NCFE 6th Grade Science REVIEW

Front

Which best summarizes the composition of the surface of Earth?

Back

Earth's surface contains more water than land.

Front

Which is considered a good insulator of heat? Options: aluminum, glass, plastic, silver.

Back

plastic, because heat is unable to flow easily through it

Front

Why are there high and low tides on earth?

Back

They are due to the gravitational pull between Earth and the moon.

Front

Which contributes to earth's ability to sustain life? Options: The atmosphere allows all of the sun's radiation to enter due to Earth's distance from the sun., The atmosphere prevents all space debris from reaching the surface due to the ozone layer, The atmosphere is extremely thin due to the temperatures of the sun., The atmosphere is breathable due to the unique mixture of gases.

Back

The atmosphere is breathable due to the unique mixture of gases.

Front

How does gravity support life on Earth?

Back

by keeping water and gases in the atmosphere close to Earth's surface, which contributes to life processes

Front

Which is the basic composition of Earth's core?

Back

The solid inner core is surrounded by a liquid outer core.

Front

Which best explains the movement of tectonic plate? Options: They move several miles each year because of convection within Earth., They moved several centimeters each year because of convection with in Earth., They move several feet each year because of convection within Earth., They move several kilometers each year because of convection within Earth.

Back

They moved several centimeters each year because of convection with in Earth.

Front

Which best explains the relationship between parent rock and soil composition?

Back

Weathered parent rock is the largest component of soil.

Front

How could tulips be forced to bloom in winter?

Back

by increasing temperature and lengthening daylight for the tulips.

Front

How does sound usually travel?

Back

An object vibrates, and those vibrations travel through the air in all directions as longitudinal waves.