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Hour of Code

This year, we're taking Hour of Code to new heights by offering coding opportunities that encompass both artificial intelligence (AI) and non-AI components.

Want to keep learning? Go beyond an hour

Teachers: Host an hour or read the How-To Guide

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Use computer science to explore and learn about AI!

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Scratch is a free programming language and online community where you can create your own interactive stories, games, and animations.

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Find 'Game Design' lessons to do with your students. These 'Game Design' activities emphasize creativity while students practice computer science.

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Learn the technical skills to get the job you want. Join over 50 million people choosing Codecademy to start a new career (or advance in their current one).

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Adafruit Circuit Playground Express - Blocks / Javascript editor

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Adafruit Circuit Playground Express - Blocks / Javascript editor

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Adafruit Circuit Playground Express - Blocks / Javascript editor

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A Blocks / JavaScript code editor for the Adafruit Circuit Playground Express.

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A Blocks / JavaScript code editor for the micro:bit powered by Microsoft MakeCode.

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Coding Courses & Computer Science Curriculum - CS First

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Find coding courses and computer science lessons to use with your students. All of the materials in the computer science curriculum are free and easy to use.

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When you visit websites, they may store or retrieve data in your browser. This storage is often necessary for the basic functionality of the website. The storage may be used for marketing, analytics, and personalization of the site, such as storing your preferences. Privacy is important to us, so you have the option of disabling certain types of storage that may not be necessary for the basic functioning of the website. Blocking categories may impact your experience on the website.

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Thunkable: Best no code app builder | No code app creation

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Thunkable is the most powerful mobile app development platform that allows anyone to create an app without needing to know how to code.

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Technology Unit: Computer Science - BrainPOP

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The hardware and software that connects our world!

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Pixilart, free online pixel drawing tool - This drawing tool allows you to make pixel art, game sprites and animated GIFs online for free.

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Powerful, free online apps and community for creating beautiful custom content.

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Make on-brand videos with the leading online video maker. Biteable is the leading solution for creating concise, engaging, on-brand video content.

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Powtoon | Create Awesome Videos Yourself

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Powtoon gives you everything you need to easily make professional videos and presentations that your clients, colleagues, and friends will love! No design or tech skills are necessary - it's free, easy, and awesome!

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Storyboard That: Free Online Storyboard Creator

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Storyboard That: Create free storyboards online with ease. Design visuals, comics, and graphic organizers. Try it now and start creating!

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WordArt.com is an AI-powered word cloud generator that enables you to create amazing and unique word clouds with ease.

Professional quality results can be achieved in no time at all, even for users with no prior knowledge of graphic design.

Word clouds (also known as tag cloud, word collage or wordle) are visual representation of text that give greater rank to words that appear more frequently.

Word clouds are perfect for creating stunning personalized gifts. No sign up required!

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Create Stunning Word Clouds in Seconds | WordArt.com

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WordArt.com is an online word cloud generator that enables you to create amazing and unique word clouds with ease

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Piskel, free online sprite editor. A simple web-based tool for Spriting and Pixel art. Create pixel art, game sprites and animated GIFs. Free and open-source.

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Tinkercad | From mind to design in minutes

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Tinkercad is a free, easy-to-use app for 3D design, electronics, and coding.

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Mecabricks is the first web service to publish and display 3D models made with LEGO® bricks. No need to install any plugin, it simply works.

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The highest quality free courses through the most awesome learning platform.

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Groove Pizza is a playful tool for creating grooves using math concepts like shapes, angles, and patterns. Start working with one of the special pizza presets and add/remove toppings to adjust the groove, or click on the Shape Pizza tab and drag various shapes onto the big circle to play and explore math-inspired grooves.

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BeepBox is an online tool for sketching and sharing instrumental melodies.

All song data is contained in the URL at the top of your browser. When you make changes to the song, the URL is updated to reflect your changes. When you are satisfied with your song, just copy and paste the URL to save and share your song!

BeepBox is a passion project, and will always be free to use. If you find it valuable and have the means, any gratuity via would be appreciated!

Instructions

You can add or remove notes by clicking on the gray rows at the top. BeepBox automatically plays the notes out loud for you. Try it!

Notes go into patterns, and you can edit one pattern at a time. Those numbered boxes at the bottom of the editor are the different patterns you can edit. Click the other boxes to move to a different part of the song, or click the arrows on the currently selected box to swap which pattern is played during that part of the song.

BeepBox can play several rows of patterns simultaneously, and each row has its own set of patterns. Most rows can play melodies or harmonies, but the bottom row is for drums.

The purple loop underneath the numbered boxes controls which part of the song is currently repeating. Move the loop to listen to a different part of the song, or drag the ends to expand the loop to include the whole song.

When BeepBox has focus (click on its interface above), you can use these keyboard shortcuts:

Spacebar: play or pause the song

Z: undo

Y or Shift Z: redo

C: copy pattern from selection

V: paste pattern into selection

1-8: assign a pattern number to selection

Arrows: move selection

[ ]: move playhead backward or forward

Check BeepBox's edit menu for more!

In the note pattern editor, you can click and drag horizontally on a note to adjust its duration. You can also click above or below an existing note to add more notes to be played simultaneously, which is called a chord.

ADVANCED: Drag vertically from an existing note to bend its pitch, or drag vertically from above or below the note to adjust its volume. Drag on the numbered pattern boxes to select multiple patterns to copy and paste parts of your song.

BeepBox has many more features. Try playing with the buttons and menus on the right side to find out what it can do! You can also click on the label next to each option for a description of what it does.

Check out some of these songs that other people have posted on Twitter! If you find something you like, you should let the creator know! And if you see any beginners asking for advice, maybe you can help them!

About

BeepBox is developed by John Nesky, also known as @shaktool.

BeepBox does not claim ownership over songs created with it, so original songs belong to their authors.

Neither John Nesky nor BeepBox assume responsibility for any copyrighted material played on BeepBox. No songs are ever received, recorded, or distributed by BeepBox's servers. All song data is contained in the URL after the hash (#) mark, and BeepBox running inside your browser converts that data into sound waves.

You can download an offline version of BeepBox to use when you don't have access to the internet. The features are otherwise the same.

You can download and use the source code under the MIT license. In particular, you can use the synth code as demonstrated here to play BeepBox songs in your own JavaScript projects!

Those who yearn for simpler times can find the old version of BeepBox here.

Shared on Twitter:

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BeepBox is an online tool for sketching and sharing instrumental melodies. All song data is contained in the URL at the top of your browser. When you make changes to the song, the URL is updated to reflect your changes. When you are satisfied with your song, just copy and paste the URL to save and share your song!

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CS First is a cost-free computer science curriculum that anyone can teach. Designed for students ages 9-14 of all interests and experience levels, students learn collaboration and core computer science concepts as they create their own projects. Educators lead the way with easy-to-use lesson plans, tutorials, activities, and resources.

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CS First is a cost-free computer science curriculum that anyone can teach. Designed for students ages 9-14 of all interests and experience levels, students learn collaboration and core computer science concepts as they create their own projects. Educators lead the way with easy-to-use lesson plans, tutorials, activities, and resources.

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Your everywhere studio. Create and record easily with powerful tools and sounds, all in one place.

Get started

Vocal & mixing tools

Reverb, Distortion, EQ, Delay, Compressor, and more.

Virtual instruments

Beatmaker, software synths, drum kits, and 808 with Glide sounds.

Royalty-free sounds

Thousands of loops, samples, one-shots, and sound effects.

Collaborative studio

Make music online anytime, with anyone, on any device.

Industry quality sounds, every 2 weeks

New and exclusive sound packs are dropped every two weeks from trending genres like Phonk, Drill, Lo-Fi, K-Pop, and more. Our sound library has up to 24,000+ loops and hundreds of presets, designed and mixed by professional producers.

Latest Soundtrap Originals

Explore more sound packs from your favorite genres

Collaborate with anyone, from anywhere

Create and collaborate with your bandmates, friends, or other musicians in real-time through video and chat, directly in the studio. Leave comments on your shared projects and let auto-save keep you in the creative flow.

Mix and master for a chart-ready sound

Finalize your song with our mixing and mastering tools, suitable for beginners and pros alike. From auto-mixing to EQs, compressors, and more - access all the tools you need to take your song to the top 50!

More features

Vocal tuning

Achieve pro-sounding vocals from every take with our pitch correction software.

Automation

Tweak the volume, pan, and use the filter sweep effect with this powerful audio editing tool.

Patterns beatmaker

Make your own beats with ease. Sequencing a unique beat for your next track has never been easier.

Plug and play

Connect your own microphone, guitar, or any other instrument.

*Access to Vocal tuning and Automation available on the Music Makers and Complete plans.

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Make music together online. Free instruments, loops, drum kits, and vocal tuner in one studio. Record, edit, mix, and master your audio, no downloads - sign up for free.

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Beatmaker: Make a Beat for Free on Splice | Splice

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Make a beat from millions of royalty-free samples and loops, then save your beat or download as MIDI.

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A fun, interactive music experience
Incredibox is a music app that lets you create your own music with the help of a merry crew of beatboxers.Choose your musical style among 9 impressive atmospheres and start to lay down, record and share your mix.

Where making music is child's play!

Part game, part tool, Incredibox is above all an audio and visual experience that has quickly become a hit with people of all ages. More than 80 million players worldwide have already enjoyed it. The right mix of music, graphics, animation and interactivity makes Incredibox ideal for everyone. And because it makes learning fun and entertaining, Incredibox is now being used by schools all over the world.

Create a mix

Drag and drop icons onto the avatars to make them sing and start to compose your own music. Find the right sound combos to unlock animated choruses that will enhance your tune.

Share it

Once your composition sounds great, just save it and you will get a link to your mix. You can easily share it with anybody so they can listen and even vote for it.

Be a legend

If you share your mix a lot and get enough votes from other users, you may go down in Incredibox history by joining the Top 50 chart. Ready to show your stuff?

Ready to lay down
your mix?

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Incredibox is a music app that lets you create your own music with the help of a merry crew of beatboxers. Choose your musical style among 9 impressive atmospheres and start to lay down, record and share your mix.

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Music is for everyone. Play with simple experiments that let anyone, of any age, explore how music works.

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Make hip hop music using the Library's public audio collections.

Citizen DJ the application

Citizen DJ is a project by Brian Foo developed during his time as an Innovator in Residence at the Library of Congress. The application invites the public to make hip hop music using the Library's public audio and moving image collections. By embedding these materials in hip hop music, listeners can discover items in the Library's vast collections that they likely would never have known existed. For technical documentation and code, please see the repo External .

The album

To hear Tracks from the Stacks, the album Brian produced with Citizen DJ, visit this page.

The guide

Brian worked with Library staff to produce a guide to copyright and ethics of digital sampling with cultural heritage sound recordings. This guide is made for anyone who is interested in making music by sampling existing audio and video material from the Library of Congress and beyond. It is designed to be accessible and clear while not over-simplifying what is a complex set of copyright and ethical issues. This is not meant to be legal advice, but a guide that aggregates, references, organizes, and summarizes existing information from reputable sources such as the Library of Congress and the U.S. Copyright Office.

How will these sounds be made available, searchable, and discoverable?

The website will include three ways of accessing the sounds identified in this project:

1. An interface for quickly exploring a particular collection by sound and metadata

2. A simple music-creation app that let's you remix collections with beats

3. "Sample packs" that you can download which contain thousands of audio clips from a particular collection that can be used in most music production software

Why Hip Hop?

"Since its beginnings in the 1970s, hip hop has become today's dominant worldwide music genre and cultural movement. At the center of this movement is the DJ, whose role is to excavate, transform, and collage disparate and obscure sounds from current and past cultures to create wholly new, relevant, and infectious music.

The golden age of hip hop was said to be in the late 80s to early 90s when DJs had unconstrained creative freedom to collage from found sounds. This small window of time produced landmark albums such as Public Enemy's Fear of a Black Planet and De La Soul's 3 Feet High & Rising, both considered to be culturally significant and selected for preservation in the National Recording Registry at the Library of Congress. These albums were dense and intricate sonic collages composed of hundreds of found sounds. However, the increasing popularity of hip hop in the following decade gave rise to high profile lawsuits resulting in excessive restrictions on how audio could be sampled. Today, collage-based hip hop as it existed in the golden age is largely a lost (or at best, a prohibitively expensive) artform.

I believe if there was a simple way to discover, access, and use public domain audio and video material for music making, a new generation of hip hop artists and producers can maximize their creativity, invent new sounds, and connect listeners to materials, cultures, and sonic history that might otherwise be hidden from public ears."

About Brian

Brian Foo is a 2020 Innovator-in-Residence at the Library of Congress, and has worked in libraries and museums for nearly a decade, specializing in the visualization of large collections of media for the public. He currently is a data visualization artist at the American Museum of Natural History and previously at the New York Public Library. His multimedia work has been featured on NPR, New York Times, and The Atlantic. You can contact Brian with feedback or questions about the project at LC-Labs@loc.gov .

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Citizen DJ | Experiments | Work | Library of Congress

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Have you ever tasted an Arab taco?

When was the Arab taco invented?

What is shawarma?

Find it out

How are currency exchange rates determined?

What was the gold standard?

Which type of currency exchange rate system does the U.S. use?

Find it out
Which of the following is usually NOT a factor in determining currency exchange rates?

Test your knowledge

Based on information from the Wonder, what was Lou Castro known for when he was alive?

Test your knowledge

What is an okapi?

Where do okapis live?

What do okapis eat?

Find it out

How can I use Wonderopolis?

What are the parts of a Wonder?

How do writers make a Wonder?

Find it out

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Where the Wonders of Learning Never Cease | Wonderopolis

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Where the Wonders of Learning Never Cease

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TED-Ed lessons on the subject Design. TED-Ed celebrates the ideas of teachers and students around the world. Discover hundreds of animated lessons, create customized lessons, and share your big ideas.

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Radiolab: Podcasts | WNYC Studios | Podcasts

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Welcome to Brains On! We're an award-winning science podcast for kids and curious adults from American Public Media.

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Good Night Stories for Rebel Girls Podcast

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Our audio adventures about extraordinary women have moved to a new home: the Rebel Girls App. Learn more.

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HowStuffWorks - Learn How Everything Works!

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HowStuffWorks has been explaining how things work to curious minds since 1998. Providing factual, unbiased content that's fun to read and makes difficult topics easy to understand.

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Technology is an integral part of our lives, and you may be looking for more ways to incorporate technology into your classroom.

If you have access to tablets, there are many educational apps that you can integrate into lesson plans.

We've pulled together 12 free science apps for middle and high school students. We focused on topics such as climate change, trees, conservation, and weather, which complement Project Learning Tree's lesson plans. The apps in this list include stand-alone games, interactive teaching tools, and reference guides.

Here's the list:

Carbon Capture

Peatlands - land that consists largely of peat or peat bogs - cover about 3% of the Earth's land surface. They play a role in fighting climate change by storing carbon and keeping it out of the atmosphere.

The Peatlands Partnership initiative created a game called "Carbon Capture" as part of the Flows to the Future project. In this game, students become a peatlands manager and their job is to protect the peatlands and store as much carbon as possible. They juggle many activities such as farming, tourism, and maintaining the natural habitat.

This 8-minute game has three levels of difficulty, so they can choose whether to manage the peatlands over a span of 15, 20, or 25 years.

Available on iOS (iPhone and iPad) and Android.

Code Carbon

Developed by a team of high school students, this game simulates many of the complex issues related to climate change. Players balance energy usage, population, money, and pollution.

This app has educational components built into the game including environmental science terminology, visual climate change comprehension, cause and effect relationships, and the relationship between climate change and the economy.

Code Carbon helps students understand the economic, political, and environmental impact of their decisions.

Available on iOS (iPhone and iPad) and Android.

Earth Now

NASA's Earth Now app shows visual representations of climate data from Earth science satellites.

Students can see a visual representation of the Earth's air temperature, carbon dioxide levels, carbon monoxide levels, gravity field, ozone, sea level, soil moisture and salinity, and water vapor.

The app also includes explanations, a daily average, a 3-day average, and an animated visualization of data from the past week.

This app would be a useful tool to reference throughout the year in lessons related to the atmosphere and changes in our climate.

Available on iOS (iPhone and iPad) and Android.

Global Change

The Global Change app is a teaching tool to show the relationships between global carbon and water cycles.

The app includes a short introduction video, a detailed explanation of stomata (a part of the plant that let's in CO2, which is needed for photosynthesis), and interactive representations of the carbon and water cycles.

In the carbon and water cycle charts, students can click on each element for more information, including useful links to external websites. There is also connections to climate change, so students can explore how rising temperatures have impacted the carbon and water cycles since the industrial revolution.

Available on iOS (iPhone and iPad) and Android.

Want more resources for a lesson on the carbon cycle? Download a free Carbon in Action worksheet.

Download now

Globe Observer

Students using this app can help scientists understand the satellite data collected by NASA from space. By using this app, students can participate in hands-on observations that contribute to the scientific community and global health.

This app has two opportunities for students to contribute through collecting data about clouds and mosquito habitats.

If students record cloud observations while a satellite is over your location, your data can be used to verify satellite measurements. You can even set up alerts within the app so you know when to collect the data.

The data for the mosquito habitat mapper are shared with public health, government, and scientific institutions. Students can identify potential habitats, sample and count the larvae, identify the type of larvae, and help eliminate breeding habitats.

Available on iOS (iPhone and iPad) and Android.

Leaf Snap

This app is an electronic field guide developed by researchers from Columbia University the University of Maryland, and the Smithsonian.

Use this app to browse information about trees from the New York City and Washington D.C. area (trees of the entire continental U.S. coming soon). It includes the scientific name, a short description of the species, its habitat, bloom time, longevity, a photo of the leaf and flower or fruit, and a map of where it can be found in the U.S.

You can also see nearby trees that were labeled by other Leafsnap users and create your own leaf collection.

Available on iOS (iPhone and iPad).

Offset

This educational game developed by NASA can help students apply their knowledge about the carbon cycle and climate change.

The goal is to not let carbon dioxide escape into the atmosphere. Students balance reforestation efforts and converting power plants and cars to run on renewable energy sources. Every time carbon dioxide escapes, the temperature goes up. If the temperature rises too much, the game is over.

The app also includes background information about the greenhouse effect and the carbon cycle, and how NASA is monitoring greenhouse gases.

Available on iOS (iPhone and iPad).

Oroeco

Oroeco is an app that helps you track your carbon footprint. Get ideas for reducing your climate footprint, and track actions such as eating vegetarian, recycling, turning off the lights, carpooling, using reusable bags, and eating local foods.

You can also analyze your impact with interactive graphs, see how your actions compare with other users, earn badges, and challenge your friends to reduce their impact.

When you connect to the community, you can also see the footprints of your friends and the actions they're taking.

Available on iOS (iPhone only) and Android.

Space Science Investigations: Plant Growth

NASA's Plant Growth app helps students learn about the elements that plants need to thrive by growing them in space.

Through the interactive game, students learn how micro-gravity, light, and water affects plant growth in space. By studying how plants grow in this unique environment, we can better understand the crucial elements plants need on Earth.

The app also includes plant growth experiments for at home or in the classroom.

Available on iOS (iPhone and iPad) and Andriod.

Survive Global Climate Change

This educational app includes stories about what the world might look like in 2063 if we do nothing to fight climate change today. Students can explore the effects of climate change in Canada, the U.S., Brazil, the U.K., and the Maldives.

Links to more information, quizzes, and discussion questions are also included.

Available on iOS (iPhone and iPad) and Android.

Trees Pro

Trees Pro includes easy-to-understand information about common types of trees such as the foliage, fruit, leaves, and other characteristics. The app also includes quizzes so students can test their new knowledge.

Students can identify tree species on school grounds, at a park, or at a nature reserve by searching by appearance, fruit type, and habitat.

The free version includes 40 species, and you can upgrade to the full version that contains more than 160 species.

Available on iOS (iPhone and iPad).

Water Wiz

Students working on water use projects will find this Water Wiz app helpful in tracking water usage.

The app is designed for households, but you could also apply this app's tracking system to classrooms.

If you live in an area that has mandatory water use cuts, this app can help you estimate how close you are to your limit. You can also connect other family members so you can see how water is being used by everyone in your household.

The app also includes reports on water usage by month, as well as daily summaries and monthly water usage projections.

Available on iOS (iPhone and iPad) and Android.

Let us know - are there any apps in this list you're going to try out with your students? Or are there any other educational apps you recommend?

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12 Engaging Science Apps for Middle and High School Students - Project Learning Tree

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Educational science apps and games for the classroom. Use these free apps in lessons on climate change, weather, conservation, trees, and more.

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Send Your Name to Jupiter's Moon Europa

Go farther with NASA - all the way to Jupiter's icy moon Europa. Sign up to send your name on NASA's Europa Clipper spacecraft by Sunday, Dec. 31.

Sign Up

The Space Station Turns 25

The International Space Station advances scientific knowledge in Earth, space, physical, and biological sciences, for the benefit of all.

Watch

Technology Drives Exploration

NASA's Space Technology Mission Directorate aims to transform future missions while ensuring American leadership in aerospace.

Latest Space Technologies

Today

Image Of The Day

Globular Cluster Omega Centauri Looks Radiant in Infrared

A cluster brimming with millions of stars glistens like an iridescent opal in this image from NASA's Spitzer Space Telescope. Called Omega Centauri, the sparkling orb of stars is like a miniature galaxy. It is the biggest and brightest of the 150 or so similar objects, called globular clusters, that orbit around the outside of our Milky Way galaxy. Stargazers at southern latitudes can spot the stellar gem with the naked eye in the constellation Centaurus. Globular clusters are some of the oldest objects in our universe. Their stars are over 12 billion years old, and, in most cases, formed all at once when the universe was just a toddler. Omega Centauri is unusual in that its stars are of different ages and possess varying levels of metals, or elements heavier than boron. Astronomers say this points to a different origin for Omega Centauri than other globular clusters: they think it might be the core of a dwarf galaxy that was ripped apart and absorbed by our Milky Way long ago. In this new view of Omega Centauri, Spitzer's infrared observations have been combined with visible-light data from the National Science Foundation's Blanco 4-meter telescope at Cerro Tololo Inter-American Observatory in Chile. Visible-light data with a wavelength of .55 microns is colored blue, 3.6-micron infrared light captured by Spitzer's infrared array camera is colored green and 24-micron infrared light taken by Spitzer's multiband imaging photometer is colored red. Where green and red overlap, the color yellow appears. Thus, the yellow and red dots are stars revealed by Spitzer. These stars, called red giants, are more evolved, larger and dustier. The stars that appear blue were spotted in both visible and 3.6-micron-, or near-, infrared light. They are less evolved, like our own sun. Some of the red spots in the picture are distant galaxies beyond our own.

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NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.

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Behind the News is a fun, accessible way for upper primary and secondary students to learn about what's happening in the world around them.

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Millions of practice design prompts to challenge you to think outside the box.