6th Grade Material Exam

The top and bottom of each container below are labeled. Which model best represents the arrangement of gas molecules inside a sealed container as viewed from the side?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Because copper is a metal, it is

• liquid at room temperature

• nonreactive with other substances

• a poor conductor of electricity

• a good conductor of heat

Tags

NGSS.MS-PS3-3

A student placed a rock in a graduated cylinder containing water, causing the water level in the cylinder to increase by 20 mL. This increase represents the rock’s

• mass

• volume

• solubility

• temperature

A battery-powered cart pulls an 800-gram load across the floor. If the load were reduced to 400 grams, and the force used to move the cart remained the same, the cart would

• move slower

• move faster

• move at the same speed

• stop moving

Tags

NGSS.MS-PS2-2

Which property of a substance indicates whether the substance is a liquid or a solid at room temperature?

• melting point

• electrical conductivity

• flexibility

• solubility

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Under which conditions would a sugar cube dissolve most quickly when placed in a liter of water at room temperature?

• A whole sugar cube is added and the water is stirred.

• A whole sugar cube is added and the water is not stirred.

• A crushed sugar cube is added and the water is stirred.

• A crushed sugar cube is added and the water is not stirred.

Tags

NGSS.MS-PS1-2

All of the liquid from a test tube is poured into a beaker, as shown in the diagram.

Compared to the liquid that was in the test tube, the liquid in the beaker has

• a different volume, but the same shape

• a different volume and a different shape

• the same volume, but a different shape

• the same volume and the same shape

Tags

NGSS.MS-PS1-2

The diagram below shows an inflated balloon attached to a straw that is moving along a string. Air is escaping from the open end of the inflated balloon. Some forces that are acting on the straw are shown by the four labeled arrows.

What causes the balloon to move along the string?

• force from string

• friction between string and straw

• force from escaping air

• weight of balloon containing air

Tags

NGSS.MS-PS2-2

The force of an object, with a certain mass accelerating at a certain rate, can be determined by using the equation below.

force = mass ╳ acceleration

Which object would have the greatest force?

• a 5-kg object accelerating at 10 m/s2

• a 5-kg object accelerating at 20 m/s2

• a 20-kg object accelerating at 4 m/s2

• a 20-kg object accelerating at 3 m/s2

Tags

NGSS.MS-PS2-2

The diagram shows a triple-beam balance.

What is the maximum mass, in grams, that could be measured by this balance?

• 110

• 500

• 610

• 1510