Look at these two things: a wooden spoon and a plastic spoon. Both do the same job. Where do you think each one came from?
Hands up: which one grew or was found in nature, and which one was made by people?
Some materials come straight from nature with only light change. We call those natural. Others are made or heavily changed by people. We call those manufactured.
Talk to your partner: is a cotton T-shirt natural, manufactured, or a bit of both? We will use the idea of a raw material (the starting stuff from nature) to help us decide.
In your group, sort every sample on your tray into two piles: natural or manufactured. Talk about each one before you place it. If you disagree, put it on a third pile called not sure and be ready to say why.
Your trays mostly split into two piles. These six do not split cleanly.
For each one: what did it start as, and what did people do to it? Then decide which pile it belongs in, and be ready to argue.
One of the six is the only one that did not start as something natural. Which?
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