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

“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)

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

“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.

“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.

“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.

“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?

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?

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

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

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

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.

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

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

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.

“contra” means against Controversy Contrast

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?

“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.

“thermo” means heat Thermostat Thermos

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

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

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

“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

“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.

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?