8th Grade Interim Review

If a landslide in the Mississippi Canyon were to occur, which tsunami detection sensor location would likely provide the earliest warning of a tsunami for point X.

• Sensor P

• Sensor Q

• Sensor R

• Sensor S

Students conducted an experiment in which sugar was added to separate beakers of water and sulfuric a. Once the sugar was added, the students recorded their observations:

Beaker #1 (sugar and water): no color change, no solid forms, solid sugar dissolves, no bubbles

Beaker #2 (sugar and sulfuric acid): color change, solid forms, bubbles form, gas given off

• Beaker #1

  
  

• Beaker #2

  
  

• both Beaker #1 and Beaker #2

  
  

• neither Beaker #1 and Beaker #2

  
  

The diagram shows different steps in the water cycle.

​

Which of the steps shown in the water cycle diagram mainly occur due to the force of gravity?

• 
  

  1. surface flow

• condensation

• precipitation

• infiltration

• plant uptake

The characteristics of an organism that can be inherited, or acquired, or inherited and affected by the environment (acquired) is called

• Trait

• Genotype

• Allele

• Genes

The process of mineral and gem formation, shown in Figure 1, can help explain how opal is distributed. When sandstone is weathered, it releases grains of sand. Water can then move the sand and other minerals into the cracks formed in other types of rock along the way. When the water evaporates, sand and other materials are left behind. This mixture of sand and other minerals hardens over time, eventually forming opal. The locations of mineral and gem formation depend on different Earth processes. Some gems need heat, extreme pressure, or even a certain type of rock layer to form. Which location in the figure shows where opal is most likely to form?  

• Location 1

• Location 2

• Location 3

• Location 4

The red car and blue car are traveling toward an intersection.  They have the same mass and speed.  

The red car and the blue car collide in the center of the intersection with the front right bumper of the red car hitting the front left bumper of the blue car. They move together before coming to a stop.  

Which statement best describes how the motion of the red car would change if the two cars collide with equal force?

• 1. The laws of motion show that after the collision, the red car would continue toward point D.

• 1. The laws of motion show that the cars would collide, creating an opposite reaction, moving the red car toward point A.

• 1. The laws of motion show that the collision would create an equal reaction between both cars, moving them both toward point C.

• 1. The laws of motion show that velocity of the red car would change differently than that of the blue car because of its mass, moving the red car toward point B.

If a living thing can reproduce, it is referred to as being

• Abiotic

• Biotic

• Hereditary

• Fertile

A person, child or the next generation is referred to as the

• Inherited traits

• Phenotype

• Variation

• Offspring

Traits passed down from parent to offspring or traits you are born with are called

• Inherited traits

• Phenotype

• Variation

• Offspring

Carlos claims that air is made up of many tiny particles that have mass but are too small to see.

​

Which observations can be used as evidence to support his claim?

​

Select the two correct answers.

• rain falling from the clouds

• leaves moving on a windy day

• blowing into a balloon to inflate it

• 1. temperatures rising on a sunny day

• tossing a basketball through the air