'Plastics play' presentation slideshows

1. Does your ghak stretch? 2. Describe its texture, feel, and abilities (what can it do).

1. Does your ghak stretch? 2. Describe its texture, feel, and abilities (what can it do). 3. What happens when you pull hard on your ghak? 4. Roll a piece into a ball and drop it onto your table. What happens?

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