8th Grade Science Review

Which statement best describes the motion of the object plotted in the graph?

• The object accelerated because the distance traveled increased at a steady rate.

• The object traveled at a constant speed because of forces acting on the object.

• The object accelerated because it traveled in the same direction throughout the investigation.

• The object slowed down as it traveled uphill because of the forces acting on the object.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-2

Which two pieces of data from the lab notebook show that matter is conserved in this investigation?

• Mass before is 471 g and mass after is 471 g

• Temperature before is 21.4 C and temperature after is 19.8 C

• Clear blue/light blue liquids before and blue liquid/dark blue solid precipitate after

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A stream that runs into a lake cuts across a crop field. A new fertilizer is used in the field that has increased the nitrogen and phosphorus concentrations of the soil.

How will these increased nitrogen and phosphorus concentrations affect the ecosystem of the lake?

• increase shorbird nesting

• increase in algae population

• increase in fish population

• increase in oxygen concentration

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

The Punnett square will be used to display the results of a genetic cross between a heterozygous male and a homozygous recessive female. Complete the Punnett square.

• 
• 
• 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The picture shows a Dalmation dog. Which traits are inherited traits?

• Fur pattern

• Eye color

• Catching a ball

• Floppy ears

• Favorite treat

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Identify the parts of the food chain that will most likely be negatively affected if insecticides are applied to producers? Select all your answers.

• Sun

• Grass

• Grasshopper

• Shrew

• Owl

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

A model of Earth, the Mon, and Sun is shown.

Which movement of the model displays an event that takes about 28 days?

• Earth rotates once on its axis.

• The Moon revolves once around the Sun.

• The Sun rotates once on its axis.

• The Moon revolves once around Earth.

Tags

NGSS.MS-ESS1-1

Suppose a new type of plant is discovered with the following characteristics:

-Rapid reproduction

-Offspring genetically identical to parent

-New plant grows from root of existing plant

How does this type of plany most likely reproduce?

• asexual reproduction

• sexual reproduction

Tags

NGSS.MS-LS3-2

The picture shows students eating a picnic lunch. Choose all of the items that show a chemical change.

• ice melting in glass

• apple slices turning brown

• condensation on glass

• digesting food

Tags

NGSS.MS-PS1-2

Which of these is most likely part of an action plan for people who have been warned of a heat advisory?

• lie down on the ground in a ditch or other low area

• stay in an interior room of a well-constructed building

• seek high ground away from rivers and streams

• drink plenty of fluids and wear light-colored clothing