Welcome to Science Lesson Resources for Teachers and Parents!

  Simulators - Explerify.com

 Here is a big selection of clear virtual experiments that can explain and show many concepts from physics. Electromagnetism Simulation - Javalab

Nice and free QR code genrator:  Free Online QR Code Generator | Adobe Express Generates smaller QRs with a logo inside. But be careful and doublecheck your QRs. If you generate a few codes, it can just replace one link for another. Select a type of QR Code | Online QR Generator Select a type of QR Code | QR Code.io

 Aha slides is like Mentimeter, but free. Remember to clear the slide from the old responces between classes. https://presenter.ahaslides.com/ https://presenter.ahaslides.com/

 Download printer-friendly periodic table with all 118 elements. Free Printable Periodic Tables (PDF and PNG) - Science Notes and Projects

 1.  Online Etymology Dictionary 2.  IPA Phonetic Transcription of English Text - toPhonetics 3.  east in Latin - English-Latin Dictionary | Glosbe 4.  east in Greek - English-Greek Dictionary | Glosbe 5.  Arabic Student's Dictionary 6.  How to pronounce شاطئ in Arabic | HowToPronounce.com 7.  239 Phrasal Verbs Starting with C: Definitions and Examples - UsingEnglish.com 8.  Chinese English Dictionary - Learn Chinese - 英汉字典 - 汉英字典 - 汉字- Arch Chinese 9.  Ludwig.guru - Write Better English 10.  Listen to live Vaduz radio on Radio Garden – Radio Garden 11.  Interactive Phonemic Chart | Learn English 12.  Download YouTube Videos as MP4 -YouTube MP4 Downloader 13.  My Presentations | AhaSlides  Polls

 Let's find out how to measure the distance from Earth to any star. >>>>>>>>>  Parsec Parallax  <<<<<<<<<<<<<<<<< But first you shall know how to measure angles. 1. Read this: 90°11`41`` This is 90 degrees, 11 arcminutes, and 41 arcseconds 2. Is this correct? Why? 51°20`90``  No. Arcseconds and arcminutes cannot be greater than 60! 90`` -> 1`30`` 51°20`90`` -> 51°21`30`` Arc minutes and arc seconds are just like minutes and seconds on the clock!

 Fundamental knowledge means that you've learned a subject in a classical way, in the right order, with no gaps. For example , if you learn fundamentally about organic chemistry, you 1. learn the topics in the classical sequence:  alkanes, alkenes, alkynes; and then add functional groups: alcohols, aldehydes, ketones, acids, ethers, esters, amines, amides, proteins, and sugars. 2. understand the main concepts: nucleophile, electrophile, dative bond, Lewis structure, VSEPR Valence shell electron pair repulsion, etc. With fundamental knowledge you have a good foundation to build on, and you can understand specialists, have a common language with the scientists. Here are a few of excellent channels to explore and build Your knowledge fundamentally on each topic: 1 - Organic chemistry - 30 videos sequence, free Organic Chemistry Exam 1 Review - YouTube 2 - General Chemistry - all the elements in the periodic table by groups: Periodic Table Part 2: Alkali Metals (Li, Na, ...

  Optical Lenses | Optical Lens | Optical Lenses for Sale | Edmund Optics

 https://drive.google.com/drive/folders/1E6Kma2rR_XiY6GB4uJR0TyZnaErwbsfX?usp=drive_link

  Tiger - Vidit AR Macaw - Vidit AR Penguin - Vidit AR Panda - Vidit AR (1) How to View Google 3D Animals in Your Mobile \ AR Feature - YouTube

 https://drive.google.com/file/d/1cv-ziqPhkaAusuoESM-eYd_nxuvBMhir/view?usp=drive_link

  Lessons | Nagwa

  https://drive.google.com/drive/folders/17cMfArpWRYVb70K_hpm_Mg2wg4hZESBw?usp=drive_link

  Citywalki: Virtual flyover in Abu Dhabi

 Here is a video overview of astronomy https://www.youtube.com/watch?v=XkuTINYgTF8 ________________________________________________ The 4 Discoveries of Galileo using a telescope: Galaxies Sun spots and its rotation Venus's phases Jupiter's moons The 4 Discoveries of Galileo 😱💫🪐🔭☀️ - YouTube _____________________________________________________________________ 1. Nicolaus Copernicus - Heliocentric model 2. Tyco Brahe - Parallax measurements to find the distances from the Earth to planets 3. Johannes Kepler- found that planets move in ellipses 4. Galileo Galilei - Jupiter's moons

 All living organisms are made of cells, like a house is made of bricks. Let's see https://drive.google.com/file/d/1Xp_7gnBQ8Tg1MWMYVnAclBBHsTG5AVXP/view?usp=drive_link

 Greek is often used in scientific terms. Greek letters are used in physics, to abbreviate physical quantities. E.g.  ρ rho is for density How many Greek letters are there?  24 Let's learn to write them with our own hands! Note that the capital and the lower-case letters in Greek look very different! Theta Symbol θ Θ

https://www.youtube.com/watch?v=4eRCygdW--c&list=PLyQSN7X0ro23NUN9RYBP5xdBYoiv2_5y2&index=11&t=48s

 Gold is very stable. It doesn't rust even after a million of years.  Acids cannot dissolve it either, except for the famous mixture aqua regia. Let's see the experiments https://www.youtube.com/watch?v=Ri8heWPz5zY

 Let's read this article, written by Muhammad Arif Malik 8.4: Amino acids - Chemistry LibreTexts What amino acids are missing in hummus?  What about chicken?

 HF or hydrofluoric acid is not strong, but it can corrode glass. In water HF dissociates into H+ and F- ions. H+ is very small and sneaky, and can react very quickly. That's what makes acids so violent. Video 1 - Sulfuric acid vs a stainless steel spoon https://drive.google.com/file/d/1HoX0IHIP3HssHC_en9avXJLZn0bePv9R/view?usp=drive_link ___________________________________________________________________ Acid are quickly reacting chemicals, however they are not that quick as shown on some fake videos. The spoon here is made of gallium, which is a more reactive metal Video 2 - Strong acid vs highly reactive gallium spoon/ fake spoon https://drive.google.com/file/d/18vBR-auexfU5KyoMXQ7s7xlUKi2BS4lN/view?usp=drive_link ____________________________________________________________________________ HF has the pKa of approximately 3. It is not that strong. But it is very toxic, so do not touch it anyways! However, the other part, the F- , is very agressive, and it can destroy glass! On t...

 Shellfish includes clams, mussels, scallops, etc. They all have no brain, but their nervous system is decentralized and is located in many organs. These neurons in each organ are called ganglia. Even though shellfish has no brain, thy have other organs, like stomach heart intestine nephron/ kidneys Let's see a video of a dissection of a dead clam. Dissection is when someone opens a dead organism and cuts it into separate organs. Let's look what's inside a shell! It is not just a uniform mess. There are separate organs with their functions. https://drive.google.com/drive/folders/1UwvKPVV27Ta5-oU_MG-F6oZDognanOVt?usp=drive_link

 Learn about rocks Basalt | Not Boring At All

 Alphabetical list with pictures https://drive.google.com/file/d/1MOU8G9EkiRWQqLUKAETl7BjKTFcF-gFW/view?usp=drive_link A comprehensive dictionary of phrasal verbs online 239 Phrasal Verbs Starting with C: Definitions and Examples - UsingEnglish.com

 There are 3 levels. Can you pass all of them? RBGnRGB

 Circumference  C = 2πR π in Other Universes | Azeem Bande-Ali | azeemba.com Area of a Circle A = πR^2 Approximation of the circle area - JSXGraph Wiki

He uses plywood gears to add and subtract numbers  How I built a Mechanical Calculator - YouTube

 There are just 3 different cloud types that you have to know: cumulus, stratus, and cirrus https://drive.google.com/drive/folders/13J3XVc7-AnmMKRhh83L6eS9Dqf7bHIuK?usp=drive_link Clouds Archive - Cloud Appreciation Society

 Here is a nice website with clear explanations The Earth Moves Two Ways - Tree House Weather Kids - University of Illinois Extension