Don't pour dangerous __________________ down the sink!
chemicals
Cardboard may be cut with _________________ .
scissors.
Windows are made of ____________.
glass
Class bottles ____________________ (can / clean) with soap and water.
can be cleaned
We save electricity when _______________________________ .
we turn off a light.
Use the right ________________ to put up a picture.
tools
To save the Earth, glass and plastic _______________ (must / recycle) .
must be recycled
When we pick up rubbish from the ground, ___________________________ .
we make the environment cleaner.
Which materials can be used to make cleaning products, medicines, batteries, toothpaste ?
chemicals
Chemicals must be kept in _____________________ .
closed bottles or cans.
In the recycling process, cardboard ______________ (will / take ) to a recycling centre.
will be taken