Master the Secrets of the Universe!
An interactive journey through space and time. Discover how the Moon was born, how stars are made, and how our world shifts beneath our feet.
👤 Student Profile
1.0 Stellar Nurseries
Space is NOT empty! It is filled with giant clouds of gas and dust called nebulae.
☁️ What is a Nebula?
Nebulae are mainly Hydrogen (75%) and Helium (24%). When gravity pulls the cloud inward, it heats up and becomes a stellar nursery—a star being born!
🔭 How Do We See Through the Dust?
Scientists use infrared light to detect the heat from protostars forming inside dark nebulae, long before they shine with visible light.
💡 Did You Know? The famous "Pillars of Creation" nebula is 7,000 light years away. A single light year = 9.46 trillion km!
🔬 Mini-Lab: Nebula Collapse
Drag the slider to add gravity ↓
GRAVITY: 0% — drag the slider
2.0 Where Did the Moon Come From?
Scientists have debated this for over 100 years. Two major theories emerged...
Old Model (1800s)
Fission Theory
A fast-spinning early Earth flung off a chunk that became the Moon. Evidence: the Moon drifts away 4 cm every year.
This theory was rejected — it couldn't explain why the Moon has no large iron core, unlike Earth.
Current Model
Giant Impact Hypothesis
A Mars-sized planet called Theia crashed into Earth ~4.5 billion years ago. Debris from Earth's crust was thrown into orbit and formed the Moon.
Earth
Theia
Moon rocks share the same oxygen isotopes as Earth's mantle — a 99.9% composition match!
⚡ Quick Check — Test Your Understanding
The Giant Impact Hypothesis is the CURRENT accepted theory because:
2.1 Activity: Moon Formation Sequence
Click the events in the CORRECT chronological order (1 → 4)
💡 Rock Clue: Moon rocks collected by Apollo astronauts showed the same oxygen-isotope signature as Earth — the "smoking gun" for the collision theory!
3.0 Continental Drift
In 1912, Alfred Wegener looked at a world map and had a revolutionary idea…
He proposed a supercontinent called Pangaea that existed 200 million years ago. Scientists initially rejected him because he couldn't explain the mechanism of movement.
📋 Evidence Wegener Used:
Jigsaw Fit
Africa & South America coastlines match perfectly
Fossil Evidence
Glossopteris fern found in India, Antarctica, and Africa
Rock Layers
Matching rock formations on opposite continents
The Theory Today
Earth's crust is broken into Tectonic Plates that float on the semi-liquid mantle. They move due to Convection Currents from the Earth's hot core — typically 2–10 cm per year.
3.0 The Pangaea Puzzle
Wegener said the continents fit like a jigsaw. Can YOU find the matching pair?
Atlantic Ocean
Which two continents fit together like a jigsaw puzzle?
3.1 Seafloor Spreading Scanner
Drag the scanner across the mid-ocean ridge to detect magnetic stripes!
Magnetic Polarity
Distance from Ridge
💡 The Magnetic Tape Recorder! As magma cools at the ridge, minerals align with Earth's poles. Since poles flip every few million years, the seafloor records the entire history of plate movement like a tape!
Activity: Plate Boundary Match-Up!
Click a boundary type on the left, then click its matching description on the right.
Boundary Types
Descriptions
Final Science Mastery Check
15 Questions · Cambridge 0893 Curriculum
Mission Accomplished!
Your Dynamic Earth & Space results:
Scientific Accuracy