8th grade Science NC EOG Review

Quiz

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Chemistry, Biology, Other Sciences

•

KG - University

•

Medium

•

NGSS

HS-PS1-1, HS-LS4-5, MS-PS1-2

+37

Standards-aligned

Used 2K+ times

FREE Resource

80 questions

Show all answers

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student is asked to categorize the following items as elements, compounds, or mixtures: copper wire, salt, aluminum foil, baking soda, a piece of granite, and sugar water. He lists ELEMENTS as copper wire, aluminum foil, and baking soda; COMPOUNDS as salt; MIXTURES as the piece of granite and sugar water. Which is in the wrong category?

copper wire

sugar water

baking soda

salt

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why is water classified as a compound?

Because it is an element, which consists of only one type of atom.

Because it is a substance, which can easily be separated.

Because it is a substance composed of two or more kinds of atoms bonded together.

Because it is an unevenly mixed solution, or a heterogeneous mixture.

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student is designing an experiment for the science fair. She needs to find a material that conducts an electric current, and her teacher has provided her with samples of the following elements. Which of them should she choose?

argon

copper

fluorine

phosphorous

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The mass of the products in a chemical reaction is the same as the mass of the reactants in the reaction. Which law best describes this statement?

The Law of Conservation of Angular Momentum

The Law of Superposition

The Law of Conservation of Matter

The Law of Entropy

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is an example of a chemical reaction?

a pot of water boiling

an iron nail rusting

a piece of ice melting

a sugar cube dissolving in tea

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A scientist recognizes a white powder as sugar due to its white crystals and its sweet taste. However, the scientist notices that the elements that make up the sugar - carbon, hydrogen, and oxygen - look nothing like sugar, nor are they sweet. What is the best explanation for this?

Sugar is a compound, and compounds usually have a different appear

Sugar is an element, so its properties are unique.

Sugar is a heterogeneous mixture, so its appearance is unique.

Substances in nature change randomly and it is impossible to predict those changes.

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement supports the theory of evolution?

All living cells come from previous cells.

All plants and animals have DNA.

Matter cannot be created or destroyed during chemical reactions.

Fossils provide evidence that vertebrates share a common ancestor.

Tags

NGSS.HS-LS4-1

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