The Chemistry of Materials

The Chemistry of Materials

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the most important factor when choosing a material for a product?

Back

The most important factor is all of the following: how much it costs to produce, the environmental impact of the manufacturing process, and how easy it is to recycle after the container is used.

2.

FLASHCARD QUESTION

Front

What does an element contain?

Back

An element contains one kind of atom.

3.

FLASHCARD QUESTION

Front

Which of the following is a compound: H, Hg, CO, or Cl?

Back

CO (Carbon Monoxide) is a compound.

4.

FLASHCARD QUESTION

Front

What are physical properties?

Back

Physical properties are characteristics that can be observed without changing the substance, such as electrical conductivity, hardness, and ability to transmit light.

5.

FLASHCARD QUESTION

Front

What phase are most elements in at room temperature?

Back

Most elements are in the solid phase at room temperature.

6.

FLASHCARD QUESTION

Front

Define a compound.

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

7.

FLASHCARD QUESTION

Front

What is the difference between an element and a compound?

Back

An element is made of one kind of atom, while a compound is made of two or more different kinds of atoms.

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