Search results 3655 items matching your search terms. Filter the results Item type Select All/None Collection File Folder Image Link Movie Page Question Quiz Quiz History New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically Electricity Usage by Dr. Osama M. Khaled — published Apr 21, 2025 Located in Mathematics / … / Estimation with Percent / Estimate answers to percent problems involving 50%, 25%, and 15% Electron microscope was invented in the early 1890s by Dr. Osama M. Khaled — published May 17, 2022 — last modified May 30, 2025 09:04 PM Located in Biology / Cell Structure / Microscopes Electron Orbits by Dr. Osama M. Khaled — published Jun 06, 2024 — last modified Jul 13, 2024 12:58 PM — filed under: Year 10 Defining the orbits of electrons and the maximum number at any level Located in Physics / Atoms and Molecules electron_orbit.gif by Dr. Osama M. Khaled — last modified Jun 06, 2024 09:02 PM Located in Physics / … / Electron Orbits / Boron (B) has five electrons. How many will be in its outer orbit? Element x belongs to set A by Dr. Osama M. Khaled — published Jul 02, 2022 — last modified May 29, 2025 07:42 PM Located in Mathematics / … / Sets / Elementary Set Theory - Quick Review Element x does not belong to set A by Dr. Osama M. Khaled — published Jul 02, 2022 — last modified May 29, 2025 07:43 PM Located in Mathematics / … / Sets / Elementary Set Theory - Quick Review Elemental carbon by Dr. Osama M. Khaled — published Jul 28, 2022 — last modified May 30, 2025 09:04 PM Located in Chemistry / Introduction / Matter Basics Elementary Set Theory - Quick Review by Dr. Osama M. Khaled — published Jul 02, 2022 — last modified Jul 13, 2024 10:19 PM — filed under: Year 10 Basics in Elementary Set Theory Located in Mathematics / Discrete Mathematics / Sets Elements always combine in certain fixed proportions when they form a compound by Dr. Osama M. Khaled — published Jun 02, 2024 Located in Physics / Atoms and Molecules / Atoms and Molecules Elements and Compounds by Dr. Osama M. Khaled — published May 30, 2024 — last modified Jul 13, 2024 12:55 PM — filed under: Year 9 All of the materials and substances that we experience are made up of elements Located in Physics / Atoms and Molecules < Previous 10 items 1 ... 100 101 102 103 104 105 106 ... 366 Next 10 items > Subscribe to an always-updated RSS feed.
