Category Archives: Blog

How big are hurricanes

Hurricanes can be enormous. Some measure 3,000 kilometres across and even the smallest are about half the size of Britain. Winds inside,  a hurricane can blow at over 300 kph.   Hurricanes can even pick up and dump aeroplanes   Amazing! If you could collect the energy inside a hurricane for one day and turn […]

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What sets off an avalanche

If the snow gets too heavy, it can suddenly start to slip and slide. But other things can trigger an avalanche. A skier, or even a car door being slammed, can set the snow sliding.   Layers of snow and ice build up on mountainside, Weight of snow creates cracks, and a large chunk slips […]

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When do thunderstorms happen

Thunderstorms usually happen on a hot, summer’s day when the air is warm and sticky. Watch out for huge, dark, tall thunderclouds gathering in the sky. They’re a sure sign a storm’s brewing. Time to head indoors!   What makes thunder rumble? Lightning is incredibly hot, about five times hotter than the Sun’s surface. As […]

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What is a tsunami

Tsunamis are gigantic waves which can be 30 metres high and 200 kilometres long. The word tsunami means ‘harbour wave’ in Japanese because of the way the waves crash into the harbour. They are also called tidal waves. Is it true? The biggest tsunami was as tall as the Statue of Liberty.   YES. This […]

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Why do people live near volcanoes

Despite the danger, many people all over the world live near volcanoes. The ash that explodes out of a volcano makes the soil very rich for growing crops. People also use volcanic rock for building.   Is it true? You only get volcanoes on /an   There are hundreds of volcanoes on land and many […]

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How do rainforests grow

Rainforests grow in layers depending on the height of the trees. The tallest trees poke out above the forest. Below them is a thick roof of tree-tops called the canopy. Next comes a layer of shorter trees, herbs and shrubs.     What are grasslands? Grasslands are huge plains of grass, trees and bushes. They […]

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Which country has most islands

Which country has most islands? The country of Indonesia in South East Asia is made up of more than 13,000 islands. But many of the islands f are tiny and people only live on about 1,500 of them.   Is it true? New islands keep being made.   YES. In 1963, a new island, called […]

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How high are waterfalls

How high are waterfalls? The highest waterfall in the world is Angel Falls in Venezuela. It plunges 979 metres down the side of a mountain. Angel Falls are 20 times higher than the famous Niagara Falls in North America.   Is it true? Rivers into the seal.   YES. Most rivers flow into the sea […]

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Where do rivers begin

Where do rivers begin? Rivers begin as fast-flowing streams high up on mountainsides. Some streams bubble up from underground. Others flow from lakes or trickle from the tips of icy glaciers when they start to melt. The 1 start of a river is called its source.   Amazing! The world’s shortest river is D River […]

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Why is the sea salty

Why is the sea salty? The sea’s salty taste comes from ordinary salt. It’s the same stuff you sprinkle on your food. The rain washes the salt out of rocks on land, then rivers carry it into the sea. The people in the picture are collecting salt left after sea water dries.     Is […]

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