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1) What are the characteristics of plastic? a) It's flexible, hard and fragile. b) It's rigid, hard and fragile. c) It's soft and resistent. 2) A physical change occurs when matter changes... a) its color. b) its internal properties. c) its shape or state. 3) Combustion, oxidation and putrefaction are examples of what? a) Physical changes b) Chemical changes c) Homogeneous mixtures 4) Chocolate powder and milk are an example of what? a) Homogeneous mixture b) Heterogeneous mixture c) Physical change 5) Liquids... a) have definite volume and shape. b) don't have definite volume or shape. c) have definite volume, but indefinite shape. 6) The formula to find out density is... a) mass / volume b) volume / mass c) shape / volume 7) Gravity is considered a... a) Physical change b) Non-contact force c) Homogeneous mixture

Year 4 | Unit 5 - Cycle 3 | Let's Recap!

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