STAAR FORMATIVE Science 8th Grad

1

Which element has 12 protons?

1

The image shows a roller coaster cart moving along a track. 📷
Which statement best describes the kinetic and potential energies of the cart at Location X compared with the kinetic and potential energies of the cart at Location Y?

1

The diagram shows different types of tectonic plate boundaries.

Which table accurately shows the surface features associated with each tectonic plate boundary?

1

A graph of an object’s motion during a 5-second time interval is shown.

Which statement correctly compares the object’s motion during the first 3 seconds and the last 2 seconds?

1

The chemical formula for methane is
CH4
Which statement would describe the number of atoms present if there were 4 molecules of this compound? HINT: Use a COEFFICIENT in front of compound.

1

What are the charge and location of each subatomic particle of an atom? Protons:__________
Neutrons: __________
Electrons: __________

1

Matter can undergo physical or chemical changes. Which of these are examples of physical changes?
Select two correct answers.

1

The table shows the motion data for two objects during two trials of an investigation.
Which object travels at the greater average speed?

1

Carts of different masses are pulled along a flat surface. Which two carts experience the same net force?

1

Which element has 12 protons?

The image shows a roller coaster cart moving along a track. 📷
Which statement best describes the kinetic and potential energies of the cart at Location X compared with the kinetic and potential energies of the cart at Location Y?

Based on the diagram, which hemisphere is experiencing Summer?

An equation for a chemical reaction is shown:
NaOH+HCl→NaCl+H2O
Which statement provides evidence that mass is conserved in this chemical equation/reaction?

Which statement best compares the properties of silicon (Si) and nickel (Ni)?

The diagram shows different types of tectonic plate boundaries.

Which table accurately shows the surface features associated with each tectonic plate boundary?

A graph of an object’s motion during a 5-second time interval is shown.

Which statement correctly compares the object’s motion during the first 3 seconds and the last 2 seconds?

The chemical formula for methane is
CH4
Which statement would describe the number of atoms present if there were 4 molecules of this compound? HINT: Use a COEFFICIENT in front of compound.

A neutral atom has an atomic mass of 16 amu. Which particles make up most of the mass of this atom?

An energy pyramid is shown. 📷 Which statement best describes the flow of energy through this pyramid?

The mass, applied force, and frictional force for four carts are shown:
PART A) Based on the data table, which cart has the lowest acceleration?
PART B) Which best explains the correct answer to Part A?

Which statement best compares the atoms of two elements that have similar chemical properties because they are in the same Group?

A student is pushing two blocks on a smooth, frictionless surface.

What force is required in order to produce an acceleration of 2.5 m/s2 on the two blocks combined mass shown?

This question has two parts. A student lists two land features:
Himalayas (mountain range)
(East African) Great Rift Valley
A) Which statement describes how each land feature most likely formed?
B) Which best explains Part A?
CHOOSE the TWO correct answers.

Ocean water absorbs carbon dioxide from the atmosphere. Carbon dioxide lowers the pH of the ocean water, making acidic which is harmful to organisms living in the ocean.
Which activity is most likely to decrease the amount of carbon dioxide being added to the ocean water?

Which statement correctly describes characteristics of organisms in a particular kingdom?

Which graph represents a baseball player accelerating away from a base located at the origin?

Matter can undergo physical or chemical changes. Which of these are examples of physical changes?
Select two correct answers.

The table shows the motion data for two objects during two trials of an investigation.
Which object travels at the greater average speed?

Carts of different masses are pulled along a flat surface. Which two carts experience the same net force?

Which best describes the cell shown?

Which SAMPLES are metals? CHOOSE 3 CORRECT ANSWERS

Certain species of yeast can reproduce sexually or asexually. Which answer choice best compares the offspring from sexual reproduction to the offspring from asexual reproduction?

A chemical equation for the reaction between calcium hydroxide, Ca(OH)2, and sulfuric acid, H2SO4, is shown.
The Law of Conservation of Mass state the amount of mass in the reactants should equal the amount of mass in the products. How many grams of sulfuric acid, H2SO4 were used in the reaction?

STAAR FORMATIVE Science 8th Grad

Which element has 12 protons?

The image shows a roller coaster cart moving along a track. 📷Which statement best describes the kinetic and potential energies of the cart at Location X compared with the kinetic and potential energies of the cart at Location Y?

Based on the diagram, which hemisphere is experiencing Summer?

An equation for a chemical reaction is shown:NaOH+HCl→NaCl+H2OWhich statement provides evidence that mass is conserved in this chemical equation/reaction?

Which statement best compares the properties of silicon (Si) and nickel (Ni)?

The diagram shows different types of tectonic plate boundaries.Which table accurately shows the surface features associated with each tectonic plate boundary?

A graph of an object’s motion during a 5-second time interval is shown.Which statement correctly compares the object’s motion during the first 3 seconds and the last 2 seconds?

The chemical formula for methane is CH4Which statement would describe the number of atoms present if there were 4 molecules of this compound? HINT: Use a COEFFICIENT in front of compound.

A neutral atom has an atomic mass of 16 amu. Which particles make up most of the mass of this atom?

An energy pyramid is shown. 📷 Which statement best describes the flow of energy through this pyramid?

The mass, applied force, and frictional force for four carts are shown: PART A) Based on the data table, which cart has the lowest acceleration?PART B) Which best explains the correct answer to Part A?

Which statement best compares the atoms of two elements that have similar chemical properties because they are in the same Group?

A student is pushing two blocks on a smooth, frictionless surface.What force is required in order to produce an acceleration of 2.5 m/s2 on the two blocks combined mass shown?

This question has two parts. A student lists two land features:Himalayas (mountain range)(East African) Great Rift ValleyA) Which statement describes how each land feature most likely formed?B) Which best explains Part A?CHOOSE the TWO correct answers.

Ocean water absorbs carbon dioxide from the atmosphere. Carbon dioxide lowers the pH of the ocean water, making acidic which is harmful to organisms living in the ocean.Which activity is most likely to decrease the amount of carbon dioxide being added to the ocean water?

Which statement correctly describes characteristics of organisms in a particular kingdom?

Which graph represents a baseball player accelerating away from a base located at the origin?

Matter can undergo physical or chemical changes. Which of these are examples of physical changes?Select two correct answers.

The table shows the motion data for two objects during two trials of an investigation.Which object travels at the greater average speed?

Carts of different masses are pulled along a flat surface. Which two carts experience the same net force?

Which best describes the cell shown?

Which SAMPLES are metals? CHOOSE 3 CORRECT ANSWERS

Certain species of yeast can reproduce sexually or asexually. Which answer choice best compares the offspring from sexual reproduction to the offspring from asexual reproduction?

A chemical equation for the reaction between calcium hydroxide, Ca(OH)2, and sulfuric acid, H2SO4, is shown. The Law of Conservation of Mass state the amount of mass in the reactants should equal the amount of mass in the products. How many grams of sulfuric acid, H2SO4 were used in the reaction?

The image shows a roller coaster cart moving along a track. 📷
Which statement best describes the kinetic and potential energies of the cart at Location X compared with the kinetic and potential energies of the cart at Location Y?

An equation for a chemical reaction is shown:
NaOH+HCl→NaCl+H2O
Which statement provides evidence that mass is conserved in this chemical equation/reaction?

The diagram shows different types of tectonic plate boundaries.

Which table accurately shows the surface features associated with each tectonic plate boundary?

A graph of an object’s motion during a 5-second time interval is shown.

Which statement correctly compares the object’s motion during the first 3 seconds and the last 2 seconds?

The chemical formula for methane is
CH4
Which statement would describe the number of atoms present if there were 4 molecules of this compound? HINT: Use a COEFFICIENT in front of compound.

The mass, applied force, and frictional force for four carts are shown:
PART A) Based on the data table, which cart has the lowest acceleration?
PART B) Which best explains the correct answer to Part A?

A student is pushing two blocks on a smooth, frictionless surface.

What force is required in order to produce an acceleration of 2.5 m/s2 on the two blocks combined mass shown?

This question has two parts. A student lists two land features:
Himalayas (mountain range)
(East African) Great Rift Valley
A) Which statement describes how each land feature most likely formed?
B) Which best explains Part A?
CHOOSE the TWO correct answers.

Ocean water absorbs carbon dioxide from the atmosphere. Carbon dioxide lowers the pH of the ocean water, making acidic which is harmful to organisms living in the ocean.
Which activity is most likely to decrease the amount of carbon dioxide being added to the ocean water?

Matter can undergo physical or chemical changes. Which of these are examples of physical changes?
Select two correct answers.

The table shows the motion data for two objects during two trials of an investigation.
Which object travels at the greater average speed?

A chemical equation for the reaction between calcium hydroxide, Ca(OH)2, and sulfuric acid, H2SO4, is shown.
The Law of Conservation of Mass state the amount of mass in the reactants should equal the amount of mass in the products. How many grams of sulfuric acid, H2SO4 were used in the reaction?