Indicators

Indicators changes _______________  when mixed with acids and bases.

• shape

• colour

• state 

Tags

NGSS.MS-PS1-2

Red litmus paper will change to ___________ in a base.

• blue

• green

• black

• red

Blue litmus paper will change to ___________ in a acid.

• blue

• green

• black

• red

Red cabbage indicators will turn ___________ when mixed with an asid.

• blue

• green

• yellow

• red

Red cabbage indicators will turn ___________ when mixed with an base.

• purple

• black

• yellow

• red

Tags

NGSS.MS-PS1-2

Which Ph Scale number shows an acid?

• 14

• 11

• 7

• 4

Which Ph Scale number shows an base?

• 1

• 3

• 7

• 10

On the pH scale the number 7 indicates the substance is?

• acidic

• neutral

• alkaline