Thousands of different animals live on Earth. It is their planet, as well as ours. Sadly, because of what we do, many animals are in danger. An oil spill at sea harms seals, birds and fish. When forests are cut Sown, many animals lose their homes. How many kinds of animals are in danger? […]
Is nuclear power dangerous
Nuclear power stations do not burn fossil fuels. Therefore, they do not make harmful gases. But they do make radioactive waste material. It is dangerous and will have to be guarded for many years into future. Are there alternatives to fossil fuels? There are other ways to make power. Solar panels collect […]
How can governments reduce carbon dioxide levels
Burning petrol in cars puts carbon dioxide into the atmosphere. Governments can build transport systems that don’t make carbon dioxide, and order more trees to be planted. What can I do to help? Use less electricity. This is because most electricity comes from burning fossil fuels which makes carbon dioxide. Switch off lights, TVs […]
How are we making the temperature rise
By burning ‘fossil fuels’ – coal, oil and natural gas – we are putting “greenhouse gases’, such as carbon dioxide, into the atmosphere. The gases surround the Earth and keep heat in. What will happen as the temperature rises? As the Earth’s climate warms up, glaciers and the ice at the North […]
What is a sandstorm
A sandstorm is a thick, choking cloud of sand whipped up by the wind in the desert. If you get caught in a sandstorm the best thing to do is cover your nose and mouth. Then you won’t breathe the choking sand in. The monsoon season can bring severe flooding Is Earth […]
How quickly do tornadoes travel
How quickly do tornadoes travel? Most tornadoes travel at about 30 kph, but some are much speedier movers. They race along the ground as quickly as a car. What’s more, the wind inside a tornado can blow at an amazing 480 kph. Do tornadoes happen at sea? Yes, they’re called waterspouts. These giant twists […]
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 […]
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 […]
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 […]
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 […]