8th Grade Science EOG Questions #1: Question Preview (ID: 6373)

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Where is most freshwater located on Earth?
a) Polar Ice Caps
b) Rivers
c) Lakes
d) Groundwater

Which describes the hydrosphere?
a) Most of it contains salt.
b) It is formed by a climate change.
c) All of it is located above ground.
d) It is made of only freshwater.

Which condition in the ocean is most responsible for an increase in the fish population near the surface?
a) buoyancy
b) upwelling
c) salinity
d) density

Which pair of organisms represents a connection between aquatic and terrestrial food webs?
a) whales and plankton
b) humans and coral
c) spiders and mosquitoes
d) seagulls and oysters

Which tool is used to determine precipitation amounts?
a) balance scale
b) thermometer
c) rain gauge
d) hygrometer

Which is evidence that elements can combine to form new compounds?
a) melting a solid
b) pouring two liquids together to make a solid
c) moving a piece of metal with a magnet
d) freezing a liquid

Which property of metals allows them to be used to make coins that have the same thickness?
a) electrical conductivity
b) specific heat
c) malleability
d) density

Which best describes why metals are used for making pots and pans that are used for cooking?
a) Metals have low specific heats and high melting points.
b) Metals have high specific heats and high melting points.
c) Metals have low specific heats and low melting points.
d) Metals have high specific heats and low melting points.

Which best describes the physical change of an aluminum soda can after it is crushed?
a) There is a change in the mass of the can.
b) There is a change in the specific heat of the can.
c) There is a change in the volume of the can.
d) There is a change in the weight of the can.

A chemical reaction produces two new substances, and each product has a mass of 25 grams. What was the total mass of the reactants?
a) 25 grams
b) 100 grams
c) 75 grams
d) 50 grams

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