5 Written Questions

1. an organ that produces and releases one or more substances for use in the body
2. process by which plants use sunlight, carbon dioxide, and water to make food; also produces a large part of the oxygen in the atmosphere
3. volcanic glass that is formed by rapid cooling of lava and usually black in color; used by early civilizations to make tools and special objects
4. descriptive name for the moon when it is between a full moon and a half moon (more than half of the moon's surface is visible)
5. something that contaminates our environment; can even be clean water that is too warm if it is drained into cool water and changes the habitat of animals there

5 Matching Questions

1. herbivores
2. cuticle
3. carrying capacity
4. photovoltaic
5. ocean pollution

1. a major causes include: 1) toxic (poisonous) trash and chemicals that get into our food chain, 2) oil, primarily occurring as runoff from the land, and 3) dangerous debris like plastics that can entangle animals and harm marine life when eaten
2. b an animal which feeds only on grass and other plants
3. c maximum population that the environment can support without negative effects
4. d the waxy, protective layer which covers the stem, leaves, and flowers of many plants and helps provent water loss
5. e a photoelectric cell that detects and measure light intensity

5 Multiple Choice Questions

1. a mass of partially digested food and gastric secretions passed from the stomach to the small intestine
   1. ion
   2. volume
   3. polymer
   4. chyme
2. monthly cycle of female hormonal changes from the beginning of one menstrual period to the beginning of the next
   1. metric
   2. menstrual cycle
   3. nitrogen cycle
   4. neutral
3. flat. low-lying land next to a sea coast
   1. coastal plain
   2. acid rain
   3. focal point
   4. metallic
4. a chemically non-reactive gas
   1. polymer
   2. clevage
   3. social
   4. noble gas
5. a class of organic chemical compounds that contains one or more rings of carbon atoms
   1. biomass
   2. aromatic
   3. retina
   4. aorta

5 True/False Questions

1. respiration → process by which energy is released by food

   True        False

2. resonator → a light-sensitive membrane in the back of the eye which receives an image from the lens and sends it to the brain

   True        False

3. kilowatt → a unit of electricity equal to 1,000 watts

   True        False

4. control → not changing or varying

   True        False

5. mineral properties → luster, streak, hardness, and fracture

   True        False