Every elementary classroom has a window, and every window has a weather report waiting to happen. The child who notices the clouds darkening before lunch, the puddle freezing overnight, or the wind rattling the flag is already doing earth science — the job is to give that noticing a name and a next question.
The eight tools below do that in different ways. Three come from the agencies that measure the weather for a living — NASA, the National Weather Service and the US Geological Survey — and they cost nothing. The rest come from small independent sites and one worldwide school program: a meteorologist answering children's questions in plain language, a kids' science library with a quiz on every page, and a project where students collect real weather data themselves. All eight were checked on their own official sites on November 4, 2026.
We picked tools that fit PreK–6 classrooms and homeschool families, with free options at every step and reading levels a teacher can match to the class. One familiar name is missing on purpose: NOAA retired the SciJinks site, so it is not listed here. NASA's Climate Kids has also moved — it now lives on NASA's science kids hub, and the link below goes straight to its new home. Every tool here is active today, and none of them was paid to appear.
Key takeaways
- Best free starting point: NASA Climate Kids, with articles, games and videos on weather, climate and the water cycle.
- Weather Wiz Kids answers everyday weather questions in plain language a child can read.
- The USGS Water Science School has the clearest water-cycle teaching, with a new diagram and educator resources.
- JetStream is the National Weather Service's full weather curriculum — written for teachers, free to use.
- GLOBE lets students collect real weather data and see measurements from schools around the world.
Quick comparison
| # | Tool | Best for | Grades / audience | Pricing | Free plan |
|---|---|---|---|---|---|
| 1 | free climate and weather reading | Grades K–5 | Free | Yes | |
| 2 | plain-English weather answers | Elementary students | Free | Yes | |
| 3 | the water cycle, taught properly | Elementary and up | Free | Yes | |
| 4 | short earth science readings with quizzes | Grades 3–6 | Free | Yes | |
| 5 | a full weather curriculum | Teachers and grades 3–6 | Free | Yes | |
| 6 | earth and space science in one place | Grades 3–6 and up | Free + paid | Yes | |
| 7 | students collecting real weather data | Elementary and up | Free | Yes | |
| 8 | quick earth and weather facts | Elementary students | Free | Yes |
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Request a listingThe 8 best picks
- Pricing
- Free
- Free plan
- Yes
- Grades / audience
- Grades K–5
NASA Climate Kids tells the story of our changing planet through the eyes of the NASA missions studying Earth. Short articles explain the greenhouse effect, how clouds form, the water cycle, sea level, glaciers and drought, and short videos answer questions like what the difference is between weather and climate. A teacher can pull one article — how do we know if we are in a drought, or what causes air pollution — and build a lesson around it in minutes.
What we like
- Short articles on the greenhouse effect, clouds, the water cycle, sea level and glaciers
- Games such as CubeSat Builder and Go With the Flow, plus videos on weather versus climate
- Live Earth indicators for carbon dioxide, global temperature, sea ice and sea level
- Mission pages showing how NASA satellites study rain, snow, ice and oceans
Watch out for
- The reading level suits upper elementary best — younger students may need the text read aloud
- Some links lead out to NASA Space Place and other NASA pages
Pricing: Free — the whole site is free to read and use.
- Pricing
- Free
- Free plan
- Yes
- Grades / audience
- Elementary students
Weather Wiz Kids is a site built by meteorologist Crystal Wicker especially for children who want to learn about weather. Its sections cover weather topics, natural disasters, hands-on experiments and a kid's zone, and its weather headlines answer questions such as how winter storms form — cold air, lift and moisture. It is the simplest first stop when a student asks why the sky did what it did this morning.
What we like
- Weather topic pages that answer common questions in plain language
- Natural disaster pages on storms, tornadoes, hurricanes and more
- Hands-on weather experiments for the classroom
- A kid's zone with activities for young weather fans
Watch out for
- The site is a reading library, not a course — there is no tracking or assigned work
- Some pages are text-heavy for the youngest readers
Pricing: Free to read on the site.
- Pricing
- Free
- Free plan
- Yes
- Grades / audience
- Elementary and up
The US Geological Survey's Water Science School is where people of all ages can learn about water, with pictures, data, maps and an interactive center for testing water knowledge. Its newest water cycle diagram shows the global cycle and how human water use affects where water is stored, how it moves and how clean it is. Teacher resources gather activities, diagrams and quizzes, and the topic pages cover the water cycle, the properties of water, water quality, surface water, groundwater and water use.
What we like
- A new water cycle diagram showing the global cycle and human water use
- Educator resources with activities, diagrams and quizzes
- Topic pages on the water cycle, groundwater, water quality and water use
- A Spanish version of the site for bilingual classrooms
Watch out for
- Some pages go deeper than elementary level — pick the topic pages, not the data pages
- The interactive center and quizzes are light, so pair the reading with a hands-on demo
Pricing: Free — the whole site is free to read and use.
- Pricing
- Free
- Free plan
- Yes
- Grades / audience
- Grades 3–6
Ducksters is a kids' science library, and its Earth Science for Kids section covers the whole subject in short pages: the atmosphere, the composition of the Earth, rocks, volcanoes, earthquakes, erosion, the water cycle, climate and weather. Every topic page ends with a ten-question quiz, a recorded audio reading and a set of interesting facts, and the section also has an earth science crossword and word search. It is an easy fit for a reading station or homework.
What we like
- Short readings on rocks, volcanoes, earthquakes, erosion, the water cycle, climate and weather
- A ten-question quiz at the end of every topic page
- Recorded audio readings of each page for struggling readers
- Earth science crossword and word search puzzles
Watch out for
- The reading level suits grades 3 and up better than PreK–2
- Each topic is a single page, so a full unit needs several pages in sequence
Pricing: Free to read on the site.
- Pricing
- Free
- Free plan
- Yes
- Grades / audience
- Teachers and grades 3–6
JetStream is the National Weather Service's online school for weather, written for educators, emergency managers and anyone who wants to learn how weather works. Its curriculum runs from global and large-scale weather patterns through air masses, wind patterns, cloud formations, thunderstorms, lightning, hail, damaging winds, tornadoes, tropical storms, cyclones and flooding, with Learning Lessons woven through the topics and a topic matrix that maps every lesson at a glance.
What we like
- A full weather curriculum from global patterns down to tornadoes and floods
- Learning Lessons woven through the topics for classroom use
- A topic matrix that maps every lesson at a glance
- Colorfully illustrated lessons on clouds, air masses and wind patterns
Watch out for
- The reading level is adult, so it is a teacher resource first and a student page second
- Some lessons are long — pick one topic per lesson rather than assigning the whole stream
Pricing: Free — the National Weather Service says the materials are free to use in any manner.
Windows to the Universe
Best for: earth and space science in one place
- Pricing
- Free + paid
- Free plan
- Yes
- Grades / audience
- Grades 3–6 and up
Windows to the Universe is a portal to the Earth and space sciences, with related material in mythology, art and poetry. Its Sun Today page shows live and recent images of the Sun from telescopes and satellites around the world, and its articles cover climate, the planets and how Earth's systems connect. It also offers teacher resources, workshops and on-site professional development, with classroom, school and district subscription options for educators.
What we like
- Live and recent images of the Sun from telescopes and satellites around the world
- Articles on climate, the planets and how Earth systems connect
- Teacher resources and workshops, plus on-site professional development
- Earth and space science content with mythology, art and poetry links
Watch out for
- Subscription prices are not listed on the site — contact them before budgeting
- The site covers space as well as Earth, so bookmark the Earth pages for a weather unit
Pricing: Much of the site is free to read; classroom, school and district subscriptions are offered for educators, and prices are not stated on the site.
- Pricing
- Free
- Free plan
- Yes
- Grades / audience
- Elementary and up
The GLOBE Program — Global Learning and Observations to Benefit the Environment — is an international science program in which students take part in data collection and the scientific process. Classes follow step-by-step measurement protocols for the atmosphere, biosphere, hydrosphere and pedosphere, enter their measurements, and see recent measurements from schools around the world on a live map. Learning activities and resources support each protocol, and a worldwide community of educators, students and citizen scientists shares the work.
What we like
- Step-by-step measurement protocols for air temperature, clouds, rainfall and soil
- A live map of recent measurements from schools around the world
- Learning activities and resources for the Earth system spheres
- A worldwide community of educators, students and citizen scientists
Watch out for
- Entering data needs a signed-in educator account, so set that up before the first outdoor session
- The site is large — bookmark the protocol and activity pages your class will use
Pricing: Free — the program is free for schools to join and use.
- Pricing
- Free
- Free plan
- Yes
- Grades / audience
- Elementary students
Science Kids is a small New Zealand site of fun experiments, cool facts, online games, activities and projects for children. Its earth facts cover volcanoes, rivers, deserts and more, and its weather facts sit alongside sections on animals, chemistry, space and technology. It is best used as a source of short facts and simple experiments to open a lesson before the class goes deeper with one of the bigger tools above.
What we like
- Earth facts on volcanoes, rivers, deserts and more
- Weather facts and fun experiments for the classroom
- Short, surprising science facts that work as lesson openers
- Online games and activities alongside the reading
Watch out for
- The site is a general science collection, so a full weather unit needs the bigger tools above alongside it
- The facts are short — use them as hooks, then go deeper with one of the bigger tools
Pricing: Free to read on the site.
How we chose
We started from tools PreK–6 teachers actually use and checked every one against its official website, pricing page and feature pages on November 4, 2026. We kept tools that fit elementary classrooms, noted whether a free plan exists, and wrote down honest limitations next to the strengths. Nobody paid to be included, and we don't use affiliate links on this page.
- Fit for PreK–6 classrooms, special education or homeschool
- Clear information on the official site about what the tool does and who it is for
- Free plan or free-for-teachers option noted where one exists
- Still active and maintained, with rebrands noted
How to choose the right tool
Match the tool to the question. The water cycle wants the USGS Water Science School. Daily weather wants Weather Wiz Kids. Climate wants NASA Climate Kids. Rocks, volcanoes and earthquakes want Ducksters. Real data wants the GLOBE Program.
Start with the free government sites. NASA Climate Kids, the USGS Water Science School, NWS JetStream and the GLOBE Program cost nothing, and between them they cover weather, climate, the water cycle and field data. Try those before spending anything.
Check the reading level before you assign a page. Weather Wiz Kids and Science Kids are written for children to read. NASA Climate Kids and Ducksters suit grades 3 and up best. JetStream is written for the teacher, not the student — read it first and adapt the lesson.
Pair the screen with the outdoors. A weather journal, a rain gauge made from a bottle, a week of cloud sketches — the apps are at their best when students look up afterwards. The GLOBE Program turns that habit into real data the class can compare with other schools.
Bookmark the exact page, not the homepage. Several of these sites are big portals — NASA's kids hub, Windows to the Universe and GLOBE — so send students to the specific section or protocol your lesson uses.
Best pick by situation
- You need a weather lesson for tomorrow: Weather Wiz Kids — plain answers ready to read
- Your class is learning the water cycle: USGS Water Science School — a new diagram and educator resources
- You want students to track the weather themselves: GLOBE Program — real measurement protocols
- You need a full weather unit plan: NWS JetStream — a complete curriculum with a topic matrix
- Your students keep asking why the sky does what it does: NASA Climate Kids — articles, games and videos on weather and climate
- You want short readings with a quiz at the end: Ducksters — ten-question quizzes on every earth science page
- You need a quick fact to open a science lesson: Science Kids — short earth and weather facts
Frequently asked questions
What is the best free weather tool for elementary school?
Weather Wiz Kids is the friendliest free starting point, with plain-language answers to everyday weather questions. NASA Climate Kids is the next one to try for climate and weather reading with games and videos. Both are free.
Which tool teaches the water cycle best?
The USGS Water Science School, with its new water cycle diagram and educator resources of activities, diagrams and quizzes. Ducksters has a shorter water cycle reading with a ten-question quiz for a reading station.
Can students collect real weather data?
Yes, with the GLOBE Program. Classes follow step-by-step protocols for air temperature, clouds, rainfall and soil, enter their measurements, and see measurements from schools around the world on a live map. The teacher sets up the signed-in educator account first.
Do any of these cost money?
NASA Climate Kids, the USGS Water Science School, NWS JetStream, the GLOBE Program, Weather Wiz Kids, Ducksters and Science Kids are all free to use. Windows to the Universe has free reading plus paid classroom, school and district subscriptions, and prices are not stated on its site.
Which tool works for the youngest students?
Weather Wiz Kids and Science Kids are written for children to read on their own. NASA Climate Kids and Ducksters suit grades 3 and up better, and JetStream is a teacher resource to adapt rather than a page to hand to a young student.
Make a tool for teachers?
Built something teachers love? We keep these guides fresh, so send us a new tool, updated pricing or a featured spot request.
Request a listingDisclosure: no tool on this page paid to be included and we don't earn commissions from these links. Featured placements, if we ever offer them, will be clearly labeled "Sponsored". Details were checked on each provider's official website on November 4, 2026 and can change.