8th Grade EOG Review

Based on the density of the sample, which material is the sample

MOST LIKELY made of?

• Plywood

• Aluminum

• Rubber

• Glass

Tags

NGSS.MS-PS1-2

Controlled burns are fires that are purposely set within a designated

area when conditions are safe for the public and for the firefighters

who watch over the fire. Weather and forest conditions are monitored

both before and during the burn. Controlled burns rid forests of tree

limbs, dead leaves, and other debris.

Which prediction can be made about a forest after a controlled burn

has occurred?

• The ability of plants to reproduce will decrease.

• Important nutrients for new plant growth will be returned to

  the soil.

• Short-term air quality in the area will improve.

• Long-term biodiversity will be reduced.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-5

Students are baking a cake. They mix together all the necessary

ingredients and pour them into a pan. Then they place the pan into

the oven to cook for 40 minutes.

Which statement BEST explains why baking a cake is evidence of a

chemical reaction?

• The state of matter of some of the ingredients changed while

  being cooked.

• The total mass of the ingredients was the same before and after

  they were cooked.

• The temperature of the ingredients increased as they absorbed

  thermal energy from the oven.

• The ingredients formed a new substance after they were cooked in

  the oven.

Tags

NGSS.MS-PS1-2

A student is looking at a model of a neutral atom. The model shows

that the atom has 19 subatomic particles in the nucleus. Ten of those

subatomic particles do not have a charge.

Which statement about the model of the atom is true?

• It has an atomic number of 19

• It has 10 electrons

• It has 9 protons

• It has an atomic mass of 29 amu

Tags

NGSS.MS-PS1-1

Student 1 claims that whenever the color of a substance changes, a

chemical change has occurred.

Student 2 claims that food coloring can change the color of a

substance without causing a chemical change.

To test their claims, the students add red food coloring to a glass of

water. The students observe that the clear water turns a light pink

color. Their teacher then runs a test to show that the pink solution

contains both water molecules and food-coloring molecules.

Based on these findings, which student is correct?

• Student 1, because the food-coloring molecules were found in the

  pink solution

• Student 1, because the state of matter changed when the food

  coloring was added

• Student 2, because no new substance was formed when there was

  a color change

• Student 2, because the red food coloring caused the water to

  change to a pink color

Tags

NGSS.MS-PS1-2

Scientists have found some of the same types of rock containing the

same types of fossil species in Africa and Antarctica.

Which explanation does this information support?

• Both continents gradually increased in size over time.

• Both continents were attached by glacial ice millions of years ago.

• Both continents were attached but drifted away from each other

  over time.

• Both continents were underwater millions of years ago.

Tags

NGSS.MS-ESS2-3

What does a warbler MOST likely eat?

• A. fish and insects

• B. insects and nectar

• C. seeds and nuts

• D. small mammals and nuts

Which is NOT an example of a symbiotic relationship?

• A. a tick biting a white-tailed deer

• B. a caterpillar changing into a butterfly

• C. a remora fish sticking to the shell of a sea turtle

• D. a clownfish living within the parts of a sea anemone

Tags

NGSS.MS-LS2-2

What can be inferred from the bones in the pictures?

• A. all structural features are used to walk

• B. the organisms have similarities in skin features

• C. all structural features have a similar function

• D. the organisms have the same structural features

Tags

NGSS.MS-LS4-2

The diagram represents a section of Earth that a paleontologist, a

scientist who studies fossils, has been working with for years. Which

statement correctly describes this diagram?

• A. Layer W contains fossils of organisms that existed on Earth after the

  organisms found in layers U and R.

• B. Layer U contains fossils of organisms that are older than the organisms found

  in layer R.

• C. Layers W and U contain fossils that are animal species.

• D. Layers R and W contain fossils that are both types of plant species.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

NGSS.MS-LS4-1