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what is data roaming

Data roaming enables you to connect your smartphone to the internet when you are in other countries. ... read more

how does chlorine clean swimming pools

The chemical reaction that stops swimmers from getting sick. ... read more

people who study the earth

Throughout history, people have always wanted to understand the planet we live on. They wanted to know why the weather changes from hot to cold and back again. They wanted to know why it rains or snows and what lightning and thunder are. They wanted to know why volcanos erupt and why earthquakes move ... read more

animal adaptations

Animals have to adapt to the world in which they live in order to survive. Every species of animal has a different way of surviving. Species develop better ways of dealing with their environment over time. Traits that help an animal survive are passed on to the next generation. Traits that are not nee... read more

why does looking at the sun damage your eyes

Never look at the Sun unless you are using specially designed glasses that are intended for this purpose. ... read more