What are elements at the atomic level?

• Mixtures of various substances

• Compounds of different atoms

• Models of atoms that represent elements

• Atoms that can be broken down into smaller parts

Tags

NGSS.MS-PS1-1

What is unique about elements in the periodic table?

• They are mixtures of different substances

• They represent all matter in the universe

• They can be broken down into smaller elements

• They are all compounds

What is the element in Mr. Hempstead's ring?

• Platinum

• Tungsten

• Silver

• Gold

How are compounds formed?

• By combining mixtures

• By chemically bonding different elements

• By breaking down elements

• By mixing elements physically

Tags

NGSS.MS-PS1-5

What is the chemical formula for water?

• H2O

• O2H

• H2

• HO2

Tags

NGSS.MS-PS1-1

What can be broken down into smaller pieces?

• Atoms

• Mixtures

• Compounds

• Elements

What is a mixture?

• A chemical combination of elements

• A physical combination of elements and compounds

• A single element

• A single compound

What happens when you mix water and salt?

• They form a mixture

• They chemically combine

• They remain separate

• They form a new compound

What is the difference between compounds and mixtures?

• Compounds are mixtures, mixtures are elements

• Compounds are elements, mixtures are compounds

• Compounds are chemical combinations, mixtures are physical combinations

• Compounds are physical combinations, mixtures are chemical combinations

What are elements?

• Chemical bonds of different elements

• Physical mixtures of substances

• Combinations of different atoms

• Individual molecules with unique properties that can't be broken down

Tags

NGSS.MS-PS1-1