8th Grade Science MCA PREP

The diagram below shows the path of

a ball bouncing on the ground. Four

locations in the path are identified with

numbers.

At which location does the ball have the

greatest amount of kinetic energy?

• location 1

• location 2

• location 3

• location 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The diagram below shows the path of

a ball bouncing on the ground. Four

locations in the path are identified with

numbers.

At which location does the ball have the

greatest amount of kinetic energy?

• location 1

• location 2

• location 3

• location 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A company is creating an advertisement for its custom-made guitars. Which of the following statements should be in the advertisement to best emphasize the company’s custom production processes?

• Our guitars are made using

  hand tools.

• We make our guitars to your

  specifications.

• We produce and sell thousands of

  guitars each year.

• Our guitars are the best quality your

  money can buy.

A substance with a mass of 10 g is heated to produce two new substances. The mass of the first new substance is 9.3 g and the mass of the second new substance is 0.7 g. Which of the following is best demonstrated by this example?

• heat transfer

• physical change

• law of conservation of mass

• law of conservation of energy

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The map below shows the locations of

two cities. City Y is near the coast, and

city Z is near the middle of a continent.

The cities have the same elevation.

Based on the map, which of the following statements describes how the climates of the two cities are most likely different?

• City Y receives less rain

  than city Z.

• City Y has colder winters

  than city Z.

• City Y has cooler summers

  than city Z

• City Y receives more sunlight

  than city Z.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype’s surface smooth?

• band saw

• chisel

• drill

• sandpaper

The diagrams below represent different ways heat is transferred. The arrows in the diagrams show the direction of heat transfer.

Which table shows the primary way heat is transferred in each diagram?

• 
• 
• 
• 

Many natural rock formations change color over time. In Utah, for example, iron oxidized and formed red, orange, and yellow rock.

Which of the following is the cause of this change?

• chemical weathering

• mechanical weathering

• water erosion

• wind erosion

Tags

NGSS.MS-ESS2-2

NGSS.MS-PS1-2

The picture below shows a television satellite dish

The satellite dish is an example of which of the following components of a television communications system?

• decoder

• encoder

• receiver

• transmitter

Which of the following is a cause of the ocean levels periodically rising and then falling?

• the slight tilt of the Moon

• the force of gravity from the Moon

• the convection within Earth’s mantle

• the revolution of Earth around the Sun

Tags

NGSS.MS-ESS1-1