Element Compound Molecule Mixtures Quiz

What is an element?

• A substance that can be broken down into simpler substances by physical means.

• A substance that is composed of only one type of atom.

• A substance that can be broken down into simpler substances by chemical means.

• A substance that cannot be broken down into simpler substances by chemical means.

Give an example of an element.

• oxygen

• nitrogen

• hydrogen

• carbon

What is a compound?

• A compound is a substance formed by the chemical combination of two or more elements in definite proportions.

• A compound is a substance formed by the physical combination of two or more elements.

• A compound is a substance formed by the biological combination of two or more elements.

• A compound is a substance formed by the mechanical combination of two or more elements.

Provide an example of a compound.

• iron

• carbon dioxide

• oxygen

• water

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What is a molecule?

• A molecule is a type of cell.

• A molecule is a unit of energy.

• A molecule is a form of radiation.

• A molecule is a group of two or more atoms held together by chemical bonds.

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Give an example of a molecule.

• nitrogen

• oxygen

• carbon dioxide

• water

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What is a mixture?

• A mixture is a combination of two or more substances that are chemically bonded together.

• A mixture is a single substance that cannot be separated into its components.

• A mixture is a combination of two or more substances that are not chemically bonded together.

• A mixture is a type of pure substance that has a fixed composition.

Provide an example of a mixture.

• sugar and water

• salt and water

• oil and vinegar

• milk and cereal

Differentiate between an element and a compound.

• An element is a pure substance made up of two or more different elements chemically combined, while a compound is a substance made up of only one type of atom.

• An element is a substance made up of two or more different elements chemically combined, while a compound is a pure substance made up of only one type of atom.

• An element is a mixture of different types of atoms, while a compound is a pure substance made up of only one type of atom.

• An element is a pure substance made up of only one type of atom, while a compound is a substance made up of two or more different elements chemically combined.

Explain the difference between a molecule and a mixture.

• A molecule is a combination of two or more substances that are not chemically bonded, while a mixture is a combination of two or more atoms bonded together.

• A molecule is a combination of two or more atoms bonded together, while a mixture is a combination of two or more substances that are not chemically bonded.

• A molecule is a pure substance, while a mixture is impure.

• A molecule is a homogeneous mixture, while a mixture is a heterogeneous mixture.

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NGSS.MS-PS1-1