Stickler #6 Review

Which of the following is evidence of a physical change?

• New substance

• Shape Change

• Light produced

• Gas released.

Which tools are best for separating a mixtures of sand, iron filings, and water?

• Hot plate and filter

• Tweezers and filter

• Filter and magnet

• Magnet and hot plate

Tags

NGSS.MS-PS2-3

Which mixture can be separated using a filter?

• sand and iron filings

• saltwater

• sand and water

• none of the above

How to separate salt and water?

• Decantation

• Filtration

• Evaporation

• Sieving

If an object has a density of .6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Tags

NGSS.MS-PS2-2

If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  

• sink
• float

What is liquid to solid?

• freezing

• evaporation

• sublimation

• deposition

Tags

NGSS.MS-PS1-4

What is solid to gas?

• freezing

• condensation

• sublimation

• melting

Tags

NGSS.MS-PS1-4

What is the density of water?

• 3 g/mL

• 1 g/mL

• 0.5 g/mL

• 6 g/mL

How can an object float on water?

• If it is more dense than water

• If it is less dense than water

• If it has the same density as water