Benchmark Review

Last year during the fall, students raked leaves into a pile.  This year, the students discover that the leaves have undergone which chemical change?

• Rusting

• Decaying

• Burning

• Souring

Tags

NGSS.MS-PS1-2

Which of the following choices describes reversible, physical changes brought about by the addition and then removal of energy?

• An orange juice popsicle melting and then being frozen again.

• An egg fried on the stove and then being cooled in the refrigerator.

• Wood burning in a fireplace and then the ashes being cooled by the air.

• A cake baked in the oven and then being cooled on a table.

Tags

NGSS.MS-PS1-4

Why is it easier to pedal a bicycle downhill?

• because friction is reduced downhill

• because air resistance (drag) is lessened downhill

• because gravity is pulling the bike downhill

• because velocity is decreased as the bike travels downhill

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What are some important ways a compass helps people navigate?

• shows the location of the sun in terms of its shadow

• provides an arrow pointing to magnetic north

• helps determine the distance to unknown points

• tells people the speed and direction of the wind

• guides a person trying to move in a SE (south east) direction

Why do wet clothes hanging on a clothesline outside become dry? 

• Solar energy increases the movement of water molecules, which begins the evaporation process.

• Solar energy causes the water to slow down, which begins the sublimation process.

• Wind energy changes the water molecules' movement, which is known as solidification.

• Wind energy cools the water molecules, which is the condensation process.

   

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

The Moon completes one full____ on its axis for each ____around the Earth. As a result, only one half of the Moon is visible from Earth.

• Year, Revolution

• Rotation, Year

• Rotation, Revolution

• Revolution, Year

Tags

NGSS.MS-ESS1-1

A ramp has one half covered in sandpaper and one half with a smooth surface.  Two identical cubes sit at the bottom of the ramp on each half.

Which statement is TRUE?

• The cube on the sandpaper half will require a greater force to pull it up the ramp.

• The cube on the smooth surface will require a greater force to pull it up the ramp.

• The two cubes will require the same amount of force to pull them up the ramp.

• The cube on the smooth surface has greater mass, thus will require a lesser force to pull it up the ramp. 

Tags

NGSS.MS-PS2-2

Aaron and Jay were working together in a lab where they needed to test several known powders and compare the results to the unknown powders.  During one of the tests, the boys put a white powder in a test tube, added vinegar, and placed a stopper on the top of the test tube.  The powder began to bubble, and the top blew off of the test tube.  The boys were excited about the results of the test.

The result of the test was an example of ___________. 

• a physical change

• condensation

• a chemical change

• boiling point

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If an object traveling south at 10 m/s encounters a gust of wind traveling east at 5 m/s and a second gust traveling west at 3 m/s, the object will be traveling in the [CHOICE 1] direction.

• east

• south

• southeast

• southwest

• west

Tags

NGSS.MS-PS2-2

Sam is using a frying pan to cook on the stove. Because the frying pan will conduct heat energy from the stove, which materials would be best suited for the frying pan's handle?

• plastic

• aluminum

• wood

• copper

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS3-3