Mrs. Bryants Released EOG Quiz

Which is the best example of a pure substance?

• peanuts

• milk

• silver

• air

Which statement best explains how periods on the periodic table are organized?

• increasing atomic number from left to right

• increasing number of neutrons from left to right

• decreasing number of electrons from left to right

• decreasing atomic mass number from left to right

In the classroom , we combined baking soda (sodium bicarbonate) and vinegar in an open bag. Which best explains why the total mass of the product weighed less than the total mass of the reactant after the chemical reaction?

• A physical change occurred

• Atoms involved in the reaction lost mass

• Precipitates were created in the new solution.

• Gases were released into the atmosphere

Which would least likely have an impact on global climate changes?

• Producing energy using hydroelectric plants

• producing energy using coal

• producing energy using oil

• producing energy using natural gas

Which is an example of a renewable energy resource?

• hydroelectricity

• coal

• oil

• natural gas

Which will most likely result if there is increased upwelling in a coastal area?

• more aquatic life

• less nutrients in the water

• higher water temperatures

• fewer nitrates

Which best determines the health of a lake used as a source of freshwater?

• its depth and width

• its temperature and pH

• its location and depth

• its temperature and depth

A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones?

• the birds living in the area of the bones

• the weather conditions in the area of the bones

• the kinds of tress living in the area of the bones

• the index fossils in the areas of the bones

Which best describes how ice cores are important to the study of geologic history?

• They show unconformities, which signal changes in deposition

• They hold index fossils, which are used to date the different ice cores

• They contain evidence showing changes in the atmospheric composition over time

• They follow the Law of Superposition, which gives reasons for extinctions of species

Which of these organisms is a producer in a marine ecosystem?

• Fish

• Gull

• Algaie

• Worm