十万个为什么杂志 省级期刊

Prehistoric people and the first tools

刊期：2008年第S2期

Do you know the important steps in the evolution of prehistoric people? Find out answers in the following passages.

Prehistoric people and fire

刊期：2008年第S2期

1 Humans probably picked up burning branches when lightning caused fires. They kept fire going by setting fire to other sticks. The oldest traces of the use of fire have been found in China. They date back 600,000 years.

The first farmers

刊期：2008年第S2期

From around 9000 BC, people in the Middle East developed a new way of life. They began to domesticate animals and grow crops to make food. This meant they could stay in one place and didn’t have to keep

A Chinese basketball hero

刊期：2008年第S2期

Yao Ming was born in Shanghai, China in 1980. Although he is still young, he is already one of the most famous professional basketball players. He is also one of the tallest: he is 228 centimeters tall. He plays for the Houston Rockets.

The first voyage round the world

刊期：2008年第S2期

This map shows the main stages of the first sea voyage round the world. Follow the route and relive the adventures(探险) of Magellan and his companions (同伴).

Marie Curie discovers radium

刊期：2008年第S2期

Marie Sklodowska was born in 1867 in Warsaw, Poland. Since 1891, Marie has attended classes at a famous university in Paris. At the university the other students were mostly boys.

The robot orange-picker

刊期：2008年第S2期

In Spain, orange-picking has become a task in charge by robots. Let’s get to know the general procedures(工序) and experience the modern agriculture together!

Playing football

刊期：2008年第S2期

Advice from a top footballer You need to be very fit to play football. Do all the exercises your coach tells you to do. Always make sure you warm up before a match. If you don’t, you might strain a muscle!

Extraordinary houses

刊期：2008年第S2期

Here are three most unusual houses, designed by artists from Brazil, Japan and Belgium. How would you like to live in any of them?

Creatures glowing in the dark

刊期：2008年第S2期

Some animals give off light at night. If you go to nature on holiday, look out for glow-worms on warm summer nights. They can be seen up to about 100m away.

The records of planet Earth

刊期：2008年第S2期

Have a look at the geographical areas on this map. Can you see the deserts, forests and mountains? We’ll show you some of the world’s amazing records.

Why is glue sticky?

刊期：2008年第S2期

Glue is like a soft, sticky paste because it contains liquid. This is what helps it to get right inside tiny holes and cracks where it’s needed, and to fill them up.

Making a mini trimaran

刊期：2008年第S2期

Keeping a caterpillar

刊期：2008年第S2期

You, too, can watch a caterpillar turn into a butterfly! Just follow these simple instructions.

Two delicious recipes

刊期：2008年第S2期

Just about every young American eats peanut butter and "jelly"(jam) sandwiches. Peanut butter is made of chopped-up peanuts and oil. There are two sorts of peanut butter – the crunchy(松脆的) kind with small bits of peanuts in and the smooth kind.