Molecules & Atoms

What is a molecule?

• A molecule is a unit of energy.
• A molecule is a type of cell.
• A molecule is a form of light.
• A molecule is a group of two or more atoms held together by chemical bonds.

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NGSS.MS-PS1-1

What is an Atom?

• i don't know

• An atom is the basic unit of matter.
• An atom is a type of atom

• An atom is a type of food

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Above average

What is the smallest unit of a compound that retains its properties?

• molecule
• cell
• element
• atom

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NGSS.MS-PS1-1

Which subatomic particles are found in the nucleus of an atom?

• electrons and protons
• neutrons and electrons
• protons and neutrons
• protons and electrons

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NGSS.MS-PS1-1

Which type of bond involves the sharing of electrons between atoms?

• Metallic bond
• Covalent bond
• Ionic bond
• Hydrogen bond

1. What is the chemical formula for water?

• H20

• CO2

• HD

• CH4

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NGSS.MS-PS1-1

What is the chemical formula for carbon dioxide?

• CO
• CO3
• C2O
• CO2

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NGSS.MS-PS1-1

Which gas makes up the majority of Earth's atmosphere?

• carbon dioxide
• oxygen
• nitrogen
• helium

What is the chemical formula for oxygen?

• O

• O2

• O3

• O4

Tags

NGSS.MS-PS1-1

Which type of bond involves the transfer of electrons between atoms?

• Metallic bond

• Covalent bond

• Ionic bond

• Hydrogen bond