Choose a claim that best agrees with the data.

Both mass and distance are variables that affect the gravitational force between two objects.

Mass does not affect the gravitational force between two objects

Mass is the only variable that affects the gravitational force between two objects

Distance is the only variable that affects the gravitational force between two objects

This graph shows almond production in the US since 2012. What is true about the graph?

Almond production has increased from 2014-2017

Almond production has decreased from 2014-2017

Almond production has stayed the same from 2014-2017

A student wants to show a friend that a magnetic field exists in the region around a permanent magnet. Which demonstration shows that a field exists?

A magnet is held near a small metal ball, making it roll across the table

A magnet touches a paper clip and picks it up from the table

A student wants to show a friend that a magnetic field exists in the region around a permanent magnet. Which demonstration shows that a field exists?

A small magnet held under a piece of paper with iron filings on top makes the filings move into a pattern that covers the whole piece of paper

The north pole of a magnet sticks to the south pole of the second magnet when they touch

What TWO things are true about PLANTS?

Produce O 2 that is used in cell respiration

Produce CO 2 that is used in photosynthesis

What TWO things are true about ANIMALS?

Produce CO 2 that is used in photosynthesis

Produce O 2 that is used in cell respiration

The student proposes to test the claim in the lab by using metal rods made of Iron, Copper, and Aluminum. In addition to metal rods, which pieces of equipment would be useful for investigating their claim?

hot water, pan to hold water, stopwatch, thermometer

prism, heat lamp, screen, meterstick

beaker, digital scale, stopwatch, clamps

litmus paper, beaker, pan balance, battery

Which statement describes the most likely impact of the mutation in the mutated sequence?

The protein formed will not be the same as that formed from the original DNA

There will be no effect because the rest of the DNA is normal

The extra nucleotide will be deleted before the protein is formed

The mutated DNA will code for the same number of amino acids as the original sequence

Students want to determine what effect the eruption had on global climate. Which question should the students investigate to BEST determine the effect?

Do aerosol particles of this type cause the amount of solar energy that reaches the Earth's surface to increase or decrease?

What was the temperature of the lava that flowed onto Earth's surface when Mount Pinatubo erupted?

Was the amount of rain that fell on Mount Punatubo in the days after the eruption greater or less than average?

According to the graph, what evidence is true about the rate of photosynthesis during a La Nina event?

During a La Nina event, the light intensity is reduced (as more clouds block sunlight), therefore reducing CO 2 uptake and slowing down the rate of photosynthesis.

During a La Nina event, the light intensity is increased, therefore increasing CO 2 uptake and increasing the rate of photosynthesis.

During a La Nina event, the light intensity stays the same, therefore reducing CO 2 uptake and not changing the rate of photosynthesis.

Which evidence could be used to CHALLENGE a biologist's claim that purple flowers attract more pollinators than other flower colors do?

The purple flowers did not have any butterfly or beetle pollinators

Bees pollinated the purple flowers 12 times and white flowers only 1 time

The purple flowers were pollinated 17 times, the white flowers 3 times, and pink flowers 2 times.

Which wave characteristics (if any) does the energy of a wave depend on?

BOTH the amplitude and wavelength

NEITHER the amplitude and wavelength

What statement is most likely correct?

Layer C is below Layer B, so Layer C is older

Layer D is younger than Layer C

What statement is most likely correct?

Layer A is the youngest layer because it is at the top

There is no coral fossil in Layer D, so it went completely extinct

Layer D is younger than Layer C

What statement is most likely correct?

The ammonite fossil is above the crinoid fossil, so the crinoid fossil is older

There is no coral fossil in Layer D, so it went completely extinct

The gastropod fossils are above the crinoid fossil so they for sure evolved from crinoids

Which best explains why the embyos are similar in appearance, yet the adults look different?

Some developmental processes are shared by vertebrates

Pigs and chickens are in the same genus

All vertebrate embryos have the same DNA

As the embryos grow, they undergo mutations

Based on this data, what statement is most likely correct?

The height of the plants is most directly controlled by genetic factors

The height of the plants is most directly controlled by environmental factors

Based on this data, what statement is most likely correct?

Near sea level, the taller plants are better able to survive and reproduce than the shorter plants

At higher elevations, the taller plants are better able to survive and reproduce than the shorter plants

Based on the model, what should the student say about the role of living organisms in the water cycle?

Plants help move water from the soil to the atmosphere

Animals generate heat that helps evaporate water from the land

Plant movements create wind that helps draw water into the atmosphere

Animals create pathways in the mountains that allow water to flow downhill

Why might introducing a new fish be a bigger problem than the invasive plant species?

The fish might cause a decrease in the number of native, beneficial plants

The fish might cause an increase in the number of native, beneficial plants

The fish might attract fisherman to the lake

One type of conservation practice is irrigating crops with treated wastewater. Doing this MOST DIRECTLY conserves groundwater by

providing another source of water

One type of conservation practice is using indoor faucet nozzles that limit water flow. Doing this MOST DIRECTLY conserves groundwater by

providing another source of water

One type of conservation practice is using water from a rainwater collection system. Doing this MOST DIRECTLY conserves groundwater by

providing another source of water

Students are designing a solar oven that can be made from materials found in their homes. Solar ovens take more time to heat food than regular ovens. The students would like to build a solar oven that heats food as quickly as possible. What TWO things should they consider?

possible ways of preventing or reducing heat loss from the oven

designing an oven that will collect as much sunlight and absorb as much heat as possible

type of food that will be heated

how often the oven will be used to heat food

Students are designing a solar oven that can be made from materials found in their homes. Solar ovens take more time to heat food than regular ovens. The students would like to build a solar oven that heats food as quickly as possible. What would IMPROVE the rate of heating?

Covering the interior walls of the oven with a reflective material like aluminum foil

allowing outside air to circulate inside the oven

using cookware that is uncovered and open to the atmosphere

Which statement BEST describes how the model represents the Sun and Earth?

The ball is the Earth, the pole is the Sun, and the rope is the force of gravity

The ball is the Sun, the pole is the force of gravity, and the rope is the Earth

The ball is the Sun, the pole is the Earth, and the rope is the force of gravity

The ball is the Earth, the pole is the force of gravity, and the rope is the Sun

Students observed plants in the field and took pictures over the course of 3 years. The observations show that

Anderson's thistle population decreases while the Canada thistle population increases

Anderson's thistle population increases while the Canada thistle population decreases

Anderson's thistle population decreases while the Canada thistle population stays the same

Students observed plants in the field and took pictures over the course of 3 years. Looking at 3 years of observations, the students assume the environmental conditions of the field will stay the same for the next 3 years. What prediction is MOST LIKELY?

The field will only have Canada Thistle

The field will only have Anderson's Thistle

Students are conducting an investigation on the rise in average temperatures in their city over the years. They also observed graphs of global temperature rise. They set up the beakers pictured. What should be true about their investigation?

It should model the interaction between Earth's atmosphere, greenhouse gases, and sunlight

It should model the interaction between Earth's atmosphere, greenhouse gases, and humidity.

It should model the interaction between Earth's atmosphere, greenhouse gases, and landforms.

Students measured the temperature of 3 different beakers to model the interaction between Earth's atmosphere and sunlight. Which claim is true based on the graph?

A change in CO 2 will cause a change in temperature

A change in temperature causes a change in CO 2

Changes in CO 2 are not connected to changes in temperature

What is true about the relative potential energy at various points in the roller coaster diagram?

At "1", the potential energy is greater than the potential energy at "3"

At "3", the potential energy is greater than the potential energy at "4"

At "4", the potential energy is greater than the potential energy at "2"

What is true about the transfer of energy?

From point "2" to "3", the energy stored in the train is transformed into kinetic energy, then into motion, thermal, and sound energy

From point "2" to "3", the energy stored in the train is transformed into potential energy, then into motion, thermal, and sound energy

What is true about the transfer of energy from point "3" to point "4"?

From point "3" to "4", the kinetic energy is transformed back into potential energy

From point "3" to "4", the potential energy is transformed back into kinetic energy

Measurements of the speed of the train show that energy is being lost. Which claim is true if evidence collected shows the tracks are warmer after the train has passed?

The loss of energy is due to the friction of the train wheels to the track

The loss of energy is due to the air pushing back on the train as it moves down the track

CAST Science 8 Practice Test 2

6th - 8th Grade

•

52 Qs

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CAST Science 8 Practice Test 2

Quiz

•

Science

•

6th - 8th Grade

•

Practice Problem

•

Hard

•

NGSS

MS-LS2-1, MS-LS2-4, MS-PS1-5

+32

Standards-aligned

An Le

Used 365+ times

FREE Resource

52 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model correctly shows that the mass is conserved in the reaction?

Tags

NGSS.MS-PS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In this equation, the reactants are on the

left of the arrow

right of the arrow

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In this equation, the products are on the

left of the arrow

right of the arrow

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Because this model shows atoms connected by a chemical bond, you are looking at

atoms

single elements

molecules or compounds

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After the predator is introduced, which fish has a BETTER chance of surviving?

light colored fish

dark colored fish

both light and dark have the same chance of surviving

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why would the dark colored fish have a better chance of surviving after the new predator is introduced?

The predator can move faster than this species of small fish

The predator cannot see them as well as the fish of the light color

The predator predicts where each fish will be

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Students are asked to make a claim about which design will be both break-resistant and keep the water hot for the longest time. Which claim best meets the two criteria?

Bottle 1: It has an unbreakable steel lining.

Bottle 2: It has a glass inner lining which is a better insulator

Bottle 3: It has an unbreakable steel inner lining and a foam cover that will keep the water hot for the longest time.

Bottle 3: It has glass inner lining and a foam cover that will keep the water hot for the longest time.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

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CAST Science 8 Practice Test 2

52 questions

Which model correctly shows that the mass is conserved in the reaction?

In this equation, the reactants are on the

In this equation, the products are on the

Because this model shows atoms connected by a chemical bond, you are looking at

After the predator is introduced, which fish has a BETTER chance of surviving?

Why would the dark colored fish have a better chance of surviving after the new predator is introduced?

Students are asked to make a claim about which design will be both break-resistant and keep the water hot for the longest time. Which claim best meets the two criteria?

Choose a claim that best agrees with the data.

MATH REVIEW (EXPONENTS): Which is bigger?

This graph shows almond production in the US since 2012. What is true about the graph?

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