初中可读的有趣科普知识整理interesting science

SCIENCE AND TECHNOLOGY

The world we live in is changing fast! For example, modern houses are different from traditional ones. They are made of new materials such as concrete, iron and glass instead of natural materials such as stone, wood and leaves. Inside a modern house we find electric lights, refrigerators, gas cookers, radios, television sets - perhaps even computers. People are usually much healthier than they used to be. We expect to live longer than our ancestors. Many of us wear new kinds of clothes, made from new kinds of cloth. We eat different foods from our ancestors, and prepare them differently. We also travel further and faster than they did. They walked, or rode an animal, or paddled a canoe. Now we use a bicycle, a car, a truck or a motorboat. There are also much larger vehicles that carry many people and move huge loads. We can fly long distances at great speeds in aeroplanes. We can pick up a telephone and speak to people who are far away. And we learn about important events all over the world, as they are happening, by listening to the radio, watching television or 'going on the

more recent and has happened very quickly.

Traditional life Modern life

When our grandparents were young, it would have been difficult for them to imagine some of the marvels of the modern world. What has caused all these amazing changes? The answer is science and technology! Science is a method used by people called scientists to find out about the world around us. Science also refers to the knowledge that scientists have obtained. Technology is how we apply our knowledge and experience to make things and do things that are useful to us.

10 INTERESTING SCIENCE FACTS

1/ It takes 8 minutes 17 seconds for light to travel from the Sun’s surface to the Earth.

2/ 10 percent of all human beings ever born are alive at this very moment.

3/ Every year over one million earthquakes shake the Earth. 4/ Every year lightning kills 1000 people.

5/ If you could drive your car straight up you would arrive in space in just over an hour.

6/ The Earth is 4.56 billion years old…the same age as the Moon and the Sun.

7/ One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a …pea.

8/ The tallest tree ever was an Australian eucalyptus –In 1872 it was measured at 435 feet tall.

9/ The earliest wine makers lived in Egypt around 2300 BC. 10/ There are 60,000 miles of blood vessels in the human body.

Funny Science Jokes

Can't be done sorry, it's a hardware problem.

What did the volcano say to his wife? I lava you so much!