1. Gavilan Peak 7th and 8th Grade
Stems List #5

2. “vita” mean life Vital Signs
Why do you think the maker of this product gave it this name?
Vitalize (to make more lively or vigorous)

3. “demo” means people Demographics
Democracy (a government by the people)

4. “stereo” means solid ster·e·o/ˈsterē-ō/ Noun:
Sound that is directed through two or more speakers so that it seems to surround the listener and to come from more than one source.

5. “ism” means doctrine (Doctrine is a set of beliefs or teaching)
Capitalism is an economic system with a specific set of beliefs for what creates wealth.
Pluralism is when 2 (or more) groups of people coexist, while holding true to their own cultural beliefs.

6. “cogn” means know Recognize- knowledge of someone appearance.
Incognito-to conceal your
identity so no one knows
who you are.
Cognizant-to have knowledge of something.

7. “sur” means over A student who Surpasses all other Students would
Get a Straight A report
Card.
Discount stores often
sell products at a lower
price because the have
a surplus of that item.
If your luggage
is too heavy, airlines
Will impose a surcharge.
What does that mean?
What do you think surmount means?

8. If something doesn’t fit, you take it to alteration shop.
“alter” means other
Alter ego
If something doesn’t fit, you take it to alteration shop.
What does alternative mean?

9. “astr” and “stell” means star (2 Stems on this slide)
A constellation is a
group of stars.
Asteroid
Astrology
Astronomy

10. “dyna” means power Dynasty – a family that is in power.
Dynamometer- Used to measure the magnifying power of a telescope.

11. Chronometer is an instrument that
“chron” means time
These books are
in chronological
order.
Synchronized divers
Chronometer is an instrument that
measures time.

12. it means to hyper extend
“hyper” means over
This kid Is
Hyperactive.
What do you suppose
it means to hyper extend
your arm?
If someone is hyperventilating they are
told to breath into a paper bag to slow their
breathing.

13. “luna” means moon
If something is lunate, it is crescent shaped.

14. “octa” means eight
An octarchy is a government made up of 8 people.

15. This gyrocompass is used to measure the turn of a plane.
“gyro” means turn
Gyroscope
The arms and legs on this
action figure move or gyrate.
This gyrocompass is used to measure the turn of a plane.

16. “contra” means against
Controversy Contrast

17. What kinds of questions
“geo” means earth
Geothermal is the
temperature
inside the Earth.
Every year we have a
Geography Bee.
What kinds of questions
do we ask?

18. “helio” means sun Helios is the god of the sun
Heliotropic is when a plant
Grows toward the sun.
Heliographs were used to photograph
the sun.

19. “thermo” means heat
Thermostat
Thermos

20. “tetra” means four
Tetragon- a four sided polygon Tetroxide- an oxide whose molecule contains four atoms of oxygen

21. “meter” means measure Hydro means ? Meter means measure
So a Hydrometer =
thermometer

22. “scope” means look Telescope Microscope
Periscope using mirrors to see things.
Radarscope

23. “son” means sound Sonnet- a 14-line poem
Resonant- a deep and clear sound that continues
Sonar- an way to measure sound under water.
Reflective wave
Original wave

24. “dec” means ten Decade is ten years
Decathlon is an athletic event that contains 10 track and field activities.
Decagon is a shape with ten sided.
A base ten system.

25. Can you think of someone
“amat” means love
Amiable- have pleasant or friendly qualities
Amateur- having a love for something without
any formal training. ( usually used negatively)
Can you think of someone
who normally has an
amiable personality?