MCAS Review Science

Which of the following is the best example of heat being transferred by conduction?

• ocean currents moving warm water to cold water

• mountain boulders warming up in bright sunlight

• rocks buried in sand absorbing heat from surrounding sand

• air masses moving from high-pressure to low-pressure regions

Which of the following provides the best evidence that a chemical change is taking place?

• A liquid forms as a solid object melts.

• A flame burns on the surface of a solid.

• Steam rises from the surface of a liquid.

• A metal object becomes shorter when it is cooled.

Tags

NGSS.MS-PS1-2

Methane and propane are two compounds that are composed only of carbon and hydrogen atoms. The table below shows some of the properties of these two compounds. Which of the following conclusions is best supported by the information in the table?

• When two elements combine, the mass of each element changes.

• When two compounds are mixed, the state of matter of the mixture changes.

• Two elements can combine to produce different substances with different properties.

• Two compounds can be mixed together to produce different materials with different properties.

Tags

NGSS.MS-PS1-1

A manufacturer is considering using four different materials to construct a pan for cooking on a stove. The table shows the thermal conductivity and melting point of each material. a material with a higher thermal conductivity value conducts more thermal energy.

Select the correct answers to complete the sentence based on the information

The manufacturer should use _____ for the bottom of the pan and ___ for the handle.

• aluminum, iron

• copper, iron

• stainless steel, iron

• copper, stainless steel

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The equation below shows the products formed when a solution of silver nitrate (AgNO₃) reacts with a solution of sodium chloride (NaCl).

AgNO₃ + NaCl -> NaNO₃ + AgCl

In this equation, the total mass of the reactants is

• greater than the total mass of the products

• equal to the total mass of the products

• equal to the mass of AgCl

• less than the mass of AgCl

Tags

NGSS.MS-PS1-5

Carbon dioxide is an example of

• a mixture

• an element

• a solution

• a compound

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The diagrams represent three phases of matter. What are those three in order (A,B,C)?

• Liquid, Gas, Solid

• Solid, Liquid, Gas

• Solid, Gas, Liquid

• Liquid, Solid, Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The diagram represents a sodium atom bonding to a chlorine atom to form sodium chloride. Which statement is supported by this diagram?

• Sodium chloride is an element

• Sodium chloride is a mixture

• Sodium chloride is a compound

• Sodium chloride is composed of only one atom.

Tags

NGSS.MS-PS1-1

The density of sulfur is 2.0 g/cm³. The volume of a sample of sulfur was calculated to be 5.0cm³. What is the mass of that sample?

• 2.5 g

• 2.0 g

• 5.0 g

• 10.0 g

Ammonia gas would be classified as

• a compound

• a mixture

• an element

• an atom

Tags

NGSS.MS-PS1-1