Mixing It Up Review

A white substance is mixed into a glass of water. After stirring, the substance no longer shows. What happened to the substance?

• The substance dissolved.

• The substance dissapeared.

• The substance melted.

• The substance evaporated.

Tags

NGSS.MS-PS1-2

Students had a large and small cube of the same material. they placed the small cube in a glass of water and observed it floated. After removing the cube, they placed the larger cube in the water. What did they observe?

• The cube settled in the middle of the glass because of it's mass and density ratio.

• The larger cube sank because it had more mass than the smaller cube.

• The larger cube dissolved into the water because of the flux capacitor.

• The larger cube floated because it has the same density as the smaller cube.

A block of cheddar cheese with a melting point of 70° C and a stick of butter with a melting point of 35° C are on the picnic table. the outside temperature reaches 45°C. What would you observe after an hour outside.

• The cheese would have melted, but the butter would not.

• Nothing would change with the butter and cheese.

• The stick of butter would have melted, but not the cheese.

• Both the butter and cheese would have melted.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When you move the south end of a magnet towards the south end of another magnet, what happens to the other magnet?

• Nothing will happen

• The magnets would connect.

• The second magnet will spin around to show the north end.

• The magnets lose their magnetism.

Tags

NGSS.MS-PS2-5

You have a mixture of identical glass beads, steel beads, and wood beads in a bowl. What is an efficient process in separating the different items.

• First use a magnet to remove the steel beads. Then fill the bowl with water. Then remove the wood beads, leaving the glass beads.

• Use a magnet to remove the glass beads. Then use water to remove the wood beads, leaving the steel beads.

• Hand pick out the glass beads, then the wood beads then the metal beads.

• Hand pick out the steel beads. Then put water in the bowl. Pull out the glass beads.

A steel nail is solid and....

• Not attracted to a magnet and does not conduct electricity.

• Attracted to a magnet and conducts electricity.

• Conducts electricity but is not attracted to a magnet.

• Is attracted to a magnet but does not conduct electricity.

Tags

NGSS.MS-PS2-3

Air is a gas that.......

• Not attracted to a magnet and does not conduct electricity.

• Attracted to a magnet and conducts electricity.

• Conducts electricity but is not attracted to a magnet.

• Is attracted to a magnet but does not conduct electricity.

A deck of playing cards is a solid.......

• Not attracted to a magnet and does not conduct electricity.

• Attracted to a magnet and conducts electricity.

• Conducts electricity but is not attracted to a magnet.

• Is attracted to a magnet but does not conduct electricity.

Water is a liquid and is.......

• Not attracted to a magnet and does not conduct electricity.

• Attracted to a magnet and conducts electricity.

• Conducts electricity but is not attracted to a magnet.

• Is attracted to a magnet but does not conduct electricity.

Paper clips are _________to a magnet because the paper clips are made of___________.

• Not attracted to

  Glass

• Attracted to

  Glass

• Not attracted to

  Steel

• attracted to

  Steel

Tags

NGSS.MS-PS1-1