The morpheme tri means three.

1. Page 2-28 The morpheme tri means three. _______________________________________________ cycle _______________ __________________ ceps _______________ __________________ pod _______________ __________________ angle _______________ __________________ athlon _______________ __________________ word definition tricycle A vehicle with three wheels Combine tri with the following morphemes to make new words. Write the definition for each new word. triceps A muscle with three heads tripod A three-footed stand triangle A shape with three angles triathlon A sports event with three parts

2. Page 2-28 2. If centennial is one hundred years, write a word meaning two hundred years.3. What word means “three hundred years”? bicentennial tricentennial 4. Skip the first part of number four. What does trilobite literally mean? three-lobed

3. The morpheme hydro means “water” or “combined with hydrogen.” • What is hydrology? • What job might you have if you are a hydrologist? • What makes a hydroplane • different from a regular airplane? • It can land and take off on water. the study of the movement, distribution, and quality of water throughout the Earth.

4. 4. Write the following words on the correct lines.hydrotherapy hydrophobia hydroelectric • a. A new dam was constructed across the river and a ________________power plant was built with it. • b. Athletes often are given _____________to help injuries heal faster. • c. _____________literally means “the fear of water” but is actually another name for the disease called “rabies.” hydroelectric hydrotherapy hydrophobia

5. 5. Following are three substances that have a scientific name containing the prefix hydro, meaning “combined with hydrogen.” • Circle the symbol for the hydrogen molecule (H) in each chemical formula, then write hydro on each line to tell what substance the formula represents. HCl C2H3O5 CH4 ________chloric acid________cortisone________carbon Hydro Hydro Hydro

6. The morpheme sub means “under” or “below.” 1. Write the new word on each line. (Example: below the surface=subsurface) Below freezing___________________ Below the arctic__________________ Below normal____________________ Below the soil____________________ subfreezing subarctic subnormal subsoil

7. 2. Fill in the following blanks with words from question 1. • This past winter there were a few days of very cold, ___________temperatures. • Before going fishing we checked the _________in our back yard for worms. • The gardeners said that this period of very little rain will lead to _____________rainfall amounts over the summer. subfreezing subsoil subnormal

8. 3. Make up your own sentence using all of the following words, in no particular order: submarine, submerged, and sub oceanic. The suboceanic submarine submerged to one hundred feet.

9. 4. The Himalayan mountain range was formed when the India-Australia tectonic plate subducted, colliding into the Eurasian plate. As the India-Australia plate sank further down into the earth, the Eurasian plate was pushed up, forming the Himalayas. Using the clues from this paragraph, define subduct. To pull or draw downward.

10. The morpheme vore means “to devour or eat.” 1. Write each definition. insectivore____________ carnivore_____________ herbivore_____________ omnivore_____________ piscivore______________ graminivore_____________ frugivore______________ eats insects eats animals eats plants eats all eats fish eats seeds or grain eats fruit

11. 2. Write each word in the blank over its root. Piscivore graminivore frugivore __________ ___________ __________ From L granum, from L. frug, “fruit, from L. piscis, “fish” “grain” to enjoy graminivore frugivore piscivore

12. 3. Match each category to a specific animal by drawing a line. Insectivore Carnivore Herbivore Omnivore Piscivore frugivore

13. The morpheme micro means “very small.” 1. Match each word with its definition by drawing a line. microbiology high-frequency electromagnetic waves microclimate a living thing seen only with a microscope microorganism the study of microscopic forms of life microscope the weather found in a specific small area microwave an instrument used to see very small things