Day, night and weather
The sky changes from day to night, and the weather changes from day to day.
- Day and night
- The Sun in the sky
- The Moon and stars
- Kinds of weather
- Wind, rain and storms
- Seasons where you live
6 chapters planned
Earth and space
Every book on this topic, lowest level first. Each one builds on the book above it. If a book feels hard, go back up the ladder to the one before.
NextYou are here Earth, Sun and Moon
The Earth spins to give us day and night, and the Moon goes round the Earth.
- Sun, Earth and Moon
- Why we have day and night
- The Sun seems to move
- A year: going round the Sun
- The Moon goes round the Earth
- Phases of the Moon
- Eclipses
7 chapters
NextYou are here Rocks, soil and fossils
Rocks form and change over a very long time, and some hold fossils of life from long ago.
- Three kinds of rock
- Inside the Earth
- Weathering and erosion
- The rock cycle
- Soil
- Caring for soil
- Fossils
- Reading Earth's history
8 chapters
NextYou are here The solar system and seasons
The Earth is one of eight planets going round the Sun, and its tilt gives us seasons.
- The planets
- How big and how far
- Gravity and orbits
- Tilt and the seasons
- Seasons around the world
- Day length and the Sun's height
- Moons, asteroids and comets
- Exploring space
8 chapters
Atmosphere and climate
The air around the Earth shapes our weather and climate, and people are changing it.
- The air and its layers
- Weather and air pressure
- Winds, monsoons and storms
- Climate zones
- Air pollution
- The greenhouse effect
- Climate change
- Responding to climate change
8 chapters planned
Astrophysics and cosmology
Physics lets us measure the stars and trace the universe back to its beginning.
- Telescopes
- Measuring distances in space
- The brightness of stars
- Black body radiation
- Classifying stars
- The life of stars
- The expanding universe
- The Big Bang and beyond
8 chapters planned