Welcome to Science Lesson Resources for Teachers and Parents!

     There are some songs for children that are very-very popular. Which one do you prefer? 1. 🦈 https://www.youtube.com/watch?v=XqZsoesa55w&t=9s 2. 🐤 https://www.youtube.com/watch?v=dhsy6epaJGs

 Soap bubbles, water droplets in a rainbow, oyster shells, opal mineral, peacock feathers, CD disks - why do the look colorful? Let's learn about iridescence and about a material called nacre or mother-of-pearl! Download the lesson materials https://drive.google.com/drive/folders/1Ju32qIJR2-A6U-jHzyycKHQgUG4e5z_K?usp=share_link

     Tsunami is when an Earthquake makes huge waves. In 2004 around Christmas, there was a big earthquake in Indonesia. The waves from there reached Sri Lanka and Thailand, causing a lot of destruction. After the first wave, some people went to explore the shore, and were hit by the second wave. Usually earthquakes and tsunamis come in series. This means that they often repeat in the next few days. Download the lesson materials   https://drive.google.com/drive/folders/1XtQdcZiUMyK5CNiQKqcpCOdntYDBu_cx?usp=share_link See a video about it on youtube  (2) Boxing Day Tsunami 2004 Thailand - YouTube Download the lesson materials  https://drive.google.com/drive/folders/1XtQdcZiUMyK5CNiQKqcpCOdntYDBu_cx?usp=share_link See a video about it on youtube  (2) Boxing Day Tsunami 2004 Thailand - YouTube

     Horses and donkeys are related. Same as camels and giraffes, dogs and wolves, cats and tigers. But it turns out that the animal, that is most closely related to elephants, is surprisingly small.   Let's dive in into interesting biology of African animals. Download the lesson materials  https://drive.google.com/drive/folders/1RAMCXvYT1FyClVHMwCh_ga7fUNrRyzSA?usp=share_link See a funny video about the elephant's cousin 😅  Hyrax: Cousin of the Elephant - YouTube How to read phylogenetic trees  How to Read Phylogenetic Trees/ Cladograms - Very Clear Explanation - YouTube Download the lesson materials  https://drive.google.com/drive/folders/1RAMCXvYT1FyClVHMwCh_ga7fUNrRyzSA?usp=share_link See a funny video about the elephant's cousin 😅  Hyrax: Cousin of the Elephant - YouTube How to read phylogenetic trees  How to Read Phylogenetic Trees/ Cladograms - Very Clear Explanation - YouTube Making friends with wild hyrax (closest relative to elephant) - YouTube

     Silk is a strong and light fabric. Clothes made from silk are expensive and luxurious. Do you know how silk is made? It comes from caterpillar's cocoons! People were making silk clothes in China and South-East Asia for millennia.  The trade route from China to Europe via Central Asia used to be very important. This famous route is called "The Silk Road" See the video about silk production Silk Production In Cambodia The Silk Island Phnom Penh - YouTube Download the lesson materials https://drive.google.com/drive/folders/1hYPjp3dS3vAKEFJlg_6dX-2I_99eLiBI?usp=share_link See the video about silk production Silk Production In Cambodia The Silk Island Phnom Penh - YouTube Download the lesson materials https://drive.google.com/drive/folders/1hYPjp3dS3vAKEFJlg_6dX-2I_99eLiBI?usp=share_link

    Each angle can be measured in degrees. Do you know what are  90, 189, and 360 degrees ? And can you recognize 30, 45, and 60 degrees?     In mathematical calculations, usually we do not use degrees. The degrees have to be converted into a number. There are 3 trigonometrical numbers for each angle/ number of degrees - sin, cos , and tan .     Let's listen to a song of this Portuguese cat.  Listen on Youtube  (1) Gato matematico🤑 - YouTube Download  https://drive.google.com/drive/folders/1irfdcFxk-SzELg0ySBcsXs4BgiD0KtBp?usp=share_link