Grade 6 Released Questions NC Final Exam 5/26/18

How does sound usually travel? A- An object vibrates, and those vibrations travel through the air in one direction as transverse waves B- An object vibrates, and those vibrations carry air in one direction as longitudinal waves C- An object vibrates, and those vibrations carry air in all directions as transverse wave D- An object vibrates, and those vibrations travel through the air in all directions as longitudinal waves

D

The diagram below shows the composition of the surface of Earth. ___________________________________________ | | | | | | | LAND | | |_____________________| | | | | WATER | |_________________________________________| Which best summarizes the composition of the surface of Earth? A- Three-fourths of Earth's surface is land B- One-fourth of Earth's surface is water C- Earth's surface contains more land than water D- Earth's surface contains more water than land

D

Tulips are flowers that typically bloom in the spring. How could tulips be forced to bloom in winter? A- By limiting pruning and trimming of the tulips B- By reducing water levels and nutrient uptake by the tulips C- By elevating oxygen levels and supplying organic matter to the tulips D- By increasing temperature and lengthening daylight for the tulips

D

What would happen to a plant if it were turned away from its light source? A- The plant would stop growing B- The plant would be unaffected C- The plant would move away from the light source D- The plant would bend towards the light source

D

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

D

This chart compares three different types of waves. ~Waves/Occurrence/Wave characteristics ________________________________________________________________________ ~P-wave/Earthquake/compressions and rarefactions ~Sound/Vibrating object/compressions and rarefactions ~Light/Vibrating charges/crests and troughs How do the wave characteristics compare for these waves? A- Sound waves and P-waves are longitudinal waves, while light waves are transverse waves. B- Light waves and P-waves are transverse waves, while sound waves are longitudinal waves. C- Sound waves, P-waves, and light waves are all longitudinal waves. D- Light waves, P-waves, and sound waves are all transverse waves.

A

Which is the basic composition of Earth's core? A- The solid inner core is surrounded by a liquid outer core B- The liquid inner core is surrounded by a solid outer core C- Both the inner core and the outer core are solid D- Both the inner core and the outer core are liquid

A

This chart gives the physical properties of copper. Element------------------ Copper Density------------------- 8.96 g/cm^3 Melting point------------ 1,084 degrees C. Boiling point------------- 2,560 degrees C. How does the density of a 4-g sample of copper compare to that of a 12-g sample of copper? A- Its density is one-half the density of the 12-g sample B- Its density is the same density as the 12-g sample C- Its density is twice the density of the 12-g sample D- Its density is three times the density of the 12-g sample

B

Which best explains the movement of tectonic plates? A- They move several miles each year because of convection within Earth B- They move several centimeters each year because of convection within Earth C- They move several feet each year because of convection within Earth D- They move several kilometers each year because of convection within Earth

B

Why are there high and low tides on earth? A- They are due to changes in the moon's tilt on its axis B- They are due to the gravitational pull between the earth and the moon C- They are due to the magnetic force between Earth and the moon D- They are due to changes in the moon's speed every month

B

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

C

Which best explains the relationship between parent rock and soil composition? A- Weathered parent rock determines the number of organisms found in the soil B- Weathered parent rock determines the amount of air found in the soil C- Weathered parent rock is the largest component of soil D- Weathered parent rock is the smallest component of soil

C

Which is considered a good insulator of heat? A- Aluminum, because it allows heat to flow easily B- Glass, because it allows heat to flow easily C- Plastic, because heat is unable to flow easily through it D- Silver, because heat is unable to flow easily through it

C

Which is true for every atom of an element? A- It can be seen with a magnifying glass B- It can be joined together with another atom C- It has mass and volume D- It is weightless

C