| A | B |
|---|
| Opaque | Allowing no light pass through it |
| transparent | clear; letting light pass through it |
| tanslucent | letting light pass through is, but not clear enough (scaters light) |
| How does light travel | in a straight line |
| What is a Prism | A transparent object that seperates the colers in white light by bending them at different angles |
| What makes white light | all the colers together |
| What makes an object black | all the absence of the colors |
| Reflection | the bouncing back of light |
| Refraction | the bending of light rays as it enters a new material |
| Who invented the electric light bulb | Thomas Edison |
| luminous | something able to produce it's own light |
| reflector | something that bounces back |
| the colors in the spectrum in order | Red, Orange, Yellow, Green, Blue, Indigo, Violet |
| Concave mirror | a mirror that ulges away from the viewer Bigger |
| Convex Mirror | a mirror that bulges towards the viewer (smaller) |
| Monocular Vision | the seeing of more than one image by each eye seperatly; seeing more than 1 image at a time |
| Binocular Vision | the working of both eyes to make an 1 image |
| Magma | has not already been erupted |
| Lava | has already been erupted |
| What material is used in pencils | Graphite |
| cornea | the transparent, outer layer at the fron of the eyeball |
| retina | the lining at the eyeball that is sensitive tok light |
| lens | the two-sided piece of transparen material with one or both sides curved |
| iris | the covered part of the eye that surounds the pupil and regulateds it's size |
| optic nerve | a bundle of nerves which connect the retina ao the eye with the brain |
| pupil | the opening in the iris through which light enters the eye |
| tapetum | an extra layer of cells behind the retina of many noctural animals |
| What is a geologist | a scientist who studies the surface of the earth |
| The hardest substance to man | diamond |
| best conductor of electricity | silver |
| geyser | a spring from which columns of boiling water and steam erupt into the air at intervals |
| paleontologist | a scientist who studies fossils |
| chemical weathering | the changing in the makeup of rock by acid |
| physical weathering | the breaking of rock by physical forces such as seeds, temperature, water, or wind |
| spelunker | someone who enjoys exploring caves as a hobby |
| Three categories of rock | igneous, sedimentary, metamorphic |
| metamorphic rock | marble, slate |
| sedimentary rock | sandstone, shale |
| igneous rock | pumice, obsidian |
| Four kinds of fossils | print, mold, cast, petrified fossils |
| 3 Steps of precipitation | evaporation, condensation, precipitation |
| neap tide | a tide in which there is much less of a difference between high and low tides |
| spring tide | the highest high tide and the lowest low tide |
| molecule | the smallest part of a substance that still has all the qualities of that substance |
| univalve | mollusks with single shells |
| bivalve | have two matching shells joined by hinges |
| intertidal zone | various regions between the low and high tide lines |
| aquifers | underground places where water collects |
| 4 intertidal zones | high intertidal zone, low intertidal zone, medium intertidal zone |
| What are coral reefs made of? | coral polyps |
| a fish that looks like a snake | spotted moray eel |
| fish whose teeth are fused together | parrot fish |
| cleaner mimic | blemies |
| fish that eats parasites on other fish | wrasses |
| most poisonous fish | stone fish |
| How much of the earth's surface does the ocean cover? | 3/4 |
| starfish | have 5 or more rays |
| albatross | largest of all flying birds |
| sea otter | swim on their backs, dark fur |
| walrus | have tusks |
| emperor penguin | tallest penguin |
| shrimp | a scavenger crustacean that people eat |
| lobster | have 8 legs |
| oyster | bivalves that produce pearls |
| crab | flat bodies, 8 legs, 2 pincer |
| warm blooded animals | keep constant body temperature |
| cold blooded animals | body temperature varies with its surroundings |
| pinniped | "wing-footed" animals |
| Great Barrier Reef | coast of Australia |
| What must all living things contain in their body tissues? | water |
