Atoms and Molecules

Elements are made of 

• many types of atoms 
• the periodic table
• one type of atom 
• molecules 

Tags

NGSS.MS-PS1-1

The smallest unit of an element that still has the properties of that element.

• Atom
• Adam
• Nucleus
• Element

What holds atoms together to make a molecule?

• Glue
• Bonds
• Magnetism
• Cement

A molecule is _______________________.

• always blue.

• made of 200 or more atoms combined.

• made of 3 or more atoms combined.

• made of 2 or more atoms combined.

Tags

NGSS.MS-PS1-1

Matter is something that has ___________ and _____________.

• mass and is always hungry.

• heat and is using up energy.

• mass and takes up space.

• heat and does not use energy.

Molecules formed from different types of atoms, such as when carbon combines with oxygen to form carbon dioxide gas (CO2). Molecules formed from different types of elements are called what?

• Atoms

• Electrons

• molecules

• Compounds

Tags

NGSS.MS-PS1-1

A substance with two or more different types of atoms bonded together is called...

• An element

• An atom

• A compound

• A mixture

Tags

NGSS.MS-PS1-1

How many molecules of water are in this chemical formula: 2H₂O?

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-1

What does the subscript tell us?

• The number of molecules in a formula

• The number of atoms in an element

• The number of protons in the nucleus of an atom

• The number of electrons in the nucleus of an atom

Tags

NGSS.MS-PS1-5

What is the charge of an electron?

• +1
• -1
• 0