In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean words for "I don't know" and "I don't understand." For details, and to get started using this handy Korean phrase yourself, watch this guide for Korean language learners.
In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean words for "goodbye" and "see you later." For details, and to get started using this handy Korean phrase yourself, watch this guide for Korean language learners.
In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean words for "Where are you going?" For details, and to get started using this handy Korean phrase yourself, watch this guide for Korean language learners.
In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean words for "What time is it?" For details, and to get started using this handy Korean phrase yourself, watch this guide for Korean language learners.
In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean words for "What is your name?" For details, and to get started using this handy Korean phrase yourself, watch this guide for Korean language learners.
In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean words for "What day is it?" For details, and to get started using this handy Korean phrase yourself, watch this guide for Korean language learners.
In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean words for "How old are you?" For details, and to get started using this Korean phrase yourself, watch this guide for Korean language learners.
In this free video language lesson from Sunny Park of Mahalo, we learn how to say, pronounce and write the Korean word for "hello." For details, and to get started using this handy Korean phrase yourself, watch this guide for Korean language learners.
This free video science lesson from the Mr G. demonstrates a simple technique for generating plasma with a microwave and a few grapes. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from Mr G. demonstrates a simple technique for creating a lemon battery. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from the Home Scientist demonstrates a simple technique for creating ammonium chloride from hydrochloric acid and ammonia. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from the Home Scientist demonstrates a simple technique for comparing the radioactivity of lithium and sodium. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from the Home Scientist demonstrates a simple technique for creating a color-changing solution with sodium permanganate, sodium hydroxide and sugar. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from the Home Scientist demonstrates a simple technique for creating ammonium chloride from hydrochloric acid and ammonia. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's mrhomescientist demonstrates a simple technique for doing acid-base titration. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's Mindpaint demonstrates a simple technique for making your arms feel as though they're lighter than air. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's Mindpaint demonstrates a simple technique for creating a "fire motor" with a pair of wine glasses and a candle stick. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's Mindpaint demonstrates a simple technique for creating a tornado within a soda bottle. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from Jefferson Lab demonstrates a simple technique for demonstrating the polarity of the water molecules. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's bionerd23 demonstrates a simple technique for modding a Bresser Biolux NG or Bresser Biolux AL microscope to view larger objects like minerals. You'll also learn how to mod your microscope to allow you to take pictures and shoot video through it. For all of the relevant details and detailed, step-by-step instructions, watch this home-science how-to.
This free video science lesson from YouTube's bionerd23 presents an overview of the similarities between the human heart and that of a regular sheep. For all of the relevant details and detailed overview of the similarities and differences, watch this home-science how-to.
This free video science lesson from YouTube's bionerd23 demonstrates a simple technique for moving gas from a balloon into a secondary airtight container. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's bionerd23 demonstrates a simple technique for deflecting ionizing radiation through use of super magnets. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's bionerd23 demonstrates a simple technique for extracting one's own DNA. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from YouTube's bionerd23 demonstrates a simple technique for making fingerprints visible with iodine. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This free video science lesson from Northern Kentucky University demonstrates a simple technique for demonstrating the effects of heat on air pressure by placing a candle within a graduated cylinder. For all of the relevant details, and a complete demonstration of the experiment itself, watch this video guide.
This free video science lesson from Northern Kentucky University demonstrates a simple experiment for comparing the density of ice—frozen water—to vegetable oil. For all of the relevant details, including a list of necessary materials, full step-by-step instructions, and a complete demonstration of the experiment itself, take a look.
In this free video chemistry lesson from Salman Khan, we learn about specific heat capacity and vaporization. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn about amines and SN2 reactions. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn about vapor pressure and the ideal gas law. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn about tKeto-Enol tautomerization in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn ahow to work with Friedel-Crafts acylation in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video organic chemistry lesson from Salman Khan, we learn how to name ketones. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn about chloride acid formation. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn how to work with aldol reactions. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn about amid formation from acyl chlorides. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn about the relative stability of amides, esters, anhydrides & acyl chlorides. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For all of the details, take a look.
In this free video chemistry lesson from Salman Khan, we learn how to work with carboxylic acid derivatives. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
This holiday season, why not forgo canned pumpkin? Roasting a whole pumpkin is an easy process and this free video cooking lesson presents a complete overview. For all of the details, and to learn how to roast a pumpkin yourself, watch this guide.
If you're scared of curling your hair because you don't want to damage your hair through heated products like flat irons and curling irons, then here is a more eco-friendly, heat-free alternative that costs almost nothing but produces gorgeous results.
