Therm 1
Double the Consonant
Y to I
Drop the Silent E
Therm 2
100

Related to heat or temperature

Thermal

100

Add –ed to tap.

TAPPED

100

Add –er to dry.

DRIED

100

Add –ed to bake. Spell the new word.

BAKED

100

An instrument that measures temperature or heat

Thermometer

200

A device used to control the temperature

Thermostat

200

Add -ing to jog.

JOGGING

200

Add –ed to cry.

CRIED

200

Add –ing to drive. Spell the new word.

DRIVING

200

A container that is used to keep things warm, such as your soup; a double-walled container that keeps things warm

Thermos

300

Heated from within the body

Endothermic

300

Add -ed to rub.

RUBBED

300

Add –ness to fussy.

FUSSINESS

300

Add –ing to shine. Spell the new word.

shining

300

Requires heat to be absorbed from outside of the body

Exothermic

400

A device that automatically writes down (records) changes in temperature

Thermograph

400

Add -ing to slip.

SLIPPING

400

Add –est to lazy.

LAZIEST

400

Add –able to move. Spell the new word.

MOVABLE

400

A unit of heat equal to 1,000 great calories

Therm

500

Caused or operated by heat that has changed into different forms of energy

Thermodynamic

500

Add -ed to beg.

BEGGED

500

Add –er to pretty.

PRETTIER

500

Add –ing to taste. Spell the new word.

TASTING

500

An organism that has adapted to living in very high temperatures (heat), such as bacteria or algae

Thermophile