct 15, 2021 — last modified Jul 13, 2024 10:50 PM — filed under: Year 9

Do you know plant parts? Take this quiz and refresh your knowledge

Located in Biology / Botany

Definitions

by Dr. Osama M. Khaled — published Oct 30, 2021 — last modified Jul 13, 2024 10:48 PM — filed under: Year 9

Learn the basic terms to endeavour the journey of Chemistry

Located in Chemistry / Introduction

Matter Basics

by Dr. Osama M. Khaled — published Nov 02, 2021 — last modified Jul 13, 2024 10:48 PM — filed under: Year 9

Test your knowledge about some fundamental concepts in matter

Located in Chemistry / Introduction

Atomic Theory

by admin — published Sep 11, 2022 — last modified Jul 13, 2024 10:06 PM — filed under: Year 9

State the modern atomic theory and learn how atoms are constructed.

Located in Chemistry / Atoms, Molecules, and Ions

Names and Symbols of Common Elements

by Dr. Osama M. Khaled — published Sep 18, 2022 — last modified Jul 13, 2024 10:06 PM — filed under: Year 9

Test your knowledge and memory identifying symbols of comment elements

Located in Chemistry / Atoms, Molecules, and Ions

Dissociation, Ionic Equations, and Spectator Ions

by Dr. Osama M. Khaled — published Nov 09, 2025 — last modified Nov 18, 2025 07:39 AM — filed under: Year 9

One important aspect about ionic compounds that differs from molecular compounds has to do with dissolving in a liquid, such as water

Located in Chemistry / Chemical Reactions and Equations

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