First Children Encyclopedia

220

Science and everyday life

What was the first satellite in space?

Science and technology

Cities at night are bright

places, lit up by office,

house, and street lights.

Science is not just used by

experts working in laboratories.

It is part of all our lives. From

brushing your teeth to setting

your alarm, science is with you

all day, every day.

Electricity

Electricity lights up the

world and gives us the

energy to cook, travel,

work, and play.

Teflon pan

Teflon

Invented in 1938, Teflon

was used in space suits.

In everyday life it stops

stuff sticking

to hot

surfaces.

Iron

Plastic

building

blocks

Plastic

medicine

bottles

Plastic fantastic

Look around you and you will see

dozens of things made of plastic.

From containers to toys,

plastic is a versatile

and hard-wearing

material. Some

plastics can

now be recycled.