Separation techniques

Presentation

•

Science

•

6th - 8th Grade

•

Medium

•

NGSS

MS-ESS1-1, MS-PS2-5, MS-PS1-2

Standards-aligned

Bloomington Innovation

Used 7+ times

FREE Resource

7 Slides • 10 Questions

Separation techniques

Multiple Choice

Suggest the property that allows iron to be separated from electronic waste.

Size

Boiling point

Solubility in water

Magnetic attraction

Multiple Choice

The particles in the mixture passing out of A are smaller than 10 mm in size. Which separation technique in A is this?

Filtration

Evaporation

Distillation

magnetic attraction

Fill in the Blanks

Suggest why the pieces of iron fall into container C instead of remaining on the moving belt. The roller is …………………………………. but the moving belt is not.

Type answer...

Multiple Choice

As the pieces of iron on the moving belt move away from the magnetic roller, there is [more/less] magnetic attraction. Thus, they fall off the moving belt and into container C.

Less

magnetic attraction

magnetic

less magnetic

Multiple Choice

How many dyes are there in sample F?

Multiple Choice

The dyes present in X could not be investigated. Why is this so?

X only contains one dye.

X was not separated as it is insoluble in the solvent.

X did not move up the chromatography paper.

Multiple Choice

W, X, Y and Z are toxic. Is F safe for eating?

Yes

F is not safe as it contains Y and Z which are toxic.

X did not dissolve and is not separated.

Multiple Choice

The pore size of the N95 mask is 0.3 microns while the average diameter of the particulate matter is 2.5 microns. Which is larger in size, the pore size or the particles?

Pore size of N95 (0.3 microns)

Particulate matter (2.5 microns)

Multiple Choice

How does the N95 mask prevent particles from reaching your nose?

Paper chromatography

Distillation

Magnetic Attraction

Filtration

Fill in the Blanks

How does the N95 mask work?

The particles are [bigger/smaller] than the pores in the mask. This prevents the particles from passing through the mask and entering the nose.

Type answer...

Size of particulate matter is larger than pore size.

Filtration

The particulate matter are too big to pass through the pores of the N95 mask and into the lungs.

Separation techniques

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