Physical Science - Chapter 3 Check In

All matter is made of

• plasma

• atoms

• compounds

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An atom always has the same number of electrons and

• protons

• neutrons

• nuclei

molecules are

• large

• easy to see

• small

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an example of an element is

• oxygen

• water

• sodium chloride

molecules move most freely in

• solids

• liquids

• gases

an example of a compound is

• helium

• hydroegn

• carbon dioxide

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NGSS.MS-PS1-1

An (a)   is the building block of each kind of matter​

• atom
• compound
• element
• model
• molecule
• natural element
• states of matter

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An​ (a)   has only one kind of atom

• compound
• element
• model
• molecule
• natural element
• states of matter

A ​ (a)   is built to explain how something works

• compound
• model
• molecule
• natural element
• states of matter

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The smallest particle of water that still has all the properties of water is a​ (a)   of water

• compound
• molecule
• natural element
• states of matter

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