EOG Review #2 Question Preview (ID: 59525)


EOG Review #2 2022 Science 8th Grade. TEACHERS: click here for quick copy question ID numbers.

Dissolved Oxygen
a) The oxygen in water that aquatic animals breathe in to get their heart beating
b) The primary federal law in the United States governing water pollution
c) Environmental Protection Agency
d) The land that water flows across or under on its way to a river

If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products?
a) 6 atoms of carbon (C)
b) 12 atoms of carbon (C)
c) 3 atoms of carbon (C)
d) 1 atoms of carbon (C)

Why would a whale fossil be found in a desert?
a) The whale walked on land and later died in the desert.
b) Humans moved the whale fossil to the desert for display.
c) The area was once covered by an ocean.
d) Predator animals dragged the whale from the water into the desert.

Where do you find the amount of electrons in an element?
a) Element Name
b) Atomic Number
c) Atomic Weight
d) Symbol

Group 18
a) contains nonmetals; 7 VALENCE ELECTRONS; very reactive; poor conductors of electric current; VERY REACTIVE with Group 1
b) RIGHT OF STAIRCASE, not malleable/ductile, not shiny, poor conductors
c) Noble Gases are NONREACTIVE b/c the outer energy level is full; gases at room temperature
d) Noble Gases are NONREACTIVE b/c the outer energy level is full; gases at room temperature

Mass Number
a) the sum of the numbers of protons and neutrons in the nucleus of an atom
b) RIGHT OF STAIRCASE, not malleable/ductile, not shiny, poor conductors
c) the number of protons in the nucleus of an atom, how the periodic table is organized
d) 6 VALENCE ELECTRONS, contains three nonmetals; one metalloid; one metal; reactive; all but oxygen are solid at room temp

Metals
a) the sum of the numbers of protons and neutrons in the nucleus of an atom
b) 4 VALENCE ELECTRONS; solids at room temperature
c) LEFT OF STAIRCASE, shiny, malleable, ductile, good conductors of electric current, good conductors of thermal energy
d) Groups 3-12, 1-2 electrons in the outer energy level, less reactive than alkali-earth metals, shiny, good conductor of therma

Group/Family
a) contains nonmetals; 7 VALENCE ELECTRONS; very reactive; poor conductors of electric current; VERY REACTIVE with Group 1
b) VERTICAL column of elements (up and down), determine an element's reactivity, and have the same number of VALENCE electrons
c) the number of protons in the nucleus of an atom, how the periodic table is organized
d) semiconductors, BORDER THE STAIRCASE, shiny, brittle, hard, at high temp- good conductors of electric current

Metalloid
a) 2 VALENCE ELECTRONS; Alkaline metals
b) VERTICAL column of elements (up and down), determine an element's reactivity, and have the same number of VALENCE electrons
c) the number of protons in the nucleus of an atom, how the periodic table is organized
d) semiconductors, BORDER THE STAIRCASE, shiny, brittle, hard, at high temp- good conductors of electric current

NonMetals
a) are malleable and ductile
b) poor conductors of heat and electricity
c) are brittle-- they break easily
d) have high melting points

Nucleus
a) A place where plants and/or animals naturally live and grow
b) toxic chemical that causes a physical or chemical change in the DNA of an organism
c) how things change over time
d) controls all activities of a cell, contains DNA (brain of the cell)

Index Fossils
a) gap in rock layer that is due to erosion or periods without any deposition
b) lived for a short period of time over a wide area
c) anything that has mass and takes up space
d) family of elements that have similar properties (column - up and down)

All matter is made of _______, which may combine to form _______.
a) elements; atoms
b) atoms; molecules
c) compounds; molecules
d) molecules; elements

A mouse eats seeds and insects. Which best describes the role of the mouse?
a) consumer
b) decomposer
c) producer
d) herbivore

Plankton
a) The process by which plants use light energy from the sun to change carbon dioxide and water into sugar and oxygen.
b) Children or young of a person, animal, or plant
c) Microscopic organisms that live in aquatic environments.
d) system that supports and protects the body

nonrenewable energy
a) molten rock rises into open space in sedimentary rock layers and cools
b) sunlight, living organisms, water
c) resource that is used faster than it can be replaced
d) Non reactive elements found on the far left of the periodic table, containing a full outer shell of electrons

Hydrothermal Vents
a) Vents that provide energy source for life in the deep ocean
b) forms when sediment is laid down in layers and the compacts and cements together
c) differences that exist naturally among a species, ex: humans have different eye colors
d) areas of land that drain into smaller rivers, lakes or streams that lead to a river within a river basin

Law of Superposition
a) continuous movement of Earth's water between Earth's surface and it's atmosphere
b) states that the oldest sedimentary rock layers will always be on the bottom unless they have been disturbed by geologic force
c) water runs downhill to the lowest elevation and collects in a body of water
d) fossil fuels - coal, oil, natural gas, nuclear power

Tundra
a) Driest biome- least amount of rain.
b) A tube in the throat in which carries air to the lungs (windpipe)
c) Get messages to other parts of the body
d) An extremely cold, dry biome climate region characterized by short, cool summers and bitterly cold winters.

Abiotic
a) living
b) nonliving
c) toxic waste
d) Digests food completely, turns most of the nutrients into blood

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