Welcome to Science Lesson Resources for Teachers and Parents!

 Dear all, Here is a very handy website with IGCSE and IAL past papers and marking schemes - easy to find and download for free. https://igcse.hirusha.xyz/

 Emeralds are minerals of aluminum and beryllium  Be3Al2(SiO3)6 MIA, Museum of Islamic Art in Doha, Qatar has a beautiful display with emeralds. Emeralds have very distinct unusual bright blue-green color.

 Lesson Materials, including an explanation in German.  Turns out, when you do not understand the language, you can still learn from the visuals, and it this way of learning through guessing is more fun. Interesting facts The most beautiful and mesmerizing to watch are crimson-red Li flame, and blue-green Cu. Rubidium is called so because of the bright deep-red spectral lines.  Gemstone ruby has Al2O3 and https://drive.google.com/drive/folders/1PGPPMPu_9MahAiR86hB4NpgMDeo3_GNJ?usp=sharing

How big is the human heart? - Human heart is about the size of a fist. Where is it located? - It is located in the central-left part of the chest, between the lungs. The left lung is smaller than the right one, to make space for heart. What are the parts of the human heart? - Human heart has two halves - left and right. They are almost equal in size, but the left one is much stronger - it has 2-3 times thicker muscle walls. Why the left side of the heart is stronger? - To pump blood to the whole body - this requires more pressure. The right side only pumps blood to the lungs. Visual summary:

 Here is a nice density experiment. You just need to prepare different concentration solutions of sugar in water, and use different food coloring to dye them. https://www.youtube.com/shorts/6ndYjvNBZyY

 Here is a simple and fun lab work for grade 8 Science students. https://drive.google.com/drive/folders/1rid-RW4nJznMngsnxe7Bz-LfJcP0cUfT?usp=drive_link

 1. List the first 10 odd numbers 1 3 5 7 9 11 13 15 17 19 ... 2. Calculate the sum for each odd number from 1 to n 1 = 1 1+3 = 4 1+3+5 = 9 1+3+5+7 = 25 1    2    3   4      5 1    4    9   16     25 Why do the answers are equal to n^2? Here is the geometrical proof https://drive.google.com/file/d/1UalkCsZV6LZM4Vppw20KjTXx6D4Bw5Nu/view?usp=drive_link

     Fossils are antient living things, that turned into stone. What fossils do you know? Ammonite, trilobites, shellfish, amber insects, dinosaurs? What are the most recently formed fossils? These are, probably, mammoths - giant "hairy elephants" of the ice age. Let's learn about them more through beautiful art https://drive.google.com/drive/folders/17cFdDMYsW8vi--gF-wQBzXUTKz8AaDT9?usp=drive_link https://drive.google.com/drive/folders/17cFdDMYsW8vi--gF-wQBzXUTKz8AaDT9?usp=drive_link

 There are files that are very useful, and can be useful for almost any lesson. 1. World map 2. Periodic Table Download for Free - ready to use and print https://drive.google.com/drive/folders/1W5EDHYEQLlqs9p1JBl9vJE2bmP3g8c76?usp=sharing

 Can you explain this Halloween riddle? 🧊 Do you know what Boolean logic is? ❓ It is used in computers. 💻 _________________________________________________________ There are two inputs - A and B, and one output . The inputs and the output can be only 0 or 1. There are possible 4 different input combinations : AB 00, 01, 10, and 11 .  Each input can result in either 0 or 1.  Therefore, there can be 16 different Boolean functions: 2*2*2*2 = 16

  Balancing Chemical Equations (Balancing Chemical Equations, Conservation of Mass in Chemical Reactions) | Chemistry | CK-12 Exploration Series More virtual experiments:  https://interactives.ck12.org/simulations/chemistry.html

     You can use a microscope to observe microbes, cells, and tissues, prepared on slides.     Here are the five operations you shall learn how to do to use a microscope: Turn on and off the microscope Fix the slide on the holder Adjust the light brightness using the diaphragm Change the objectives by rotating them Focus the view on the slide

 Did you know there are lizards called sand fish? https://drive.google.com/file/d/1NMKgxXd4TdF3RnDC8NicVTvKHKElm8w8/view?usp=drive_link

 Which dog has the strongest bite? How do you measure the bite force? In which units? https://drive.google.com/file/d/17iF9yf298LD4oVg20jmWwZE12UDxnGm7/view?usp=drive_link

 Pdf Coffee https://pdfcoffee.com/

 The Moh's Scale ranks minerals by their hardness from 1 to 10, with 10 being the hardest. A harder mineral can scratch the softer one. This means that diamond, number 10, can scratch any other minerals, because all of them have hardness lower than 10.

 You know how to balance chemical equations? Do you think it is easy? But can you do these ones? https://docs.google.com/presentation/d/1VRcXPekMnpRW0J_Y5H_jGI-zipI_r9qv/edit?usp=drive_link&ouid=105880275394476122937&rtpof=true&sd=true

 Let's repeat this "magic" words: Chloride Chlorite Chlorate Now let's look at what do they mean. Download the files https://drive.google.com/drive/folders/1T822pTIwmtrDP0Iuh1tle96MbQLL9bNn?usp=sharing

     When something rotates fast, it doesn't want to change it's position.     This principle is used to build devices called gyroscopes. Gyro means "wheel", and scope "observation". In old times gyroscopes were used to observe the Earth rotation. The gyroscope will stay in the same plane, and as the Earth rotes, for us it will look like the gyroscope slowly changes it axis - one full rotation cycle per 24 hours, when in reality it's the gyroscope that stays in place, and we all, together with the house, and the whole Earth are moving.     Let's see what fun and surprising things you can do with a gyroscope.     Gyroscopes are not expensive. You can buy one, and try all of these experiments, and maybe come out with some new ideas for gyroscope tricks. See or download the video:  https://drive.google.com/file/d/1npJICPptzqSdJmuOgfNmPrm_fSikZnoX/view?usp=drive_link See or download the video: https://drive.google.com/file/d/1npJICPptzqSdJmu...

 Here are the 29 chapters that the students shall cover in their IGCSE Chemistry course under the Edexcel exam board. This shall be covered in two years, during year 10 and year 11. Year 10 covers chapters 1 till 15. Year 11 - chapters 16 till 29. Download a printable pdf from my Google Drive https://drive.google.com/file/d/1OqXgUIDtHMwOPKWiIJePM2mO703_tQcK/view?usp=drive_link

    This is a useful set for learning chemistry. You may print the periodic table on one side, and the solubility table on another, and then laminate the sheet to protect it.     These tables are colorful and printer-friendly and will not waste ink. These versions are the best I could find. I hope you will find them useful. Download the table from my Google Drive https://drive.google.com/file/d/1bPbBcHkGQrAJlPJqVBd1sk1SFdQlNUCn/view?usp=sharing Download the table in pdf from my Google Drive https://drive.google.com/file/d/1bPbBcHkGQrAJlPJqVBd1sk1SFdQlNUCn/view?usp=sharing

 Do you know the three types of rock - igneous, metamorphic, and sedimentary ? Let's now go deeper Sedimentary Rocks: Formation, Types, Examples – Geology In Igneous Rocks: Formation, Classification, Examples, Uses – Geology In

 Here is a fun, student-centered activity that may be used to start the chemistry lessons at the beginning of the year.  1. The students form groups of 2 to 4 students 2. Each group gets a mineral and its name from the teacher 💎 3. The teacher asks "What is the periodic table? How many elements are there?" "And where do we get the elements from? Where do we get the chemicals? - From the ground, for free - you just take it." "Each country has different minerals. What minerals do we have in our country?" 3. The students research about their mineral in groups for 5-10 minutes, using their personal devices, take notes.  They may mention: The mineral's name Chemical formula, what elements are in it The uses The price - is it expensive? Interesting facts 4. The groups volunteer to present.  While some students speak, another walk between the desks and show their mineral to the classmates. In this way everyone will see each mineral. 5. The students clap each...

 Here is an interesting science teaching blog, that shows real-life examples for each topic https://studiousguy.com/gay-lussacs-law-examples/

 See the list of all the compounds with each element in a form of the periodic table. For example, let's go for the compounds of chlorine. Do you know how many different compounds between iron and chlorine exist?  What about sulfur?  How many different compounds do chlorine and sulfur form? Follow the link, and answer the questions https://en.wikipedia.org/wiki/Actinium(III)_chloride

 This useful website shows the electron configurations for all the elements in the periodic table . It can be used in group work activities when learning about the orbitals . https://www.webelements.com/carbon/atoms.html Here is a nice template to be filled by hand

 Here is a clear and comprehensive overview of all the main divisions of chemistry with clear diagrams and intuitive explanations. General Chemistry Inorganic Chemistry Physical Chemistry Instrumental Analysis The web site:  https://www.chemguide.co.uk/index.html#top The web site:  https://www.chemguide.co.uk/index.html#top

 1. Introduction The teacher introduces the new topic with  intrigue , tells that chromatography is used in pharmacy and industry, and that the previous exams had many questions on this topic.  The students write down in their notebooks the topic and sketch the lesson summary diagram. The teacher introduces the two objectives of the lesson. 2. Sticky notes - brainstorming - Aha Slides The students show their previous knowledge and creativity . Each student contributes 3 words to the word cloud. 3. Virtual experiment - can be done in the lab also The students do the experiment first and then interpret the results, before learning the theory. This constructivist approach allows the student to think for themselves.  - Recap about why plants are green - See the experiment video for 30 second - Try it yourself This experiment uses the  I do - We do - You do approach. 4. Sample exam question The students together solve two questions about chromatography from the pr...