6th Grade NC Released Science

Front

How does the density of a 4g sample compare to that of a 12g sample?

Back

The densities are the same.

Front

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

Back

plastic, because heat is unable to flow easily

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?

Back

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

Front

How does gravity support life on Earth? Options: by forcing Earth to continuously spin on its axis, which contributes to day  and night , by causing changes in the distance between Earth and the sun, which  contributes to the seasons , by keeping water and gases in the atmosphere close to Earth’s surface,  which contributes to life processes , by preventing meteors and comets from hitting Earth’s surface, which  protects living organisms from space fragments 

Back

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

Front

Which best summarizes the composition of the surface of Earth?

Back

Earth’s surface contains more water than land.

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 plates? Options: They move several miles each year because of convection within Earth., They move several centimeters each year because of convection within 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 move several centimeters each year because of convection within Earth.

Front

How do the wave characteristics compare for sound waves, P-waves, and light waves?

Back

Sound waves and P-waves are longitudinal waves, while light waves are transverse waves.

Front

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

Back

Weathered parent rock is the largest component of soil.