Classifying Matter Quiz

Which of the following can be considered examples of matter?

• Heat and electricity

• Water and air

• Magnetism and gravity

• Energy and forces

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Why do different types of matter exist?

• Because there is only one kind of atom

• Because atoms cannot combine

• Because there are many kinds of atoms that can combine in various ways

• Because matter is not made of atoms

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What two categories is matter classified into?

• Into atoms and elements

• Into solids and liquids

• Into substances and mixtures

• Into gases and plasmas

What happens if the composition of a substance changes?

• It becomes an entirely new substance

• It remains the same

• It turns into energy

• It disappears

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What is a molecule?

• A single atom

• Two or more atoms held together by chemical bonds

• A substance made of two or more elements

• A mixture of different elements

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Why do some compounds not form molecules but are still considered substances?

• They contain different elements in varying ratios

• They always contain the same elements in the same ratio

• They are made of a single element

• They are not chemically joined

What do subscript numbers in chemical formulas indicate?

• The weight of the compound

• The ratio of elements in the compound

• The color of the compound

• The temperature of the compound

How can the same elements form different compounds?

• By combining in different ratios

• By changing their color

• By altering their temperature

• By changing their state of matter

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NGSS.MS-PS1-5

Nitrogen and Oxygen can form several different compounds based on the number of each element in the compound. What is unique about each combination of the same elements?

• They have the same properties

• They have unique properties

• They have the same color

• They have the same taste

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What is matter made up of?

• Molecules

• Atoms

• Cells

• Particles

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