Used To and Used For

Piano is (a)   play music.

A sundial (a)   used for telling the time in the past.

A swimming pool is (a)   swimming.

Umbrella is (a)   protect you from the rain and the sun.

These water bottles (a)   used to drink.

Kindle is (a)   read books.

This old phone (a)   used to call others in the past.

A sharpener is (a)   sharpen our pencils.

A charger is (a)   charging our phones.

A thermometer is (a)   measure our body temperature.