Natural materials come from 3 sources: animals, plants and _________, ground, supermarket, Where can we get the leather from?, crocodile, silkworm, Which of these objects needs to be waterproof?, tissue, water bottle, We can test the hardness of a material by__________., scratching, adding weights, Which of these objects comes from manufactured materials?, cotton shirt, windows, what property is the girl testing?, flexibility, elasticity, Which of these is NOT the property of plastic?, water-absorbent, waterproof, Whichof these objects is made of glass?, Which of these materials comes from plants?, rubber, leather, Which of these materials comes from the ground?, silk, clay, Which of these materials comes from animals?, wool, rocks, Which of these materials that is made from more than one material ?, Which of these material is natural?, Metal, Plastic, Which chair is weaker?, Plastic, Wooden, Which of these is an example of a material turning into a new material?

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