Who were the group of people who experimented with different substances?

• Kings

• Alchemists

• Scientists

• Gargoyles

Tags

NGSS.HS-PS1-3

What kind of substance were the alchemists trying to make?

• Turn a sword into copper

• Make a person invisible

• Make people turn into cats

• Turn ordinary metals into gold

What causes shiny pennies to become dull?

• They get dirt on them from being dropped on the ground.

• They are exposed to air over time.

• There is always dull metal inside pennies.

Tags

NGSS.MS-PS1-2

Which of the following solutions caused a dull penny to become shiny again?

• Salt water

• Soapy water

• Vinegar

• Salt water & vinegar

Tags

NGSS.MS-PS1-2

If the vinegar and salt removed the dull copper from the pennies, how should the weight of the pennies change after being in the solution?

• They should weigh more.

• They should weigh less.

• They should weigh the same amount.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How did the salt and vinegar solution make a dull penny shiny again?

• It removed the dull outer layer.

• It added a shiny layer on top of the dull layer.

• Nothing was added or removed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happened when a steel nail was placed in the solution with the pennies?

• The nail became shiny.

• The nail started to dissolve.

• The nail was covered with a layer of copper.

• The nail exploded.

Tags

NGSS.MS-PS1-2

The king's sword turned to copper because the alchemist put the sword in a salt and vinegar solution with the pennies.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happened when an aluminum can was placed in vinegar for a long period of time?

• The can exploded.

• The can got larger in size.

• The can slowly dissolved.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Vinegar is left when fruits and vegetables rot.

• True

• False

Tags

NGSS.MS-LS2-3