There are a lot of harmful effects of the internet on children. First of all, especially teenagers spend most of their time on the internet. For example, this situation causes physical health problems for some children. Secondly, most children become addicted, so they stay away from social life. Especially many kids start neglecting their homework. Finally, children may meet wrong people. This is really very dangerous because they are defenseless. In short, internet has a lot of negative impacts on kids.