KidsHealth is the #1 most-trusted source for physician-reviewed information and advice on children's health and parenting issues. For parents, kids, teens, and educators, in English and in Spanish. I used this site a lot last year when we were doing our research projects in PE/Health. The site says it's for kids, but if you go to the homepage, you can choose the section for Teens. I liked it for research, but it's also just fun to find more things to keep your life balanced, like how to relieve stress, how to study, how to be a good friend, and how to talk to your parents. You will find a lot of great articles and good information about all areas of health: physical, emotional, and social. If you want to hear the articles, you can click the speaker icon. The articles are available in English and Spanish.
Official website of the Smithsonian, the world's largest museum and research complex, with 19 museums, 9 research centers, and affiliates around the world. The Smithsonian Institution was created by an Englishman named James Smithson in the 1840s. His goal was to spread knowledge on a wide variety of topics to as many people as possible around the world. This website supports his goals by including articles, photos, videos, games, you name it, on almost any topic you would like. I use the site to do research for some projects at school, but mostly just to read about things I'm interested in. The photos and diagrams are easy to understand, too. It's a big site to explore, but my favorite tab at the top is Learn & Explore. You can choose your own area to explore from a pull-down menu. For Kids and Collections are the ones I choose most, but you can see for yourself by clicking on any of the choices. Someone in HS or MS might think the For Kids section is for children, but there are a lot of activities in there for teenagers, too.
For every correct answer you choose, 10 grains of rice are raised to help end world hunger through the World Food Programme. I have fun using this site for vocabulary review. I like being able to choose the categories for practice (like math, science, etc.) and it's fun and easy to play if I just have a few minutes. I play it on the bus. There is an icon to click if you need to hear how the word is pronounced and the correct answer is shown to help you if you make a mistake. You can play any time just for fun, or your points can be used to donate rice to communities in need if you set up a free account with your email.
This site helps me focus on one grammar skill at a time and the practice sentences are different for each person. My teacher used it in class last year. We would take quizzes she assigned and then do practice sessions on the skills we needed to practice. After school was out, I kept doing the practice and quizzes. I'm learning more ideas about spelling, punctuation, and the ways to fit words together in sentences. You can set up a free account with your email address.