8th Grade Midterm 2024 Part 2

To separate a mixture of sand and water what separation method is used?

• filter paper and funnel

• distillation

• by hand

• evaporation

The best way to separate a mixture of salt and water uses what separation method?

• Filter paper and funnel

• distillation

• by hand

• evaporation

Two or more substances mingled together, but not chemically combined are known as a

• compound

• mixture

• residue

• solution

When substances are combined as a mixture,

• they keep their physical properties

• their physical properties combine

• their physical properties change

• they lose some of their physical properties

Tags

NGSS.MS-PS1-1

Separating salt from ocean water to obtain salt would best be accomplished through which process?

• evaporation

• filter paper and funnel

• straining

• distillation

Tags

NGSS.MS-PS1-4

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 below. 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

The diagram below shows two magnets. If the magnets are brought closer together, they will

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which change is the best example of a physical change?

A student is trying to determine if a certain beetle will help control the population of a harmful plant species. Which sequence of steps would be best suited for this investigation?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4