Go Math Science

by Dr. Osama M. Khaled — published May 21, 2026 — last modified May 21, 2026 10:08 PM — filed under: Year 10

Dimensional analysis, SI units, metric prefixes, conversion factors, scientific notation, temperature conversions, density-related measurements, and important ...

Located in Chemistry / Measurements

Temprature and Density Units

by Dr. Osama M. Khaled — published May 21, 2026 — last modified May 21, 2026 10:36 PM — filed under: Year 10

Temperature scales, temperature conversions, density calculations, floating and sinking behavior, and related chemistry vocabulary

Located in Chemistry / Measurements

Definitions

by Dr. Osama M. Khaled — published Jun 22, 2022 — last modified Jul 13, 2024 10:36 PM — filed under: Year 10

Important definitions to understand atoms, molecules, and ions

Located in Chemistry / Atoms, Molecules, and Ions

Molecules and Chemical Nomenclature

by Dr. Osama M. Khaled — published Aug 16, 2023 — last modified Jul 13, 2024 09:48 PM — filed under: Year 10

By taking this quiz, you should be able to define a molecule, name simple molecules based on their formulas, and determine a formula of a molecule based on its ...

Located in Chemistry / Atoms, Molecules, and Ions

Common names of chemical molecules

by Dr. Osama M. Khaled — published Aug 22, 2023 — last modified Jul 13, 2024 09:47 PM — filed under: Year 10

Some molecules which have some common names

Located in Chemistry / Atoms, Molecules, and Ions

Atoms, Molecules, and Ions: Exercises

by Dr. Osama M. Khaled — published Aug 22, 2023 — last modified Jul 13, 2024 09:47 PM — filed under: Year 10

Test your knowledge in atoms, molecules and Ions

Located in Chemistry / Atoms, Molecules, and Ions

Definitions

by Dr. Osama M. Khaled — published Jun 21, 2022 — last modified Jul 13, 2024 10:36 PM — filed under: Year 10

Important definitions in chemical reactions

Located in Chemistry / Chemical Reactions and Equations

Chemical Equation

by Dr. Osama M. Khaled — published Jun 20, 2022 — last modified Jul 13, 2024 10:37 PM — filed under: Year 10

Chemical Equations and its parts

Located in Chemistry / Chemical Reactions and Equations

$Chemical Equation$

Catalysts

by Dr. Osama M. Khaled — published Oct 12, 2021 — last modified Jul 13, 2024 10:50 PM — filed under: Year 10

Catalysts are very important in industry. They speed up a chemical reaction by lowering the amount of energy you need to get one going. They are the backbone ...

Located in Chemistry / Chemical Reactions and Equations

Single- and Double-Displacement Reactions

by Dr. Osama M. Khaled — published Dec 28, 2023 — last modified Jul 13, 2024 01:08 PM — filed under: Year 10

Recognize chemical reactions as single-replacement reactions and double-replacement reactions

Located in Chemistry / Chemical Reactions and Equations

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