Natural Wonders Around the World
Our planet is full of amazing places that look like they belong in a storybook. These Natural Wonders are created by Earth’s forces—like wind, water, and fire—and they teach us how the planet works. Let’s explore four spectacular wonders, learn new words, and even try a simple experiment you can do at home!
1. Majestic Mountains
What They Are: Huge landforms that rise high above the surrounding land.
How They Form: Most mountains are built by Plate Tectonics (the slow movement of giant slabs of Earth’s crust). When two plates push together, the crust crumples and lifts up, creating peaks such as the Himalayas.
Cause & Effect:
- Cause: The Indian Plate collides with the Eurasian Plate.
- Effect: The land is forced upward, forming the world’s tallest mountains and creating new habitats for animals like snow leopards.
Did You Know? Mount Everest’s officially recognized height is 8,848.86 m above sea level. Mauna Kea is more than 10,000 m tall when measured from its underwater base, showing that “tallest” depends on where measurement begins.
New Vocab:
- Craton – a stable, ancient part of the Earth’s crust.
- Glacier – a slow‑moving river of ice that can carve valleys in mountains.
2. Deep Blue Oceans
What They Are: Vast bodies of salty water covering about 71 % of Earth’s surface.
How They Shape The World: Winds drive many surface currents, while differences in temperature and saltiness help drive deep circulation. Together, ocean movements redistribute heat and influence climate.
Cause & Effect:
- Cause: Water density changes with temperature and salinity, and winds push the ocean surface.
- Effect: Connected currents move water, nutrients, and heat around the planet.
Did You Know? Australia’s Great Barrier Reef is the world’s largest coral reef ecosystem. It covers an enormous area, but the popular claim that astronauts can easily see it from the Moon is false.
New Vocab:
- Salinity – the amount of salt dissolved in water.
- Biodiversity – the variety of living things in an area or across Earth.
3. Canyons Carved by Water
What They Are: Deep valleys with steep sides. Rivers, weathering, erosion, and movements of Earth’s crust can shape them over millions of years.
At the Grand Canyon in the United States, the Colorado River removes rock and sediment while erosion widens the canyon. Different rock layers reveal different parts of Earth’s history.
New Vocab:
- Erosion – movement of worn-away rock or soil by water, wind, ice, or gravity.
- Stratum – one layer of rock; the plural is strata.
4. Waterfalls in Motion
What They Are: Places where flowing water drops over a steep edge. Waterfalls can form where hard rock lies above softer rock, along faults, or where glaciers have reshaped a valley.
As water and carried sediment wear softer rock away, an overhang may collapse. The waterfall can slowly retreat upstream. Different waterfalls form in different ways, so this pattern is not universal.
Mini Experiment: Watch Erosion
You Need: A shallow tray, damp soil or sand, a cup, a spoon, water, and an adult helper.
- Protect the work surface and build a gentle slope in the tray.
- Press the soil down, then use the spoon to make a small starting channel.
- Slowly pour a little water at the top while the adult keeps the tray steady.
- Observe where material moves and where it is deposited. Do not pour soil or sand down a sink; let an adult dispose of it.
What You Learn: Flowing water can carry loose sediment and carve channels. A model works much faster and uses looser material than a real canyon, so it demonstrates a process rather than a realistic timescale.