This week we will be learning about how living creatures depend on each other, and make up what are called ecosystems:
Go to thissite on Ecosystems. Do some Science in Motion and Game activities or one of the Review with Quiz activities (those are longer) until the timer rings;
Then write about what you have learned about how humans can affect the environment.
Humans ruin the world by using drugs and they never stop.
human infect the envroment by buying new cherash.
I learn that if you trow the trash you could heat the environment. The trash is very bad for the environment.