Reviewing the Structure and Properties of Matter

Front

Example of a synthetic material made from natural resources: Cotton fabric, Plastic bottle, Gold ring, Wooden chair

Back

Plastic bottle

Answer explanation

A plastic bottle is a synthetic material made from natural resources like petroleum. In contrast, cotton fabric, gold rings, and wooden chairs are made from natural materials without synthetic processing.

Tags

NY.SCI.6-8.MS-PS1-3

Front

What happens to the temperature of water when thermal energy is added to it?

Back

It increases

Answer explanation

When thermal energy is added to water, its molecules move faster, leading to an increase in temperature. Therefore, the correct answer is that the temperature of water increases.

Tags

NY.SCI.6-8.MS-PS1-4

Front

Which property can be used to identify a sample of matter?

Back

Density

Answer explanation

Density is a unique property that can help identify a sample of matter, as it relates mass to volume. Unlike color, shape, or size, density remains constant for a substance, making it a reliable identifier.

Tags

NY.SCI.6-8.MS-PS1-7

Front

What is a mixture?

Back

A combination of two or more substances that keep their own properties

Answer explanation

A mixture is defined as a combination of two or more substances that retain their individual properties, unlike a pure substance or a chemical compound, which have uniform characteristics.

Tags

NY.SCI.6-8.MS-PS1-8

Front

Which natural resource is used to make synthetic rubber?

Back

Petroleum

Answer explanation

Synthetic rubber is primarily made from petroleum, which provides the necessary hydrocarbons. Other options like water, wood, and sand do not contain the compounds needed for rubber production.

Tags

NY.SCI.6-8.MS-PS1-3

Front

When ice melts, what change occurs in the motion of its particles?

Back

The particles move faster

Answer explanation

When ice melts, the heat energy increases the motion of its particles, causing them to move faster. This transition from solid to liquid involves an increase in kinetic energy, which is why the correct answer is that the particles move faster.

Tags

NY.SCI.6-8.MS-PS1-4

Front

What is the formula for density?

Back

Density = Mass ÷ Volume

Answer explanation

The correct formula for density is Density = Mass ÷ Volume. This means that density is calculated by dividing the mass of an object by its volume, making the second option the right choice.

Tags

NY.SCI.6-8.MS-PS1-7

Front

Which of the following is a mixture? Table salt, Pure water, Air, Gold

Back

Air

Answer explanation

Air is a mixture of different gases, primarily nitrogen and oxygen, making it the correct choice. In contrast, table salt, pure water, and gold are pure substances.

Tags

NY.SCI.6-8.MS-PS1-8

Front

Why are synthetic materials important in society?

Back

They can have properties that natural materials do not have

Answer explanation

Synthetic materials are important because they can possess unique properties, such as increased durability or flexibility, that natural materials may lack. This allows for innovative applications in various industries.

Tags

NY.SCI.6-8.MS-PS1-3

Front

A student heats a solid substance and observes it turning into a liquid. Which process is the student observing?

Back

Melting

Answer explanation

The student is observing melting, which is the process where a solid substance turns into a liquid when heated. This is distinct from freezing, condensation, and sublimation.

Tags

NY.SCI.6-8.MS-PS1-4