________ taste bitter.

• Acids

• Bases

These feel sticky and taste sour.

• acids
• bases

Lemon juice is an example of a ___ .

• acid
• base

Soap is an example of a ___ .

• acid
• base

On the pH scale, acids are ___ ___ 7, while bases are ___ ___ 7.

• greater than / less than
• less than / greater than

On the pH scale the number 7 is ___ .

• acidic
• neutral
• basic

On the pH scale, a really strong acid has a  ___ number, and a really strong base has a  ___ number.

• high / low
• low / high

When you combine an acid with a base it produces ___.

• a huge explosion
• a very dangerous gas
• a salt and water

Tags

NGSS.MS-PS1-2