-geo-, -therm-, -scope-, -meter-

Question 1

an instrument that measures atmospheric pressure

Answer 1

barometer

Question 2

the distance across a circle through its center

Answer 2

diameter

Question 3

study of the Earth’s surface

Answer 3

geography

Question 4

the study of the Earth, specifically rocks and the planet’s crust

Answer 4

geology

Question 5

a scientist who studies the forces that make and shape the planet Earth.

Answer 5

geologist

Question 6

of, relating to, or produced by the heat of the Earth

Answer 6

geothermal

Question 7

a prediction of someone’s future

Answer 7

horoscope

Question 8

an instrument for viewing objects arranged in changing but symmetrical patterns

Answer 8

kaleidoscope

Question 9

basic unit of measuring length in the metric system

Answer 9

meter

Question 10

device that produces magnified images of structures that are too small to see with the unaided eye

Answer 10

microscope

Question 11

a hollow stone found on the Earth that is lined on the inside with crystals

Answer 11

geode

Question 12

the distance around a polygon

Answer 12

perimeter

Question 13

an instrument for seeing around things

Answer 13

periscope

Question 14

an instrument for measuring speed

Answer 14

speedometer

Question 15

an instrument built to observe distant objects by making them appear closer

Answer 15

telescope

Question 16

related to heat or temperature

Answer 16

thermal

Question 17

physics dealing with the relations of the power of heat

Answer 17

thermodynamic

Question 18

an instrument used to measure temperature

Answer 18

themometer

Question 19

a container that keeps liquids hot or cold for long periods of time

Answer 19

thermos

Question 20

a device used to control the temperature

Answer 20

thermostat