How do you make metal?

Metals are chemical elements which means they are part of the basic building blocks of our universe and cannot be broken down into anything simpler.

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When we talk about metals we usually mean things like iron, tin or lead. These are found in rocks which are called an ore.

To make the metal you have to break down the ore to separate the metal from the rock. There are a few ways to do this, you can use heat, electricity or other chemicals, depending on the type of ore.

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Once the metal is separated it can be formed into moulds, sheets, wires etc.

For more information on metals from Science Kids.

For a video on the steel making process, please see below:

How do clouds form?

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Clouds are formed when the water vapour in air cools down and forms droplets of water or ice. When lots of these droplets come together they form a cloud.

For a more in depth answer from Weather Wiz Kids.

For a video explanation, please see below.

If you prefer to learn by doing, please see this video of a fun experiment.

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What is the difference between a crocodile and an alligator?

Crocodiles and alligators are two separate species of reptile, although they are closely related and look quite similar.

There are a few differences between them but the easiest way to tell the difference is by looking at their snout. A crocodile’s snout is much narrower than an alligator’s.

A more in depth answer from Science Kids

A short video showing the differences.

How do people predict the weather?

The science of weather prediction or forecasting is called meteorology. A person who predicts the weather is a meteorologist.

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A meteorologist will collect data from a range of sources to show what the current weather conditions are. They then predict what will happen based on what has happened in the past, when the conditions were the same or similar.

Among the type of data collected is air pressure, temperature, wind speed and direction. This data is collected by weather stations which are dotted around the country.

A more in depth answer from Weather Wiz Kids

A video explanation:

Where can you find quicksand?

You can find quicksand in many different places. Quicksand is sand that has been mixed with so much water it forms a mixture that is in between a liquid and a solid. It does not actually suck you down, it is just so soft that it can’t support your weight, so you sink into it.

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Learn how to make your own quicksand with this link

How do birds fly?

A bird’s body is specially adapted to help it fly. The most important body parts are the wings, but there are other features of a bird’s body that helps it fly.

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A bird has hollow bones to make them light. They also have powerful flight muscles and a strong heart and lungs to provide the oxygen needed to power these muscles.

A bird’s wing works in similar way to an aircraft’s wing. They are a particular shape which is called an aerofoil. Because of the shape of the aerofoil, air flows over and under the wing at different speeds. Slower air flowing under the wing produces lift. While the faster air flowing over the wing produces drag.

When a bird flaps its wings the rotation of the wing with the lift propels the bird forward in flight. This is called thrust.

 

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