Element or Compound

What is krypton?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

What is gold?

• element

• compound

• mixture

What is water?

• element

• compound

• mixture

Which statement best describes an element?

• made from mixture 

• thousands in the world

• pure, made of only one atom

• can be separated 

​ (a)   are classified as pure substances that can't be broken into anything simpler. ​ ​ (b)   are substances made up of two or more elements that are chemically combined.

• Elements

• Compounds

• Families

• Groups

Compounds are formed when two or more ​ ​ (a)   are chemically combined. When these elements are chemically combined a new substance is formed with new chemical and physical properties. An element is a ​ (b)   substance that cannot be separated into simpler substances by physical or chemical means.

• elements

• compounds

• molecules

• atoms

• pure

• physical

• combined

• molecule

Tags

NGSS.MS-PS1-1

A Chemist studies chemical ​ (a)   and compounds.

• elements

• genes

• Earth

• weather

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Match the following as elements or compounds

• compound

• H

• Element

• CO2

• More than one element

• compound

Match the following vocabulary

• A pure substance represented by a chemical symbol

• Atom

• 2 or more atoms held together by a chemical bond

• Molecule

• 2 or more elements combined chemically

• Element

• The smallest part of a chemical element

• Compound

Tags

NGSS.MS-PS1-1

Elements have only ​ (a)   capital letter. An example of an element would be ​ (b)   . Compounds have ​ (c)   or more capital letters. An example of a compound would be ​ (d)  

• one

• La

• two

• LiNa

Tags

NGSS.MS-PS1-1