The Linnaean system of classification is used to group animals together based on how closely related scientists think organisms are. Which describes the most closely related organisms?

Timberwolves and Bengal tigers are in the same order.

Corals and jellyfish are in the same phylum.

Lemurs and koala bears are in the same class.

Seahorses and sea stars are in the same kingdom.

Gloria is comparing anatomical features of several organisms. She makes a diagram to show some similar characteristics that she observes. Which best describes what Gloria's observations are evidence for?

All organisms share a common ancestor.

All organisms share a common lifestyle.

All of the organisms share the same DNA.

All of the organisms share the same habitat.

Kashi wanted to describe to his friend how living things are organized. Which best describes the pattern of organization in an organism?

Tissues are more complex than organs.

A scientist studies different types of rats. The scientist finds a fossil that appears to be a rat skull, but it does not look exactly like any known rat species. What can the scientists most likely conclude about the organisms?

The fossil specimen is a species no longer alive today.

The fossil specimen evolved over time into modern rats.

The fossil specimen is not related to any modern rats.

The fossil specimen lived in environments similar to those of modern rats.

A small population of lizards lives on an island where the environment is changing quickly. Which best describes why the lizards may become extinct?

The lizards do not have enough genetic variation.

The lizards are not able to reproduce.

The lizards are undergoing natural selection.

The lizards have too much overproduction.

Jasmine wants to describe how plant cells and animal cells are similar. Which statement should Jasmine not make about plant and animal cells?

Plant and animal cells both need carbon dioxide.

Plant and animal cells both produce energy.

Plant and animal cells both recycle waste products.

Plant and animal cells both require sugar.

What are the main structures of the cardiovascular system?

heart, blood, and blood vessels

Gerald listed four levels of structural organization within multicellular organisms. He listed them in order from the smallest structure to the largest structure. Which list is correct?

cells, tissues, organs, organ systems

cells, tissues, organ systems, organs

tissues, cells, organs, organ systems

tissues, cells, organ systems, organs

Mangrove swamps are found along the southern coasts of Florida. A mangrove swamp contains an ecosystem of many organisms living among the large root of the mangrove trees. This food web shows some of the relationships in that ecosystem. Which best describes how organisms act in the food web?

Small fish and prawns compete for bacteria.

Herons and pelicans prey upon one another.

Mangroves are the only producers shown.

Phytoplankton act as consumers of bacteria.

Which is a scientific question that can be tested?

Does water heat up quickly than sand in sunlight?

Which is the nicest color for rose plants?

How many pines trees are in a tundra forest?

A scientist is raising the temperature of a sample of water to find out if the amount of salt that can be mixed into the water changes. Which is the independent variable in this investigation?

The amount of water in the sample.

The amount of salt that mixes in the water.

The type of salt mixed into the water.

Which must be true of any hypothesis for it to be useful in a scientific investigation?

It must lead to further investigations.

It must be used to develop a theory.

It must be developed without depending on prior investigations.

Which best describes an experiment?

A scientist measures the height of crops that received different fertilizers.

A scientist measures the speed at which an eagle travels while it is hunting.

A scientist measures the diameter of a certain type of tree throughout a forest.

A scientist measures the rate at which a population of wild insects reproduces.

A scientist announces that he has found a new way to produce energy. Why is it important for other scientists to replicate the results?

To confirm that the results are valid and not the result of errors.

To include more scientists in the development of the new energy source.

To make sure that all scientists know how to perform the same investigation.

To find ways to make the investigation easier to perform.

Brian conducts an investigation. He follows the procedure below: Which step indicates repetition?

Step 3: Drop the ball 10 more times from the same height.

Step 1: Hold a golf ball at a height of 50 cm, and let go.

Step 2: With a partner, measure the height to which the ball bounces.

Step 4: Find the average height to which the ball bounces.

Zachery conducts an investigation involving cells. He finds that adding a certain chemical to a cell causes it to make a protein that humans need to stay healthy. What should Zachery do next?

Repeat the investigation to see if he gets the same results.

Publish the results in a scientific journal.

Hold a press conference to announce the discovery.

Destroy the procedure so that no one else can repeat it.

Leah heats a sample of an unknown solid until it melts into a liquid. Which describes an example of replication related to Leah's investigation?

Raquel heats an identical sample to see if it melts at the same temperature.

Tina continues to heat the sample until it turns into a gas.

Juan lets the sample cool and then heats it again.

Victor heats a different sample with the same mass until it melts.

A student makes a physical model of an atom using toothpicks and foam balls. What is a limitation of this physical model of an atom?

It cannot show the interactions that exist between the parts.

It cannot show the components that make up an atom.

It is not based on experimental data collected by scientists.

It does not show the general structure of an atom.

Upon completing an investigation, Mellissa summarizes the work in a lab report. Which title most likely indicates that the student used a model to prepare the report?

Comparing the Sizes of Planets in the Solar System.

The Proper Use of Lab Equipment

Safety Procedures To Follow at All Times

Using The International System of Units (SI)

A telescope is a type of technology used to study the moons of other planets. How does this technology help scientists?

It makes the moons appear closer than they are.

It brings the objects closer to Earth.

It enables scientists to visit the moons.

It makes the moons larger than they are.

Scientific knowledge can be changed. Which would most likely lead to a change?

A scientists collects data that fails to support an older idea.

A scientist makes observations to test an older idea.

A scientists raises new questions about an older idea.

A scientists has a new idea that goes against an older idea.

Which choice describes the collection of evidence?

Scientists make many observations of a single object.

Scientists examine ideas and debate them.

Scientists write out their findings in scientific journals.

Scientists decide what the results of an experiment mean.

The heliocentric model of the solar system states that all objects in the solar system orbit the sun. Which statement explains why scientists accept this model?

It is an idea that was developed over time based on many observations.

It is an exact description of how the solar system actually works.

It is a close approximation of how the solar system actually works.

It is a better model than the geocentric model because it is much simpler.

Which of the following is a true statement about the scientific theory of evolution?

It was developed using larger amounts of empirical evidence.

It was accepted by all scientists without question.

It proved what most scientists believed at that time.

It has no significant impact on scientific thought and society.

Which is true statement about scientific laws?

Scientific laws can change in light of new evidence.

Scientific laws are the same thing as facts.

Scientific laws can explain a wide range of events.

Scientific laws are the foundations of scientific theories.

Which best explains why scientists accept the theory of relativity as a valid scientific theory?

Scientists are able to explain many natural events by applying the theory.

Scientists have found an example of how the theory of relativity is true.

Scientists recognize that Albert Einstein was the smartest scientists ever.

Scientists believe what is agreed upon by the majority of other scientists.

An engineer claims to know the exact amount of energy it takes to move roller coasters cars to the top of a track. The engineer uses the same formula to calculate the energy needed to move any object. Which best describes how the engineer can know the right amount of energy?

The engineer uses a law, because it is a formula that can be applied without exception.

The engineer uses a theory, because the engineer can explain the motion of any object.

The engineer uses a theory, because the calculations are based on evidence.

The engineer uses a law, because the motion of objects is a real world problem, not a theoretical one.

The average distance from Earth to the sun is about 149.6 $$\times$$ $$10^6$$ km. Proxima Centauri, the nearest star is about 39.9 $$\times10^{12}$$ km away. Which statement is the most accurate?

The sun is many thousands of times closer to Earth than it is Proxima Centauri.

The sun is many hundreds of times closer to Earth than it is to Proxima Centauri.

The sun is many hundreds of times closer to Proxima Centauri than it is to Earth.

The sun is many thousands of times closer to Proxima Centauri than it is to Earth.

The star Aldebaran is an orange giant star in the constellation Taurus, the bull. Aldebaran is the eye of the bull, and is about 65 light years away. What would happen if Aldebaran were to explode tonight?

We would see the explosion in 65 years.

We would see the explosion before we hear it.

We would see the explosion right away.

We would never be able to see the explosion.

Which correctly orders the relationship from least to greatest in size?

planet, solar system, galaxy, universe

galaxy, planet, solar system, universe

planet, galaxy, universe, solar system

universe, galaxy, solar system, planet

How far is the sun from the center of the milky way?

two-third from the galactic core to the edge of the disc

Half way from the galactic core to the edge of the disk.

Which is true about the sun?

The sun is the closest star to Earth in all galaxies.

The sun is the largest star in the Milky Way galaxy.

The sun has the highest surface temperature of all stars in the Milky Way galaxy.

The sun has the highest absolute brightness of all stars in the Milky Way galaxy.

Why does a star, such as Betelgeuse, have a much greater absolute magnitude than apparent magnitude?

Absolute magnitude does not take into account the distance from Earth.

Absolute magnitude is relative to the sun.

Apparent magnitude does not take into account the distance from Earth.

Which has the hottest temperature?

the left over energy from the big bang

a swirling accretion disk of matter orbiting a black hole.

An astronomer uses a telescope to observe a star. She observes that the color of this star is similar to the color of the sun. Therefore, she infers that the star and the sun have similar sizes and surface temperatures. Using this information, what can the astronomer conclude about the star?

The star is cooler than a blue star.

The star is brighter than a red giant star.

The star is more distant than most other stars in our galaxy.

Maria lives in Miami, Florida, where the weather is very warm most of the year. Her grandparents live in Canada where they have very cold winters. Which best explains why the seasons are so different between Maria's house and her grandparents?

Parts of Earth closer to the equator do not experience as many seasonal changes.

Parts of Earth closer to the equator receive indirect rays from the sun all year long.

Parts of Earth farther away from the equator do not experience many seasonal changes.

Parts of Earth farther away from the equator receive indirect rays from the sun all year long.

Science Jumpstart

Authored by Charles Martinez

Science

8th Grade

66 Questions

NGSS covered

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Carbon is an element essential to all living things on Earth. Which best describes how carbon is transported in a food chain?

Animals that eat plants consume carbon the plants took from the air.

Carbon that is consumed by plants can never be consumed by an animal.

Humans can consume carbon directly from the atmosphere.

Plants consume sugars made of carbon found in the environment.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Karla is explaining cell theory to Jean. Which statement should Karla make?

All cells are made of smaller cells.

All cells are the same size.

All cells come from existing cells.

All cells have the same parts.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A fruit fly has the recessive trait of short wings. It is crossed with a fly, which is homozygous for the dominant allele of the gene and has the dominant trait of medium length wings.

What percentage of the offspring of this cross will most likely have the recessive trait of short wings?

25%

50%

100%

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A freshwater marsh is a type of ecosystem. Grasses, fish, wading birds, frogs, and alligators live together in freshwater marshes. Pieces of decaying material sink to the bottom of the marsh. In which places can carbon be found in the marsh?

In living things and decaying materials only.

In living things only.

In the atmosphere and water only.

In the atmosphere, water, living things, and decaying materials.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the function of the nucleus of the cell?

To hold the cell's cell membrane

To hold the cell's cytoplasm

To hold the cell's DNA

To hold the cell's organelles

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Kevin is building a physical model of an animal cell. Which structure should Kevin not include in his model?

cell membrane

chloroplasts

cytoplasm

mitochondria

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Look at the diagram of the human body system.

Which best describes the role that this system plays in supporting the human body?

It delivers oxygen and nutrients to cells.

It eliminates waste from the body.

It provides structural support.

It transmit electrical messages.

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Science Jumpstart

Carbon is an element essential to all living things on Earth. Which best describes how carbon is transported in a food chain?

Karla is explaining cell theory to Jean. Which statement should Karla make?

A fruit fly has the recessive trait of short wings. It is crossed with a fly, which is homozygous for the dominant allele of the gene and has the dominant trait of medium length wings.What percentage of the offspring of this cross will most likely have the recessive trait of short wings?

A freshwater marsh is a type of ecosystem. Grasses, fish, wading birds, frogs, and alligators live together in freshwater marshes. Pieces of decaying material sink to the bottom of the marsh. In which places can carbon be found in the marsh?

What is the function of the nucleus of the cell?

Kevin is building a physical model of an animal cell. Which structure should Kevin not include in his model?

Look at the diagram of the human body system.Which best describes the role that this system plays in supporting the human body?

Examine the Punnet Square below.Which identifies the alleles of the parents shown here?

The Linnaean system of classification is used to group animals together based on how closely related scientists think organisms are. Which describes the most closely related organisms?

Gloria is comparing anatomical features of several organisms. She makes a diagram to show some similar characteristics that she observes.Which best describes what Gloria's observations are evidence for?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

A fruit fly has the recessive trait of short wings. It is crossed with a fly, which is homozygous for the dominant allele of the gene and has the dominant trait of medium length wings.

What percentage of the offspring of this cross will most likely have the recessive trait of short wings?

Look at the diagram of the human body system.

Which best describes the role that this system plays in supporting the human body?

Examine the Punnet Square below.

Which identifies the alleles of the parents shown here?

Gloria is comparing anatomical features of several organisms. She makes a diagram to show some similar characteristics that she observes.

Which best describes what Gloria's observations are evidence for?