Natural and synthetic materials ( 7B3 Champions group )

1) What is the relation between crude oil and plastic?

• A) Plastic is synthetic material and made from crude oil

• B) Plastic is natural material and made from crude oil

• C) Plastic is natural material and made from crude oil

• D) Crude is a natural material and made from plastic

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2) Wheat, leather, lumber, corn, drinking water, paper, and wool, these materials are examples of…………

• A) Natural Materials

• A) synthetic Materials

• C) None of the above

3)Concrete, plastic, paint, glue, glass, and food coloring, these materials are examples of…………

• A) Natural materials

• B) Synthetic materials

• C) None of the above

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4) What properties are needed in the material used to make these items?

• A) It stretches.

• B) It is strong.

• C) It holds in air

• D) Both A and C

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5) Balloons are made of latex, which can be made from substances that come from crude oil. These substances undergo chemical reactions to form latex. The latex of the balloons is a

• A) Natural material

• B) Synthetic material

• C) Neither natural nor synthetic material

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6) The photo shows where some sports activities are performed. This solution can be achieved with natural or synthetic materials. Why might a synthetic material be the best choice for the solution?

• A) Synthetic materials can be designed to fit a certain need.

• B) Synthetic materials are easier to make than obtaining natural materials.

• C) The use of natural materials has a negative impact on the environment

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NGSS.MS-PS1-3

Ceramic pots are made by heating clay to form a new material. Which statements describe how ceramics are made?

• A) Ceramics are made by a physical change.

• B) Ceramics are made by a chemical reaction.

• C) The atoms in the starting materials rearrange when clay is heated.

• D) Both B and C

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8) A material is a substance or mixture of substances that make up an object.

• A) True

• B) False

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9) Every material has its own set of physical properties which can observed without changing the identity of the material.

• A) False

• B) True

10) Chemical properties don't describe a material’s ability to undergo chemical reactions and form new substances.

• A) True

• B) False

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