English Worksheet ( Set 11 )

THERM
THERM means HEAT


Therm is the second root featured on the Resource Room found often in scientific contexts.

I. FOR EACH WORD:

1. Write the word

2. Write what it means

3. Draw a picture to go with it

4. Answer the question about it.



word
meaning and example
what to draw
question to answer

(you may draw your answer, too)

thermometer
thing to measure temperature (amount of heat)
Two different kinds of thermometers
What do you think the "meter" part of "thermometer" might mean?

thermal
having to do with heat or conserving heat ('thermal blanket,' 'thermal underwear')
a "thermal" object
Why is 'thermal underwear' called that?

thermostat
machine that keeps something at the same temperature (or 'heat level'); "stat" means 'same.'
a thermostat (there may be one on the wall where you are).
What would you have to do if you didn't have a thermostat?

geothermal
heat coming from the earth (remember from the 'logy' group that geo means earth); volcanoes and hot springs are examples of geothermal heat sources.
a source of geothermal energy
Where are two places where geothermal energy can be found?

hypothermia
when the body's temperature goes below normal

someone with hypothermia
What are two ways a person could develop hypothermia?
What do you think "hypo" means?

hyperthermia
when the body gets too hot (such as during heat stroke or a high fever)
someone with hyperthermia
What are two ways a person could develop hyperthermia?
What do you think "hyper" means?

thermonuclear
change in an atom's nucleus that requires a very high temperature, such as in a hydrogen bomb or in the sun
a place where thermonuclear action is happening
What would happen if a thermonuclear bomb went off?

Thermos
a container designed to keep heat in or out to keep food at a desired temperature
a Thermos
What are three different foods that would likely be kept in a Thermos?

isothermal
a line on a map showing where the temperature is the same along that line
an isotherm (you might want to look in an encyclopedia)
What kind of job (-ologist) would be interested in isotherms? (See "-logy" words)

endothermic
taking heat into itself (making it get colder because it's taking heat away)
Draw two test tubes with thermometers in them - one before, one after an endothermic reaction
Why is the second test tube colder than the first one?

exothermic
sending heat out (getting hot to the touch) - much more familiar than endothermic reactions - and getting warmer.
Draw two test tubes with thermometers in them -- one before, one after an exothermic reaction
Why is the second test tube warmer than the first one


Complete these sentences with the "therm" word that fits. Be sure to mix these sentences with words learned in previous lessons.

1. Getting wet on a cool day and staying out side can lead to ____hypothermia____

2. You can get a ____thermometer____ that will measure temperature in Fahrenheit or Celsius.

3. I have a ___thermos____ full of coffee, piping hot.

4. A ___thermal____ blanket is designed to add a warm layer for cold weather, but not be too warm in warm weather.

5.The ____thermometer_____ showed that it was 32 degrees in Boston, Massachusetts and 30 miles north of Cleveland, Ohio.

6.A ___thermonuclear____ bomb does more damage than other kinds of bombs, but is very expensive to make.

7. Spending too much time in the hot sun can cause ____hyperthermia____ , which can be fatal.

8. That ____endothermic____ reaction got very, very cold.

9. Setting off a thermonuclear bomb is an example of an ____exothermic____ reaction because it sends out a lot of heat.

10. In Greenland, ____geothermal____ energy from hot springs is used to heat houses.

11. A tree farmer might want to study ____isothermal____

12.. That's an interesting rock! A ___geotherlogist____ could tell you what it is.

13. The ____thermostat____ in my car broke, so it overheated.








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