Released Science EOG 8th grade part A

S1 - What is the first thing a student should do if an accident happens during a science experiment?

• report to the teacher

• clean the laboratory station

• locate the nearest exit

• Put on safety goggles

S2 - Which device is used to determine the volume of a liquid?

• anemometer

• graduated cyclinder

• test tube

• thermometer

1 - Which is a compound?

• sodium

• sugar

• nitrogen

• air

Tags

NGSS.MS-PS1-1

Two different liquids are poured together in an open container. Bubbles begin to form. After the bubbling stops, it is determined that the total weight of the two liquids is less than before they were poured together. Which best describes this observation?

• Some of the atoms during the reaction escaped into the air

• Some of the atoms during the reaction became heavier

• Some of the atoms during the reaction were desctroyed

• Some of the atoms during the reaction changed to a different kind of atom.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which best describes a method of obatining energy that may cause changes in water temperature and harm to fish population?

• burninc coal

• using ethanol in cars

• installing solar panels on a home

• generating electricity in a hydroelectric power plant

Tags

NGSS.HS-ESS3-4

Which is a nonrenewable resource?

• oil

• sunlight

• water

• wood

How would a large increase in the salinity of an estuary most likely affect the ecosystem of the estuary?

• all organisms would die

• all organisms would continue to live as they now do

• The number of salt-tolerant organisms would increase, and the number of salt-intolerant organisms would decrease

• The number of salt-intolerant organisms would increase, and the number of salt-tolerant organisms would decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

WHich would indicate the water in a lake is not safe for drinking?

• many varieties of fish in the lake

• high dissolved-oxygen levels in the lake

• cold water temperature of the lake

• high turbidity levels in the lake

A geologist identifies the identical index fossils in rock layers from two different areas. Which conclusion is best supported by this discovery?

• The deposition rate of the two rock layers was identical

• The fossil organisms evolved independently in the two separate areas

• The two rock layers were deposited at approximately the same time

• The index fossil will also occur in sediment deposited on top of these rock layers

Tags

NGSS.MS-ESS1-4

Which supports the theory that same mountains were once at the bottom of an ocean?

• There are underwater mountains on the ocean floor today.

• Freshwater rivers flow to the ocean

• Fossils of marine organisms are found on the tops of some mountains.

• Both mountains and ocean floors have similar minerals in their rocks

Tags

NGSS.MS-ESS2-3